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| | == Authors == |
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| *[[Keim,_Daniel|Daniel Keim]] <br/> | | *[[Keim%2C_Daniel|Daniel Keim]] <br/> |
| *[[Schneidewind,_Jörn|Jörn Schneidewind]]<br/> | | *[[Schneidewind%2C_Jörn|Jörn Schneidewind]]<br/> |
| *[[Sips,_Mike|Mike Sips]]<br/> | | *[[Sips%2C_Mike|Mike Sips]]<br/> |
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| CircleView showing stock prices of 240 stocks from the S | | CircleView showing stock prices of 240 stocks from the S&P 500 over 6 months (120 business days). Each Segment represents a single stock and the subsