InfoVis:Wiki - User contributions [en]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 4

2009-01-05T13:57:49Z

UE-InfoVis0809 0427571: Basic description of the description added

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe4.html Beschreibung der Aufgabe 4]

=== Gegebene Daten ===

'''Homer Simpson's Trinkverhalten in Abhängigkeit von seinen Lebensumständen''' 

...Visualisierung von Homer's Lebensabschnitten bzw. Ereignissen mit Einfluss auf sein
Trinkverhalten (zB.: Kindheit, Pubertät, Arbeitslosigkeit, Beziehungen, Hochzeit, Geburt
der Kinder, Liebeskummer, Alltag, etc.) von seiner Geburt bis Jetzt + mögliche
Zukunftsszenarien (mind. 3).
 
*Die Menge folgender Getränke soll für die jeweiligen Lebensumstände ablesbar sein
(ml oder Liter - je nachdem - pro Tag, Monat, Jahr (z.B.: Fokus+Kontext Methoden):
a) Wasser 
b) Milch 
c) Fruchtsaft 
d) Cola 
e) Kaffee (Würfelzucker?) 
f) Bier
(vereinfacht angenommen, Homer trinkt ausschließlich diese Getränke)
 
*Die folgenden Werte sollen abhängig von den konsumierten Getränken ablesbar sein:
1) g oder kg konsumierter Zucker (aus Getränken) + empfohlene Maximaldosis pro Tag, Monat, Jahr
(empfohlene Maximaldosis/Tag: 50g; enthaltener Zucker: 10g/100 ml Cola; 10g/100 ml Fruchtsaft; 3g/Würfelzucker). 
2) mg konsumiertes Coffein + empfohlene Maximaldosis pro Tag, Monat, Jahr
(empfohlene Maximaldosis/Tag: 600mg; enthaltenes Coffein: 10 mg/100 ml Cola; 80 mg/100 ml Kaffee). 
3) g konsumierter Alkohol + empfohlene Maximaldosis pro Tag, Monat, Jahr
(empfohlene Maximaldosis/Tag: 20g; enthaltener Alkohol: 3,6 g/100ml Bier)
 
*Die Daten sollen zur medizinischen/psychologischen Analyse visualisiert werden. 
*Die bisher erlernten Design-Prinzipien sollen umgesetzt werden (z.B.: Optimierung der Data-ink ratio). 
*Die Mockups sollten zumindest 1) Homer's Leben im Überblick 2) und eine Detailansicht wiedergeben. 
*Alle nicht angeführten Daten können frei erfunden werden.

== Links ==

* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]

*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10|Gruppe 10]]

== Description of area of use, data, users, tasks and goals ==
=== Analysis of the Area of Use ===
The visualization is to be used in medical/psychological analysis of the patient Homer Jay Simpson.

=== Analysis of the Dataset ===
'''
* Beschreibung der Datentypen im Datensatz (nominal, ordinal, diskret, kontinuierlich, binär, usw.)
** jede Datendimension hat einen bestimmten Datentyp
*Beschreibung der Datenstrukturen im Datensatz (1-dimensional, 2-dimensional, 3-dimensional, multidimensional, temporal, tree / hierarchy, network / graph, usw.)
** im Datensatz können bestimmte Strukturen implizit oder explizit enthalten sein (z.B. Hierarchien usw.)
** der Datensatz als Gesamtheit hat eine bestimmte Struktur'''

=== Analysis of the the Targetted User Group ===
The users of the tools will most likely be staff trained in medicine or psychology and will know what the dataset with which the visualization concerns itself. Furthermore, it can be taken for granted, that most users will have a better than basic understanding of statistics. A detailed domain knowledge can be taken for granted.

No intimate knowledge of the subject (Homer Jay Simpson) should be taken for granted (unless Dr. Nick is the one to use the tool ;) ), a time-axis should be used to put the different circumstances in context.

'''Gibt es bekannte / oft verwendete Methoden / Visualisierungstechniken?'''

=== Goals of the Visualization ===
The visualization should bring to light, the change in drinking habits of the named types of fluids (water, milk, fruit juice, coke, coffee and beer) and the amount of certain ingredients (sugar, caffeine, alcohol) ingested per time unit (depending on displayed detail-level) over time and the influence of certain events during the life of the subject.

== A Solution ==

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 3

2008-12-09T14:39:29Z

UE-InfoVis0809 0427571: typos, grammar

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe3.html Beschreibung der Aufgabe 3]

=== Zu beurteilende Grafik ===
[[Image:Sotpg6.jpg|400px]] 
Emissions in the US - Diff'rent smokes

== Evaluation ==

As it is written at the top of the graph the primary aim is to show that:
* pollution grows (through the size of the cube)
* immediately-hazardous pollution decreases (through the bars in the cube)
* CO2 emission increases (not recognizable at first sight)

Expressed in percentages this statement is correct. Measured in overall pollution it is incorrect, because the total emission increases. But whether this statement is true or not, our goal is to emphasize the author's message by improving his expression.

{{Quotation | In anything at all, perfection is finally attained not when there is no longer anything to add, but when there is no longer anything to take away. | '''[Antoine de Saint Exupery]'''}}

The data shall be highlighted to give them a voice that comes through loudly and clearly, without distraction. '''[Few, 2004a]''' This can be achieved by subtracting anything, that is not required to support the message and by emphasizing what's important. This leads us to the term of ''elegance''. ''Elegant'' comes from the Latin term ''eligere'' and means to choose carefully. '''[Few, 2004a]''' In the following we want to evaluate the current graph by using a concept called ''data-ink ratio'' introduced by Edward R. Tufte in '''[Tufte, 1983]'''.

=== Data-Ink Ratio ===
Explained in a few words, the data-ink ratio is the proportion of ink which is used to present the actual data, compared to the total amount of ink which is used in the entire graph. '''[Few, 2004b]''' The graph uses a lot of unnecessary ink - in this case pixels - and therefore has a low data-ink ratio.

==== Reduce non-data ink ====
Every unnecessary non-data ink should be reduced to a minimum. The gray shading at the top can even be removed completely without loss of any data. Having a better representation of data, the written text at the top would become redundant. It could be removed or at least replaced with a few words to introduce the reader to the topic. The engraved text at the top of the cube, the year-digits at the top/left side of the cube and so on can be reduced or even removed.

==== Enhance the data ink ====
To emphasize the primary aim of showing us how emission of CO2 increases, the part of the cube which represents CO2 could be highlighted. In the current graph carbon monoxide seems to be very important and acts as an eye catcher - this was not intended by the author.

== Refactored Design ==
[[Image:co2_InfoVis.png]] 
Legend:
* DEPM - Directly Emited Particulate Matter
* SO2 - Sulfur Dioxide
* VOC - Volatile Organic Compound
* NO - Nitrogen Oxide
* CH4 - Methane
* CO - Carbon Monoxide
* Pb - Lead
* NH3 - Ammonia
* CO2 - Carbon Dioxide

== Applied Changes ==
=== Cube ===
'' cube graph '' 
First of all, we want to comment on the cube concept. Generally, we like this concept. However, this type of visualization does not optimally convey the message of the author. It is a relatively complex technique for this kind of data, which can be presented in a much easier fashion.

'' matrix chart '' 
To solve this problem we used another type of graph. The matrix (bar)chart.
Bar charts are widely used and easy to understand. In addition it is easier to see the (percentual) distribution of the data easier in the bar-chart than in the cube.

=== Bars ===
'' cube graph '' 
The data-ink ratio decreases through the three dimensional graphs, since there is much ink used that does not code any new data.

'' matrix chart '' 
Due to their data-ink ratio, 2D bars are in this case better. It is much greater than that of the cube. What is more, there is no information loss. The reader can guess the relative amount of gas very fast by comparing the size of the bars or just look at the specific amount indicated by the numbers in or above the bars for a concrete comparison.

=== Labels ===
'' cube graph '' 
There are no labels for the data for the years 1950 and 1980.
Since there are labels only in the first cube you have to guess the ratio of the different gases and scroll all over the graph in order to see the representation of each bar.

'' matrix chart '' 
To solve this problem we added either an abbreviation or a chemical formula as a label in the matrix chart; we expect that readers of this kind of graph will be familiar with this terminology. Nevertheless, we added a legend in the wiki, so that the reader can easily see what the abbreviations mean.

=== Color ===
'' cube graph '' 
The color palette used is not appropriate. The colors are very bright and the reader concentrates mostly on the yellow bars. Because of the gray color of CO2 the reader assumes that this part of the cube is not important. This, as we know, is not the case.

'' matrix chart '' 
To solve this problem we used a softer earth color for all the data, since we can say everything that we want with the size of the bars. Different colors are not needed in this case.

== Links ==

* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]

* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10|Gruppe 10]]

== Bibliography ==

[Few, 2004a] Stephen Few, Show Me the Numbers: Designing Tables and Graphs to Enlighten. Analytics Press, 2004, Chapter 7 - General Design for Communication.

[Few, 2004b] Stephen Few, Elegance Through Simplicity, United Business Media LLC. Created at: October 16, 2004. Retrieved at: December 7, 2008. http://www.intelligententerprise.com/showArticle.jhtml?articleID=49400920

[Tufte, 1983] Edward Tufte, ''The Visual Display of Quantitative Information.'' Graphics Press, 1983

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 2

2008-11-30T13:46:41Z

UE-InfoVis0809 0427571: punkpumas

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe2.html Beschreibung der Aufgabe 2]

=== Zu beurteilende Tabelle ===

[[Image:Web_statistics.jpg]]

== Links ==

* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]

* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10|Gruppe 10]]

== Evaluation ==
=== Overall ===
A bit more white space should be used, to isolate the table from the graph. '''[Stephen Few, 2004]'''

=== Title ===
Should contain a brief description of the contents and inlcude the key elements of the table (groups, classifications, variables, etc). At least the year should be included in the table. '''[Carter et al., 2004]'''

=== Rows and columns ===
{{Quotation | We naturally think of time as moving from left to right, rather than from top top bottom. [Stephen Few, 2004]}}

The orientation of the table is not optimized, though the choice to let the months be vertically oriented may be a result of lack of space on screen/paper.
'''[Stephen Few, 2004]'''

=== Column headers ===
Fill color is a good way to differentiate between column headers and the data body of a table, when used subtly. In this case, the table is used with an incorporated diagram, which uses the color coding of the column headers of the table. Are we also to change the diagram? I'd prefer to, since the also the diagram is not optimized for readability. One shouldn't go overboard with the use of background colors for differentiation, ''unless one means to highlight the area''. '''[Stephen Few, 2004]'''

=== Body ===
Not optimal readability of the columns due to little white space between rows. The readers eyes should be assisted when scanning down the columns, this is achieved by reduced white spacing between rows; but in this case the white space is a bit too small. A limit of 1:1 between data height and height of white space offers a good readability in general, though in this case, should be 1:.8 or so, to direct scanning of vertically aligned data.
'''[Stephen Few, 2004]'''

=== Numbers and data format ===
One shouldn't include unnecessary information in the table. This occurs in the column labeled "Month", in which every "month" is followed by the year displayed in the table. The year should be put in the header of the table. '''[Stephen Few, 2004]'''

The numbers in the table should be reformatted to incorporate commas to the left of every three whole-number digits. This promotes effective communication of the data by also allowing people with bad short-term memory to enjoy the table. '''[Stephen Few, 2004]'''

At least in the column labeled "Hits", it is easy to get lost in the long numbers. These should be truncated. '''[Stephen Few, 2004]'''

=== Alignment ===
According to '''[Stephen Few, 2004]''', numbers that represent quantitative values, as opposed to identifiers should ''always'' be aligned to the right.

In the column labeled "Bandwidth", commas occur. These should also be aligned to each other, to the right, so as to ease the scanning of the data. The same number of decimal digits is used in all fields of the column, but the alignment is not optimized for readability. '''[Stephen Few, 2004]'''

The headers of the columns should also be aligned as the data. '''[Stephen Few, 2004]'''

== Redesign ==

You can find our redesign proposal to the right by clicking on the thumbnail picture.
The diagram should not be taken into account, since we just wanted to show that there has to be more whitespace between diagrams and their corresponding data tables. We have just created it out of the data but did not customize it. Please discuss only the table associated with it.

[[Image:RefactoredTable.png]]

=== Changelog ===

* The title is more specific.
* Headers are in one color. If you do this, the graph should contain a legend.
* Some of the headers are slightly changed e.g. Bandwidth to Data GB
** The data in some columns has been reformatted to reflect the changes of corresponding header.
* A very thin ruler is added under the header row
* Ruler added before the total row.
* White spaces between rows and columns are changed.

== Bibliography ==
'''[Stephen Few, 2004]''' Stephen Few, Show Me the Numbers: Designing Tables and Graphs to Enlighten, Analytics Press, 2004, Chapter 8 - Table Design

'''[Carter et al., 2004]''' Michael Carter, Eric N. Wiebe, Miriam Ferzli, Graphing -Designing Tables. Created at. 5.16.2005. Retrieved at: November 18, 2008. http://www.ncsu.edu/labwrite/res/gh/gh-tables.html.

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 2

2008-11-30T13:45:54Z

UE-InfoVis0809 0427571:

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe2.html Beschreibung der Aufgabe 2]

=== Zu beurteilende Tabelle ===

[[Image:Web_statistics.jpg]]

== Links ==

* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]

* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10|Gruppe 10]]

== Evaluation ==
=== Overall ===
A bit more white space should be used, to isolate the table from the graph. '''[Stephen Few, 2004]'''

=== Title ===
Should contain a brief description of the contents and inlcude the key elements of the table (groups, classifications, variables, etc). At least the year should be included in the table. '''[Carter et al., 2004]'''

=== Rows and columns ===
{{Quotation | We naturally think of time as moving from left to right, rather than from top top bottom. [Stephen Few, 2004]}

The orientation of the table is not optimized, though the choice to let the months be vertically oriented may be a result of lack of space on screen/paper.
'''[Stephen Few, 2004]'''

=== Column headers ===
Fill color is a good way to differentiate between column headers and the data body of a table, when used subtly. In this case, the table is used with an incorporated diagram, which uses the color coding of the column headers of the table. Are we also to change the diagram? I'd prefer to, since the also the diagram is not optimized for readability. One shouldn't go overboard with the use of background colors for differentiation, ''unless one means to highlight the area''. '''[Stephen Few, 2004]'''

=== Body ===
Not optimal readability of the columns due to little white space between rows. The readers eyes should be assisted when scanning down the columns, this is achieved by reduced white spacing between rows; but in this case the white space is a bit too small. A limit of 1:1 between data height and height of white space offers a good readability in general, though in this case, should be 1:.8 or so, to direct scanning of vertically aligned data.
'''[Stephen Few, 2004]'''

=== Numbers and data format ===
One shouldn't include unnecessary information in the table. This occurs in the column labeled "Month", in which every "month" is followed by the year displayed in the table. The year should be put in the header of the table. '''[Stephen Few, 2004]'''

The numbers in the table should be reformatted to incorporate commas to the left of every three whole-number digits. This promotes effective communication of the data by also allowing people with bad short-term memory to enjoy the table. '''[Stephen Few, 2004]'''

At least in the column labeled "Hits", it is easy to get lost in the long numbers. These should be truncated. '''[Stephen Few, 2004]'''

=== Alignment ===
According to '''[Stephen Few, 2004]''', numbers that represent quantitative values, as opposed to identifiers should ''always'' be aligned to the right.

In the column labeled "Bandwidth", commas occur. These should also be aligned to each other, to the right, so as to ease the scanning of the data. The same number of decimal digits is used in all fields of the column, but the alignment is not optimized for readability. '''[Stephen Few, 2004]'''

The headers of the columns should also be aligned as the data. '''[Stephen Few, 2004]'''

== Redesign ==

You can find our redesign proposal to the right by clicking on the thumbnail picture.
The diagram should not be taken into account, since we just wanted to show that there has to be more whitespace between diagrams and their corresponding data tables. We have just created it out of the data but did not customize it. Please discuss only the table associated with it.

[[Image:RefactoredTable.png]]

=== Changelog ===

* The title is more specific.
* Headers are in one color. If you do this, the graph should contain a legend.
* Some of the headers are slightly changed e.g. Bandwidth to Data GB
** The data in some columns has been reformatted to reflect the changes of corresponding header.
* A very thin ruler is added under the header row
* Ruler added before the total row.
* White spaces between rows and columns are changed.

== Bibliography ==
'''[Stephen Few, 2004]''' Stephen Few, Show Me the Numbers: Designing Tables and Graphs to Enlighten, Analytics Press, 2004, Chapter 8 - Table Design

'''[Carter et al., 2004]''' Michael Carter, Eric N. Wiebe, Miriam Ferzli, Graphing -Designing Tables. Created at. 5.16.2005. Retrieved at: November 18, 2008. http://www.ncsu.edu/labwrite/res/gh/gh-tables.html.

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 2

2008-11-18T12:56:32Z

UE-InfoVis0809 0427571: A review of the table was added

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe2.html Beschreibung der Aufgabe 2]

=== Zu beurteilende Tabelle ===

[[Image:Web_statistics.jpg]]

== Links ==

* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]

* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10|Gruppe 10]]

== Evaluation ==
=== Overall ===
A bit more white space should be used, to isolate the table from the graph. '''[Stephen Few, 2004]'''

=== Title ===
Should contain a brief description of the contents and inlcude the key elements of the table (groups, classifications, variables, etc). At least the year should be included in the table. '''[Carter et al., 2004]'''

=== Rows and columns ===
{{Quotation | We naturally think of time as moving from left to right, rather than from top top bottom. } [Stephen Few, 2004]}

The orientation of the table is not optimized, though the choice to let the months be vertically oriented may be a result of lack of space on screen/paper.
'''[Stephen Few, 2004]'''

=== Column headers ===
Fill color is a good way to differentiate between column headers and the data body of a table, when used subtly. In this case, the table is used with an incorporated diagram, which uses the color coding of the column headers of the table. Are we also to change the diagram? I'd prefer to, since the also the diagram is not optimized for readability. One shouldn't go overboard with the use of background colors for differentiation, ''unless one means to highlight the area''. '''[Stephen Few, 2004]'''

=== Body ===
Not optimal readability of the columns due to little white space between rows. The readers eyes should be assisted when scanning down the columns, this is achieved by reduced white spacing between rows; but in this case the white space is a bit too small. A limit of 1:1 between data height and height of white space offers a good readability in general, though in this case, should be 1:.8 or so, to direct scanning of vertically aligned data.
'''[Stephen Few, 2004]'''

=== Numbers and data format ===
One shouldn't include unnecessary information in the table. This occurs in the column labeled "Month", in which every "month" is followed by the year displayed in the table. The year should be put in the header of the table. '''[Stephen Few, 2004]'''

The numbers in the table should be reformatted to incorporate commas to the left of every three whole-number digits. This promotes effective communication of the data by also allowing people with bad short-term memory to enjoy the table. '''[Stephen Few, 2004]'''

At least in the column labeled "Hits", it is easy to get lost in the long numbers. These should be truncated. '''[Stephen Few, 2004]'''

=== Alignment ===
According to '''[Stephen Few, 2004]''', numbers that represent quantitative values, as opposed to identifiers should ''always'' be aligned to the right.

In the column labeled "Bandwidth", commas occur. These should also be aligned to each other, to the right, so as to ease the scanning of the data. The same number of decimal digits is used in all fields of the column, but the alignment is not optimized for readability. '''[Stephen Few, 2004]'''

The headers of the columns should also be aligned as the data. '''[Stephen Few, 2004]'''

== Redesign ==

== Bibliography ==
'''[Stephen Few, 2004]''' Stephen Few, Show Me the Numbers: Designing Tables and Graphs to Enlighten, Analytics Press, 2004, Chapter 8 - Table Design

'''[Carter et al., 2004]''' Michael Carter, Eric N. Wiebe, Miriam Ferzli, Graphing -Designing Tables. Created at. 5.16.2005. Retrieved at: November 18, 2008. http://www.ncsu.edu/labwrite/res/gh/gh-tables.html.

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 2

2008-11-18T10:59:14Z

UE-InfoVis0809 0427571:

Teaching talk:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1

2008-11-12T21:11:05Z

UE-InfoVis0809 0427571:

== Bewertung ==

'''vorläufige Bewertung: 9 von 10 Punkten''' 

'''Verbesserungsvorschläge:''' 

''Hyperbolic Tree:'' 

Definition:
*...sollte Wiki-Konform formatiert sein; wenn es sich um ein Zitat handelt > korrekt zitieren

 
Struktur und Inhalt:
*sehr gute Beschreibung

 
Referenzen:
*Bildquellen korrekt angeben und formatieren
*[Wikipedia, 2008] > z.B. in [Wikipedia, 2008a] und [Wikipedia, 2008b] unterteilen > es handelt sich um 2 Referenzen! Mehr dazu: http://www.infovis-wiki.net/index.php/Help:Citation_%26_Bibilography_Format

 

''Pareto Chart'' 

Definition:
*...sollte Wiki-Konform formatiert sein; wenn es sich um ein Zitat handelt > korrekt zitieren
 

Struktur und Inhalt:
*gute Beschreibung
*Externe Links, wie z.B. „Joseph M. Duran“ sollten z.B. unter „External Links“ am Ende der Site angegeben werden.

 

Referenzen:
*Beim Bild „Cause-analysis-tools-paret.gif“ fehlt die (korrekt formatierte) Quelle.
*Bei der Quelle [Eisermann, 2004] ist der Autor anzuführen.

 
-- [[User:Martha_Kaltenecker|Martha Kaltenecker]] 19:17, 12 November 2008 (CET)

Die Vorschlägen wurden realisiert.

'' hyperbolic tree ''
*Die bilden sind aber screenshots von einem javascript, siehe der link dazu. Was könnte man dann machen? Einfach als site hantieren?
'' pareto chart ''
*Die quelle für das bild „Cause-analysis-tools-paret.gif“ kann ich nicht finden, ich frage den autor.
[[User:UE-InfoVis0809 0427571|UE-InfoVis0809 0427571]] 22:11, 12 November 2008 (CET)

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Hyperbolic Tree

2008-11-12T21:06:26Z

UE-InfoVis0809 0427571: corrected sources, formatting

=Hyperbolic Tree=
[[Image:Hyperbolic_tree-focus_root.png|thumb|''Figure 1: Hyperbolic Tree with it's root focused [Garcia, 2008]'']]
[[Image:Hyperbolic tree-context.png|thumb|''Figure 2: Hyperbolic Tree with a focused child [Garcia, 2008]'']]

==Definition==
{{Definition|A Hyperbolic Tree is a fisheye representation of information in order to visualize huge amount of data.}}

==A mathematical point of view==
A Hyperbolic Tree, sometimes called a Hypertree, is a visualization method based on the hyperbolic geometry. In this geometry the parallel postulate of Euclidean geometry is replaced. That parallel postulate says, that for any given line '''l''' and any point '''P''' it can only exist exactly one line which does not intersect '''l''' and runs through '''P'''. This line is called a parallel line. In a hyperbolic space these two lines would diverge. '''[Wikipedia, 2008a]''' Because of this characteristic the circumference grows exponentially as a function of the circle's radius. Similarly the number of leaves in a tree grow exponentially as a function of it's depth. '''[Wikipedia, 2008b]'''

==Information visualization==
A Hyperbolic Tree is a concept which makes use of the properties discussed before. It can be classified as a focus + context technique. Only a small number of data is shown on the most expansive area in and near the center. Information in this area is stretched and is the part where the focus is caught. The peripheral area of the circle is used for all other nodes - the context. Information in this part is "squeezed". '''[Pirolli et al, 2003]''' Generally a hypertree is known as a "fisheye representation of information".

==User interaction==
The root-node is placed in the center of the circle. ''[Figure 1]'' Child nodes are positioned in other fictive concentric circles. Users can click within the tree to focus the desired area. As a result the user might be presented with something like that shown in ''[Figure 2]''. Typically the part of bringing other nodes into focus, the user is shown a smooth transformation of the display. '''[Pirolli et al, 2003; Huang and Quan, 2004]'''

==Comparison==
Compared to other conventional tree browsers, the hyperbolic tree shows all of the information at once, where other techniques force the user to scroll. For this reason it could be expected, that browsing performance will increase. The answer is both yes and no. In retrieval tasks, where users simply search for specific nodes, the performance is very good. It is fuerthermore increased through strong practice effects. In comparison tasks, where users have access to nodes in different parts of the tree to compare information. In this task a Hyperbolic tree cannot aim any advantage. On tasks with poor information scent cues, tests can end up with loss of efficiency. '''[Pirolli et al, 2003]''' Other limitations in navigation efficiency occur for trees with a large number of children. Also the concept of focus+context can be lost in specific situations where the "context-part" is pushed in any corner and therefore meaningless. '''[Huang and Quan, 2004]'''

==Bibliography==
'''[Wikipedia, 2008a]''' Wikipedia contributors, Hyperbolic Geometry, ''Wikipedia, The Free Encyclopedia.'', Retrieved at: November, 6 2008. http://en.wikipedia.org/wiki/Hyperbolic_geometry

'''[Wikipedia, 2008b]''' Wikipedia contributors, Hyperbolic Tree, ''Wikipedia, The Free Encyclopedia.'', Retrieved at: November, 6 2008. http://en.wikipedia.org/wiki/Hyperbolic_tree

'''[Pirolli et al, 2003]''' Peter Pirolli and Stuart K. Card and Mija M. Van Der Wege, The effects of information scent on visual search in the hyperbolic tree browser in ''ACM Trans. Comput.-Hum. Interact.'', pages 20-53, 2003, ACM

'''[Huang and Quan, 2004]''' Mao Lin Huang and Wu Quan, 21DF-browser: a multiple fisheye distortion technique for visualizing and navigating hierarchies with large number of leaves, In ''Information Visualisation, 2004. IV 2004. Proceedings. Eighth International Conference on'', pages 277-284, July 2004

'''[Garcia, 2008]''' Nicolas Garcia, JavaScript Information Visualization, Retrieved at: November, 6 2008. http://blog.thejit.org/wp-content/jit-1.0a/examples/hypertree.html<ref>Colors were changed, inverted to suit wiki better</ref>

==Footnotes and references==
<references/>

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Pareto Chart

2008-11-12T20:24:52Z

UE-InfoVis0809 0427571:

== Pareto Chart ==

=== Definition ===

[[Image:Pareto.png|thumb|''This chart is created with MS Excel and the data is hypothetical'']]
{{Definition|A '''Pareto chart''' is a histogram in which all bars are sorted in a descending order. The diagram is often accompanied by a line or curve graph which shows the cumulative value of the particular categories shown in it.}}

=== Pareto Principle ===
The Pareto principle (also known as "the 80-20 rule", "the law of the vital few" and "the principle of factor sparsity") states that, for many events, 80% of the effects come from 20% of the causes. Business management thinker [http://en.wikipedia.org/wiki/Dr._Joseph_Moses_Juran Joseph M. Juran] suggested the principle and named it after Italian economist [http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] , who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients."

=== Statistical and Mathematical Explanation ===
A histogram is a graphical representation of the frequency distribution of the data. In pareto context the data has to be ordered in a descendant way in order to match the pareto principle.

The curved graph in the Pareto Chart is actually а total frequency polygon, which is widely used in statistics. It is built by connecting the total percentage frequencies on the right edge of the bars in the histogram to each other. '''[Dutter, 2008]'''

=== Fields of use ===
The Pareto Chart could be used in many fields and aspects since it is a blueprint of a general principle. However it is most commonly referenced in the following contexts:
* QC/QM - Quality Control/Quality Management
* Microeconomics
* Statistics

=== Example ===
The following pareto chart is a short example of the Pareto problem. The chart lists the types of document complaints in a company. As you can see the sum of the first two types of complaints goes almost up to 80%. So you can basically say, that 30% (2 from 6 types) of the causes lead to 80% of the complaints in that particular company.
[[Image:Cause-analysis-tools-paret.gif|thumb|center|''Example of the pareto principle'']]

=== History ===
[http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] (July 15, 1848 – August 19, 1923), or Fritz Wilfried Pareto, was an Italian sociologist, economist, and philosopher. He introduced the concept of Pareto efficiency and helped develop the field of microeconomics. In 1906, he made the famous observation that twenty percent of the population owned eighty percent of the property in Italy, later generalised by Joseph M. Juran and others into the so-called Pareto principle (also termed the 80-20 rule) and generalised further to the concept of a Pareto distribution.

=== Bibliography ===
[Koch, 2004] Richard Koch. Living the 80/20 Way: Work Less, Worry Less, Succeed More, Enjoy More. Nicholas Brealey Publishing, London 2004. ISBN 1857883314.

[Eisermann, 2004] G. Eisermann. "Pareto, Vilfredo 1848–1923," International Encyclopedia of the Social & Behavioral Sciences, pp. 11048-11051. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7MRM-4MT09VJ-2BX&_rdoc=111&_hierId=151000072&_refWorkId=21&_explode=151000072&_fmt=summary&_orig=na&_docanchor=&_idxType=SC&view=c&_ct=148&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e1c6152199127c6e49da0b4fab6216d2 Abstract] 2004.

[Dutter, 2008] Rudolf Dutter. Statistik und Wahrscheinlichkeitsrechnung für InformatikerInnen, Scriptum, Vienna University of Technology, 2008, pp. 18-25.

=== External Link ===
[http://en.wikipedia.org/wiki/Dr._Joseph_Moses_Juran Joseph M. Juran]

[http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Pareto Chart

2008-11-12T20:24:21Z

UE-InfoVis0809 0427571: typos sources definition format

== Pareto Chart ==

=== Definition ===

[[Image:Pareto.png|thumb|''This chart is created with MS Excel and the data is hypothetical'']]
{{Definition|A '''Pareto chart''' is a histogram in which all bars are sorted in a descending order. The diagram is often accompanied by a line or curve graph which shows the cumulative value of the particular categories shown in it.}}

=== Pareto Principle ===
The Pareto principle (also known as "the 80-20 rule", "the law of the vital few" and "the principle of factor sparsity") states that, for many events, 80% of the effects come from 20% of the causes. Business management thinker [http://en.wikipedia.org/wiki/Dr._Joseph_Moses_Juran Joseph M. Juran] suggested the principle and named it after Italian economist [http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] , who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients."

=== Statistical and Mathematical Explanation ===
A histogram is a graphical representation of the frequency distribution of the data. In pareto context the data has to be ordered in a descendant way in order to match the pareto principle.

The curved graph in the Pareto Chart is actually а total frequency polygon, which is widely used in statistics. It is built by connecting the total percentage frequencies on the right edge of the bars in the histogram to each other. '''[Dutter, 2008]'''

=== Fields of use ===
The Pareto Chart could be used in many fields and aspects since it is a blueprint of a general principle. However it is most commonly referenced in the following contexts:
* QC/QM - Quality Control/Quality Management
* Microeconomics
* Statistics

=== Example ===
The following pareto chart is a short example of the Pareto problem. The chart lists the types of document complaints in a company. As you can see the sum of the first two types of complaints goes almost up to 80%. So you can basically say, that 30% (2 from 6 types) of the causes lead to 80% of the complaints in that particular company.
[[Image:Cause-analysis-tools-paret.gif|thumb|center|''Example of the pareto principle'']]

=== History ===
[http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] (July 15, 1848 – August 19, 1923), or Fritz Wilfried Pareto, was an Italian sociologist, economist, and philosopher. He introduced the concept of Pareto efficiency and helped develop the field of microeconomics. In 1906, he made the famous observation that twenty percent of the population owned eighty percent of the property in Italy, later generalised by Joseph M. Juran and others into the so-called Pareto principle (also termed the 80-20 rule) and generalised further to the concept of a Pareto distribution.

=== Bibliography ===
[Koch, 2004] Richard Koch. Living the 80/20 Way: Work Less, Worry Less, Succeed More, Enjoy More. Nicholas Brealey Publishing, London 2004. ISBN 1857883314.

[Eisermann, 2004] G. Eisermann. "Pareto, Vilfredo 1848–1923," International Encyclopedia of the Social & Behavioral Sciences, pp. 11048-11051. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7MRM-4MT09VJ-2BX&_rdoc=111&_hierId=151000072&_refWorkId=21&_explode=151000072&_fmt=summary&_orig=na&_docanchor=&_idxType=SC&view=c&_ct=148&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e1c6152199127c6e49da0b4fab6216d2 Abstract] 2004.

[Dutter, 2008] Rudolf Dutter. Statistik und Wahrscheinlichkeitsrechnung für InformatikerInnen, Scriptum, Vienna University of Technology, 2008, pp. 18-25.

=== External Link ===
[http://en.wikipedia.org/wiki/Dr._Joseph_Moses_Juran Joseph M. Juran]
[http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Hyperbolic Tree

2008-11-12T19:58:24Z

UE-InfoVis0809 0427571: definition corrected

=Hyperbolic Tree=
[[Image:Hyperbolic_tree-focus_root.png|thumb|''Figure 1: Hyperbolic Tree with it's root focused [Garcia, 2008]'']]
[[Image:Hyperbolic tree-context.png|thumb|''Figure 2: Hyperbolic Tree with a focused child [Garcia, 2008]'']]

==Definition==
{{Definition|A Hyperbolic Tree is a fisheye representation of information in order to visualize huge amount of data.}}

==A mathematical point of view==
A Hyperbolic Tree, sometimes called a Hypertree, is a visualization method based on the hyperbolic geometry. In this geometry the parallel postulate of Euclidean geometry is replaced. That parallel postulate says, that for any given line '''l''' and any point '''P''' it can only exist exactly one line which does not intersect '''l''' and runs through '''P'''. This line is called a parallel line. In a hyperbolic space these two lines would diverge. '''[Wikipedia, 2008]''' Because of this characteristic the circumference grows exponentially as a function of the circle's radius. Similarly the number of leaves in a tree grow exponentially as a function of it's depth. '''[Wikipedia, 2008]'''

==Information visualization==
A Hyperbolic Tree is a concept which makes use of the properties discussed before. It can be classified as a focus + context technique. Only a small number of data is shown on the most expansive area in and near the center. Information in this area is stretched and is the part where the focus is caught. The peripheral area of the circle is used for all other nodes - the context. Information in this part is "squeezed". '''[Pirolli et al, 2003]''' Generally a hypertree is known as a "fisheye representation of information".

==User interaction==
The root-node is placed in the center of the circle. ''[Figure 1]'' Child nodes are positioned in other fictive concentric circles. Users can click within the tree to focus the desired area. As a result the user might be presented with something like that shown in ''[Figure 2]''. Typically the part of bringing other nodes into focus, the user is shown a smooth transformation of the display. '''[Pirolli et al, 2003; Huang and Quan, 2004]'''

==Comparison==
Compared to other conventional tree browsers, the hyperbolic tree shows all of the information at once, where other techniques force the user to scroll. For this reason it could be expected, that browsing performance will increase. The answer is both yes and no. In retrieval tasks, where users simply search for specific nodes, the performance is very good. It is fuerthermore increased through strong practice effects. In comparison tasks, where users have access to nodes in different parts of the tree to compare information. In this task a Hyperbolic tree cannot aim any advantage. On tasks with poor information scent cues, tests can end up with loss of efficiency. '''[Pirolli et al, 2003]''' Other limitations in navigation efficiency occur for trees with a large number of children. Also the concept of focus+context can be lost in specific situations where the "context-part" is pushed in any corner and therefore meaningless. '''[Huang and Quan, 2004]'''

==Bibliography==
'''[Wikipedia, 2008]''' Wikipedia contributors, Hyperbolic Tree, ''Wikipedia, The Free Encyclopedia.'', Retrieved at: November, 6 2008. http://en.wikipedia.org/wiki/Hyperbolic_tree

'''[Wikipedia, 2008]''' Wikipedia contributors, Hyperbolic Geometry, ''Wikipedia, The Free Encyclopedia.'', Retrieved at: November, 6 2008. http://en.wikipedia.org/wiki/Hyperbolic_geometry

'''[Pirolli et al, 2003]''' Peter Pirolli and Stuart K. Card and Mija M. Van Der Wege, The effects of information scent on visual search in the hyperbolic tree browser in ''ACM Trans. Comput.-Hum. Interact.'', pages 20-53, 2003, ACM

'''[Huang and Quan, 2004]''' Mao Lin Huang and Wu Quan, 21DF-browser: a multiple fisheye distortion technique for visualizing and navigating hierarchies with large number of leaves, In ''Information Visualisation, 2004. IV 2004. Proceedings. Eighth International Conference on'', pages 277-284, July 2004

'''[Garcia, 2008]''' Nicolas Garcia, JavaScript Information Visualization, Retrieved at: November, 6 2008. http://blog.thejit.org/wp-content/jit-1.0a/examples/hypertree.html<ref>Colors were changed, inverted to suit wiki better</ref>

==Footnotes and references==
<references/>

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Hyperbolic Tree

2008-11-07T12:19:59Z

UE-InfoVis0809 0427571: formatting

=Hyperbolic Tree=
[[Image:Hyperbolic_tree-focus_root.png|thumb|''Picture 1'']]
[[Image:Hyperbolic tree-context.png|thumb|''Picture 2'']]

==Definition==
a "'fisheye representation of information'".
based on the hyperbolic geometry.
focus + context technique.

==A mathematical point of view==
A Hyperbolic Tree, sometimes called a Hypertree, is a visualization method based on the hyperbolic geometry. In this geometry the parallel postulate of Euclidean geometry is replaced. That parallel postulate says, that for any given line '''l''' and any point '''P''' it can only exist exactly one line which does not intersect '''l''' and runs through '''P'''. This line is called a parallel line. In a hyperbolic space these two lines would diverge. '''[wiki 2]''' Because of this characteristic the circumference grows exponentially as a function of the circle's radius. Similarly the number of leafs/leaves in a tree grow exponentially as a function of it's depth. '''[wiki 1]'''

==Information visualization==
A Hyperbolic Tree is a concept which makes use of the properties discussed before. It can be classified as a focus + context technique. Only a small number of data is shown on the most expansive area in and near the center. Information in this area is stretched and is the part where the focus is caught. The peripheral area of the circle is used for all other nodes - the context. Information in this part is "squeezed". '''[Pirolli et al, 2003]''' Generally a hypertree is known as a "fisheye representation of information".

==User interaction==
The root-node is placed in the center of the circle. ''[Picture 1]'' Child nodes are positioned in other fictive concentric circles. Users can click within the tree to focus the desired area. As a result the user might be presented with something like that shown in ''[Picture 2]''.

==Comparison==
Compared to other conventional tree browsers, the hyperbolic tree shows all of the information at once, where other techniques force the user to scroll. For this reason it could be expected, that browsing performance will increase. The answer is both yes and no. In retrieval tasks, where users simply search for specific nodes, the performance is very good. It is fuerthermore increased through strong practice effects. In comparison tasks, where users have access to nodes in different parts of the tree to compare information. In this task a Hyperbolic tree cannot aim any advantage. On tasks with poor information scent cues, tests can end up with loss of efficiency. '''[Pirolli et al, 2003]'''

==Bibliography==
'''[wiki 1]''' X, Hyperbolic Tree, Y, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_tree
'''[wiki 2]''' Z, Hyperbolic Geometry, U, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_geometry

'''[Pirolli et al, 2003]''' Peter Pirolli and Stuart K. Card and Mija M. Van Der Wege, The effects of information scent on visual search in the hyperbolic tree browser in ''ACM Trans. Comput.-Hum. Interact.'', pages 20-53, 2003, ACM
'''[pic]''' X, Y, 2008.6.11, http://blog.thejit.org/wp-content/jit-1.0a/examples/hypertree.html<ref>Colors were changed, inverted to suit wiki better</ref>

==Footnotes and references==
<references/>

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Hyperbolic Tree

2008-11-07T12:18:56Z

UE-InfoVis0809 0427571: layout

=Hyperbolic Tree=
[[Image:Hyperbolic_tree-focus_root.png|thumb|''Picture 1'']]
[[Image:Hyperbolic tree-context.png|thumb|''Picture 2'']]

==Definition==
a "'fisheye representation of information'".
based on the hyperbolic geometry.
focus + context technique.

==A mathematical point of view==
A Hyperbolic Tree, sometimes called a Hypertree, is a visualization method based on the hyperbolic geometry. In this geometry the parallel postulate of Euclidean geometry is replaced. That parallel postulate says, that for any given line '''l''' and any point '''P''' it can only exist exactly one line which does not intersect '''l''' and runs through '''P'''. This line is called a parallel line. In a hyperbolic space these two lines would diverge. '''[wiki 2]''' Because of this characteristic the circumference grows exponentially as a function of the circle's radius. Similarly the number of leafs/leaves in a tree grow exponentially as a function of it's depth. '''[wiki 1]'''

==Information visualization==
A Hyperbolic Tree is a concept which makes use of the properties discussed before. It can be classified as a focus + context technique. Only a small number of data is shown on the most expansive area in and near the center. Information in this area is stretched and is the part where the focus is caught. The peripheral area of the circle is used for all other nodes - the context. Information in this part is "squeezed". '''[Pirolli et al, 2003]''' Generally a hypertree is known as a "fisheye representation of information".

==User interaction==
The root-node is placed in the center of the circle. ''[Picture 1]'' Child nodes are positioned in other fictive concentric circles. Users can click within the tree to focus the desired area. As a result the user might be presented with something like that shown in ''[Picture 2]''.

==Comparison==
Compared to other conventional tree browsers, the hyperbolic tree shows all of the information at once, where other techniques force the user to scroll. For this reason it could be expected, that browsing performance will increase. The answer is both yes and no. In retrieval tasks, where users simply search for specific nodes, the performance is very good. It is fuerthermore increased through strong practice effects. In comparison tasks, where users have access to nodes in different parts of the tree to compare information. In this task a Hyperbolic tree cannot aim any advantage. On tasks with poor information scent cues, tests can end up with loss of efficiency. '''[Pirolli et al, 2003]'''

==Bibliography==
'''[wiki 1]''' X, Hyperbolic Tree, Y, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_tree
'''[wiki 2]''' Z, Hyperbolic Geometry, U, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_geometry

'''[Pirolli et al, 2003]''' Peter Pirolli and Stuart K. Card and Mija M. Van Der Wege, The effects of information scent on visual search in the hyperbolic tree browser in '''ACM Trans. Comput.-Hum. Interact.''', pages 20-53, 2003, ACM
'''[pic]''' X, Y, 2008.6.11, http://blog.thejit.org/wp-content/jit-1.0a/examples/hypertree.html<ref>Colors were changed, inverted to suit wiki better</ref>

==Footnotes and references==
<references/>

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Hyperbolic Tree

2008-11-07T12:17:51Z

UE-InfoVis0809 0427571: formatting and layout

=Hyperbolic Tree=
[[Image:Hyperbolic_tree-focus_root.png|thumb|''Picture 1'']]
[[Image:Hyperbolic tree-context.png|thumb|''Picture 2'']]

==Definition==
a "'fisheye representation of information'".
based on the hyperbolic geometry.
focus + context technique.

==A mathematical point of view==
A Hyperbolic Tree, sometimes called a Hypertree, is a visualization method based on the hyperbolic geometry. In this geometry the parallel postulate of Euclidean geometry is replaced. That parallel postulate says, that for any given line '''l''' and any point '''P''' it can only exist exactly one line which does not intersect '''l''' and runs through '''P'''. This line is called a parallel line. In a hyperbolic space these two lines would diverge. '''[wiki 2]''' Because of this characteristic the circumference grows exponentially as a function of the circle's radius. Similarly the number of leafs/leaves in a tree grow exponentially as a function of it's depth. '''[wiki 1]'''

==Information visualization==
A Hyperbolic Tree is a concept which makes use of the properties discussed before. It can be classified as a focus + context technique. Only a small number of data is shown on the most expansive area in and near the center. Information in this area is stretched and is the part where the focus is caught. The peripheral area of the circle is used for all other nodes - the context. Information in this part is "squeezed". '''[Pirolli et al, 2003]''' Generally a hypertree is known as a "fisheye representation of information".

==User interaction==
The root-node is placed in the center of the circle. ''[Picture 1]'' Child nodes are positioned in other fictive concentric circles. Users can click within the tree to focus the desired area. As a result the user might be presented with something like that shown in ''[Picture 2]''.

==Comparison==
Compared to other conventional tree browsers, the hyperbolic tree shows all of the information at once, where other techniques force the user to scroll. For this reason it could be expected, that browsing performance will increase. The answer is both yes and no. In retrieval tasks, where users simply search for specific nodes, the performance is very good. It is fuerthermore increased through strong practice effects. In comparison tasks, where users have access to nodes in different parts of the tree to compare information. In this task a Hyperbolic tree cannot aim any advantage. On tasks with poor information scent cues, tests can end up with loss of efficiency. '''[Pirolli et al, 2003]'''

==Bibliography==
'''[wiki 1]''' X, Hyperbolic Tree, Y, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_tree
'''[wiki 2]''' Z, Hyperbolic Geometry, U, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_geometry
'''[Pirolli et al, 2003]''' Peter Pirolli and Stuart K. Card and Mija M. Van Der Wege, The effects of information scent on visual search in the hyperbolic tree browser in '''ACM Trans. Comput.-Hum. Interact.''', pages 20-53, 2003, ACM
'''[pic]''' X, Y, 2008.6.11, http://blog.thejit.org/wp-content/jit-1.0a/examples/hypertree.html<ref>Colors were changed, inverted to suit wiki better</ref>

==Footnotes and references==
<references/>

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Hyperbolic Tree

2008-11-07T12:14:11Z

UE-InfoVis0809 0427571: structural changes, typos, grammar, layout and references. Sources still not perfected.

=Hyperbolic Tree=
[[Image:Hyperbolic_tree-focus_root.png|thumb|''Picture 1'']]
[[Image:Hyperbolic tree-context.png|thumb|''Picture 2'']]

==Definition==
a "fisheye representation of information".
based on the hyperbolic geometry.
focus + context technique.

==A mathematical point of view==
A Hyperbolic Tree, sometimes called a Hypertree, is a visualization method based on the hyperbolic geometry. In this geometry the parallel postulate of Euclidean geometry is replaced. That parallel postulate says, that for any given line ''l'' and any point ''P'' it can only exist exactly one line which does not intersect ''l'' and runs through ''P''. This line is called a parallel line. In a hyperbolic space these two lines would diverge. ''[wiki 2]'' Because of this characteristic the circumference grows exponentially as a function of the circle's radius. Similarly the number of leafs/leaves in a tree grow exponentially as a function of it's depth. ''[wiki 1]''

==Information visualization==
A Hyperbolic Tree is a concept which makes use of the properties discussed before. It can be classified as a focus + context technique. Only a small number of data is shown on the most expansive area in and near the center. Information in this area is stretched and is the part where the focus is caught. The peripheral area of the circle is used for all other nodes - the context. Information in this part is "squeezed". ''[Pirolli et al, 2003]'' Generally a hypertree is known as a "fisheye representation of information".

==User interaction==
The root-node is placed in the center of the circle. [See picture 1] Child nodes are positioned in other fictive concentric circles. Users can click within the tree to focus the desired area. As a result the user might be presented with something like that shown in [picture 2].

==Comparison==
Compared to other conventional tree browsers, the hyperbolic tree shows all of the information at once, where other techniques force the user to scroll. For this reason it could be expected, that browsing performance will increase. The answer is both yes and no. In retrieval tasks, where users simply search for specific nodes, the performance is very good. It is fuerthermore increased through strong practice effects. In comparison tasks, where users have access to nodes in different parts of the tree to compare information. In this task a Hyperbolic tree cannot aim any advantage. On tasks with poor information scent cues, tests can end up with loss of efficiency. [pdf]

==Bibliography==
''[wiki 1]'' X, Hyperbolic Tree, Y, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_tree
''[wiki 2]'' Z, Hyperbolic Geometry, U, 2008.6.11, http://en.wikipedia.org/wiki/Hyperbolic_geometry
''[Pirolli et al, 2003]'' Peter Pirolli and Stuart K. Card and Mija M. Van Der Wege, The effects of information scent on visual search in the hyperbolic tree browser in '''ACM Trans. Comput.-Hum. Interact.''', pages 20-53, 2003, ACM
''[pic]'' X, Y, 2008.6.11, http://blog.thejit.org/wp-content/jit-1.0a/examples/hypertree.html<ref>Colors were changed, inverted to suit wiki better</ref>

==Footnotes and references==
<references/>

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Pareto Chart

2008-11-07T10:35:41Z

UE-InfoVis0809 0427571: typo

== Pareto Chart ==

=== Definition ===

[[Image:Pareto.png|thumb|''This chart is created with MS Excel and the data is hypotetical'']]
A '''Pareto chart''' is a histogram in which all bars are sorted in a descending order. The diagram is often accompanied by a line or curve graph which shows the cumulative value of the particular categories shown in it.

=== Pareto Principle ===
The Pareto principle (also known as "the 80-20 rule", "the law of the vital few" and "the principle of factor sparsity") states that, for many events, 80% of the effects come from 20% of the causes. Business management thinker [http://en.wikipedia.org/wiki/Dr._Joseph_Moses_Juran Joseph M. Juran] suggested the principle and named it after Italian economist [http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] , who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients."

=== Statistical and Mathematical Explanation ===
A histogram is a graphical representation of the frequency distribution of the data. In pareto context the data has to be ordered in a descendant way in order to match the pareto principal.

The curved graph in the Pareto Chart is actually а total frequency polygon, which is widely used in statistics. It is built by connecting the total percentage frequencies on the right edge of the bars in the histogram to each other. '''[Dutter, 2008]'''

=== Fields of use ===
The Pareto Chart could be used in many fields and aspects since it is a blueprint of a general principle. However it is most commonly referenced in the following contexts:
* QC/QM - Quality Control/Quality Management
* Microeconomics
* Statistics

=== Example ===
The following pareto chart is a short example of the pareto problem. The chart lists the types of document complaints in a company. As you can see the sum of the first two types of complaints goes almost up to 80%. So you can basically say, that 30% (2 from 6 types) of the causes lead to 80% of the complaints in that particular company.
[[Image:Cause-analysis-tools-paret.gif|thumb|center|''Example of the pareto principal'']]

=== History ===
[http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] (July 15, 1848 – August 19, 1923), or Fritz Wilfried Pareto, was an Italian sociologist, economist, and philosopher. He introduced the concept of Pareto efficiency and helped develop the field of microeconomics. In 1906, he made the famous observation that twenty percent of the population owned eighty percent of the property in Italy, later generalised by Joseph M. Juran and others into the so-called Pareto principle (also termed the 80-20 rule) and generalised further to the concept of a Pareto distribution.

=== Bibliography ===
[Koch, 2004] Richard Koch. Living the 80/20 Way: Work Less, Worry Less, Succeed More, Enjoy More. Nicholas Brealey Publishing, London 2004. ISBN 1857883314.

[Eisermann, 2004] "Pareto, Vilfredo 1848–1923," International Encyclopedia of the Social & Behavioral Sciences, pp. 11048-11051. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7MRM-4MT09VJ-2BX&_rdoc=111&_hierId=151000072&_refWorkId=21&_explode=151000072&_fmt=summary&_orig=na&_docanchor=&_idxType=SC&view=c&_ct=148&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e1c6152199127c6e49da0b4fab6216d2 Abstract] 2004.

[Dutter, 2008] Rudolf Dutter. Statistik und Wahrscheinlichkeitsrechnung für InformatikerInnen, Scriptum, Vienna University of Technology, 2008, pp. 18-25.

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Pareto Chart

2008-11-06T21:20:47Z

UE-InfoVis0809 0427571: removed eperimental references

== Pareto Chart ==

=== Definition ===

[[Image:Pareto.png|thumb|''This chart is created with MS Excel and the data is hypotetical'']]
A '''Pareto chart''' is a histogram in which all bars are sorted in a descending order. The diagram is often accompanied by a line or curve graph which shows the cumulative value of the particular categories shown in it.

=== Pareto Principal ===
The Pareto principle (also known as "the 80-20 rule", "the law of the vital few" and "the principle of factor sparsity") states that, for many events, 80% of the effects come from 20% of the causes. Business management thinker [http://en.wikipedia.org/wiki/Dr._Joseph_Moses_Juran Joseph M. Juran] suggested the principle and named it after Italian economist [http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] , who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients."

=== Statistical and Mathematical Explanation ===
A histogram is a graphical representation of the frequency distribution of the data. In pareto context the data has to be ordered in a descendant way in order to match the pareto principal.

The curved graph in the Pareto Chart is actually а total frequency polygon, which is widely used in statistics. It is built by connecting the total percentage frequencies on the right edge of the bars in the histogram to each other. '''[Dutter, 2008]'''

=== Fields of use ===
The Pareto Chart could be used in many fields and aspects since it is a blueprint of a general principle. However it is most commonly referenced in the following contexts:
* QC/QM - Quality Control/Quality Management
* Microeconomics
* Statistics

=== History ===
[http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] (July 15, 1848 – August 19, 1923), or Fritz Wilfried Pareto, was an Italian sociologist, economist, and philosopher. He introduced the concept of Pareto efficiency and helped develop the field of microeconomics. In 1906, he made the famous observation that twenty percent of the population owned eighty percent of the property in Italy, later generalised by Joseph M. Juran and others into the so-called Pareto principle (also termed the 80-20 rule) and generalised further to the concept of a Pareto distribution.

=== Bibliography ===
[Koch, 2004] Richard Koch. Living the 80/20 Way: Work Less, Worry Less, Succeed More, Enjoy More. Nicholas Brealey Publishing, London 2004. ISBN 1857883314.

[Eisermann, 2004] "Pareto, Vilfredo 1848–1923," International Encyclopedia of the Social & Behavioral Sciences, pp. 11048-11051. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7MRM-4MT09VJ-2BX&_rdoc=111&_hierId=151000072&_refWorkId=21&_explode=151000072&_fmt=summary&_orig=na&_docanchor=&_idxType=SC&view=c&_ct=148&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e1c6152199127c6e49da0b4fab6216d2 Abstract] 2004.

[Dutter, 2008] Rudolf Dutter. Statistik und Wahrscheinlichkeitsrechnung für InformatikerInnen, Scriptum, Vienna University of Technology, 2008, pp. 18-25.

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1 - Pareto Chart

2008-11-06T21:09:24Z

UE-InfoVis0809 0427571: typos, grammar and test of using references

== Pareto Chart ==

=== Definition ===

[[Image:Pareto.png|thumb|''This chart is created with MS Excel and the data is hypotetical'']]
A '''Pareto chart''' is a histogram in which all bars are sorted in a descending order. The diagram is often accompanied by a line or curve graph which shows the cumulative value of the particular categories shown in it.

=== Pareto Principal ===
The Pareto principle (also known as "the 80-20 rule", "the law of the vital few" and "the principle of factor sparsity") states that, for many events, 80% of the effects come from 20% of the causes. Business management thinker [http://en.wikipedia.org/wiki/Dr._Joseph_Moses_Juran Joseph M. Juran] suggested the principle and named it after Italian economist [http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] , who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients."

=== Statistical and Mathematical Explanation ===
A histogram is a graphical representation of the frequency distribution of the data. In pareto context the data has to be ordered in a descendant way in order to match the pareto principal.

The curved graph in the Pareto Chart is actually а total frequency polygon, which is widely used in statistics. It is built by connecting the total percentage frequencies on the right edge of the bars in the histogram to each other '''[Dutter, 2008]''' oder <ref>[Dutter, 2008] Rudolf Dutter. Statistik und Wahrscheinlichkeitsrechnung für InformatikerInnen, Scriptum, Vienna University of Technology, 2008, pp. 18-25.</ref>.

=== Fields of use ===
The Pareto Chart could be used in many fields and aspects since it is a blueprint of a general principle. However it is most commonly referenced in the following contexts:
* QC/QM - Quality Control/Quality Management
* Microeconomics
* Statistics

=== History ===
[http://en.wikipedia.org/wiki/Vilfredo_Pareto Vilfredo Federico Damaso Pareto] (July 15, 1848 – August 19, 1923), or Fritz Wilfried Pareto, was an Italian sociologist, economist, and philosopher. He introduced the concept of Pareto efficiency and helped develop the field of microeconomics. In 1906, he made the famous observation that twenty percent of the population owned eighty percent of the property in Italy, later generalised by Joseph M. Juran and others into the so-called Pareto principle (also termed the 80-20 rule) and generalised further to the concept of a Pareto distribution.

=== Bibliography ===
[Koch, 2004] Richard Koch. Living the 80/20 Way: Work Less, Worry Less, Succeed More, Enjoy More. Nicholas Brealey Publishing, London 2004. ISBN 1857883314.

[Eisermann, 2004] "Pareto, Vilfredo 1848–1923," International Encyclopedia of the Social & Behavioral Sciences, pp. 11048-11051. [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7MRM-4MT09VJ-2BX&_rdoc=111&_hierId=151000072&_refWorkId=21&_explode=151000072&_fmt=summary&_orig=na&_docanchor=&_idxType=SC&view=c&_ct=148&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e1c6152199127c6e49da0b4fab6216d2 Abstract] 2004.

[Dutter, 2008] Rudolf Dutter. Statistik und Wahrscheinlichkeitsrechnung für InformatikerInnen, Scriptum, Vienna University of Technology, 2008, pp. 18-25.

=oder=

==Footnotes and references==
<references/>

Teaching talk:TUW - UE InfoVis WS 2008/09 - Gruppe 10

2008-11-03T17:12:38Z

UE-InfoVis0809 0427571:

'''vorläufige Bewertung: 4 Punkte'''

Begründung:
*Auf eurer Gruppenseite fehlt Stub „Aufgabe 0“.

-- [[User:Martha_Kaltenecker|Martha Kaltenecker]] 19:26, 29 October 2008 (CET)

Am 1.11 habe ich die Seite aufdatiert. "Aufgabe 0" findet man jetzt dort.

-- [[User:UE-InfoVis0809 0427571|UE-InfoVis0809 0427571]] 18:12, 3 November 2008 (CET)

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 0

2008-11-01T07:45:03Z

UE-InfoVis0809 0427571: New page: * Gruppenseite angelegt Gruppe 10 (Debong, Fischl, Petrov) * Userpages angelegt Debong, Fredrik [[User...

* Gruppenseite angelegt
[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10|Gruppe 10 (Debong, Fischl, Petrov)]]

* Userpages angelegt
[[User:UE-InfoVis0809_0427571|Debong, Fredrik]]
[[User:UE-InfoVis0809_0326850|Fischl, Christian]]
[[User:UE-InfoVis0809_0508142|Petrov, Peter]]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10

2008-11-01T07:39:41Z

UE-InfoVis0809 0427571:

==Gruppenmitglieder==
*[[User:UE-InfoVis0809_0427571|Debong, Fredrik]]
*[[User:UE-InfoVis0809_0326850|Fischl, Christian]]
*[[User:UE-InfoVis0809_0508142|Petrov, Peter]]

==Aufgaben==
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 0|Aufgabe 0]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1|Aufgabe 1]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 2|Aufgabe 2]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 3|Aufgabe 3]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 4|Aufgabe 4]]

Teaching:TUW - UE InfoVis WS 2008/09

2008-11-01T07:29:37Z

UE-InfoVis0809 0427571: uppercase bei den nachnamen von gruppe 10 umgestellt, laut news gefordert

[[Image:Aigner03infovis ue.gif]] <big>WS 2008/09</big>

'''LVA Nr:''' 188.308 ([http://tuwis.tuwien.ac.at/lva/tuwien/188308 TUWIS++ Seite])

'''LVA Homepage:''' http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/index.html

'''Leitung:''' [[Gschwandtner, Theresia|Theresia Gschwandtner]] [gschwandtner (at) ifs.tuwien.ac.at] 
'''Tutorin:''' [[User:Martha_Kaltenecker|Martha Kaltenecker]] [e0125193 (at) student.tuwien.ac.at]

== Gruppen ==

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 01|Gruppe 01 (KARALL, REGNER, UGUR)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 02|Gruppe 02 (Beranek, Goldmann, Schiffl)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 03|Gruppe 03 (DINCER, MAYER, MOSER)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 05|Gruppe 05 (KUNTNER, PINJO, WENDELIN)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 06|Gruppe 06 (Frank, Mayer, Rind)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 07|Gruppe 07 (LUCKNER, HEIL, ANGERBAUER)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08|Gruppe 08 (HAMMERL, MORGENBESSER, TRAGUST)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 09|Gruppe 09 (Szolarz, Schlegel, <???>)]]

[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10|Gruppe 10 (Debong, Fischl, Petrov)]]

== News / Bemerkungen ==
Liebe TeilnehmerInnen! 
Die Beurteilung der Aufgabe 0 findet Ihr auf der "Discussion Page" Eurer Gruppenseite.
Es besteht die Möglichkeit, Euren aktuellen Punktestand (Maximum: 5 Punkte)
bis einschließlich Di., den 4. 11. 2008 23:59 zu verbessern. 
-- [[User:Martha_Kaltenecker|Martha Kaltenecker]] 19:49, 29 October 2008 (CEST)

Liebe TeilnehmerInnen! 
Die auszuarbeitenden InfoVis Begriffe für Aufgabe 1 findet ihr bereits auf Eurer Gruppenseite
(sofern diese schon angelegt ist) unter "Aufgabe 1". 
-- [[User:Martha_Kaltenecker|Martha Kaltenecker]] 19:06, 27 October 2008 (CEST)

Liebe TeilnehmerInnen! 
Alle diejenigen, die nur ungern ihr eigenes Foto auf eine öffentliche Seite stellen,
möchte ich darauf hinweisen, dass der Übungsinhalt das Hochladen und Einfügen EINES Fotos (Bilddatei) ist. 
[[User:UE-InfoVis0809 0425160|Katharina-Anna Wendelin]] hat somit die Aufgabe auch korrekt gelöst! ;-) 
-- [[User:TGschwandtner|Theresia Gschwandtner]] 08:53, 24 October 2008 (CEST)

Liebe TeilnehmerInnen! 
Um diese Seite einheitlich zu gestalten (auch bezüglich der Vorjahre), schlage ich vor die Nachnahmen
der Gruppenmitglieder in Klammer neben der Gruppe anzugeben, 
z.B.: Gruppe XX (Maier, Müller, Mustermann). 
-- [[User:TGschwandtner|Theresia Gschwandtner]] 10:30, 22 October 2008 (CEST)

User:UE-InfoVis0809 0427571

2008-10-21T12:23:33Z

UE-InfoVis0809 0427571:

==Info==
[[Image:Jagmedfamilj.jpg|thumb|''Fredrik Debong and his family, Sweden 2007'']]

{| border="0" cellspacing="1"
!align="left"|
* Name:
|Fredrik Debong
|-
!align="left"|
* Sknz:
|033533
|-
!align="left"|
* Mnr:
|0427571
|-
!align="left"|
* Email:
|fredrik (at) debong.se
|-
!align="left"|
* Group:
|[[Teaching:TUW_-_UE_InfoVis_WS_2008/09_-_Gruppe_10|10]]
|}

==Background==
After many years of questioning the fact that not even ONE wiki held a page on the intriguing subject of his persona, a course at the [http://www.tuwien.ac.at Technical University of Vienna]<ref>Which is really bad English... should be ''University of Technology of Vienna'' or something</ref> forced him to actually write one on his own. Yes, that is true, well observed, it's still just a userpage... he still is a nobody... boohoo

==Footnotes and references==
<references/>

User:UE-InfoVis0809 0427571

2008-10-21T12:22:11Z

UE-InfoVis0809 0427571:

==Info==
[[Image:Jagmedfamilj.jpg|thumb|''Fredrik Debong and his family, Sweden 2007'']]

{| border="0" cellspacing="1"
!align="left"|
* Name:
|Fredrik Debong
|-
!align="left"|
* Sknz:
|033533
|-
!align="left"|
* Mnr:
|0427571
|-
!align="left"|
* Email:
|fredrik (at) debong.se
|-
!align="left"|
* Group:
|[[Teaching:TUW_-_UE_InfoVis_WS_2008/09_-_Gruppe_10|10]]
|}

==Background==
After many years of questioning the fact that not even ONE wiki held a page on the intriguing subject of his persona, a course at the [http://www.tuwien.ac.at Technical University of Vienna]<ref>Which is really bad English... should be ''University of Technology of Vienna'' or something</ref> forced him to actually write one on his own. Yes, that is true, well observed, it's still just a userpage... but anyways!

==Footnotes and references==
<references/>

User:UE-InfoVis0809 0427571

2008-10-21T12:21:22Z

UE-InfoVis0809 0427571:

=Mr. UE-InfoVis0809 0427571=
==Info==
[[Image:Jagmedfamilj.jpg|thumb|''Fredrik Debong and his family, Sweden 2007'']]

{| border="0" cellspacing="1"
!align="left"|
* Name:
|Fredrik Debong
|-
!align="left"|
* Sknz:
|033533
|-
!align="left"|
* Mnr:
|0427571
|-
!align="left"|
* Email:
|fredrik (at) debong.se
|-
!align="left"|
* Group:
|[[Teaching:TUW_-_UE_InfoVis_WS_2008/09_-_Gruppe_10|10]]
|}

==Background==
After many years of questioning the fact that not even ONE wiki held a page on the intriguing subject of his persona, a course at the [http://www.tuwien.ac.at Technical University of Vienna]<ref>Which is really bad English... should be ''University of Technology of Vienna'' or something</ref> forced him to actually write one on his own. Yes, that is true, well observed, it's still just a userpage... but anyways!

==Footnotes and references==
<references/>

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10

2008-10-20T10:33:47Z

UE-InfoVis0809 0427571:

==Gruppenmitglieder==
*[[User:UE-InfoVis0809_0427571|Debong, Fredrik]]
*[[User:UE-InfoVis0809_XX|Fischl, Christian]]
*[[User:UE-InfoVis0809_XX|Petrov, Peter]]

==Aufgaben==
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1|Aufgabe 1]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 2|Aufgabe 2]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 3|Aufgabe 3]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 4|Aufgabe 4]]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10

2008-10-20T09:47:06Z

UE-InfoVis0809 0427571: info ueber gruppe 10, Fredrik Debong, Peter Petrov und Christian Fischl

==Gruppenmitglieder==
*[[User:UE-InfoVis0809_0427571|Debong, Fredrik]]
*[[User:UE-InfoVis0809_XX|Fischl, Christian]]
*[[User:UE-InfoVis0809_XX|Petrov, Peter]]

==Aufgaben==
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1|Aufgabe 1]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1|Aufgabe 2]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1|Aufgabe 3]]
*[[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 10 - Aufgabe 1|Aufgabe 4]]

User:UE-InfoVis0809 0427571

2008-10-20T09:39:01Z

UE-InfoVis0809 0427571: Short profile on 0427571,Fredrik Debong

==Info==
{| style="border:1px solid black;" cellspacing="1" border="1"
!Name:
|Fredrik Debong
|-
!Image:
|[[Image:Jagmedfamilj.jpg|thumb|''Fredrik Debong and his family, Sweden 2007'']]
|-
!Sknz:
|033533
|-
!Mnr:
|0427571
|-
!Email:
|fredrik (at) debong.se
|-
!Group:
|[[Teaching:TUW_-_UE_InfoVis_WS_2008/09_-_Gruppe_10|Gruppe 10]]
|}

==Background==
After many years of questioning the fact that not even ONE wiki held a page on the intriguing subject of his persona, a course at the [http://www.tuwien.ac.at Technical University of Vienna]<ref>Which is really bad English... should be ''University of technology, Vienna''</ref> forced him to actually write one on his own. Yes, that is true, well observed, it's still just a userpage... but anyways!

==Footnotes and references==
<references/>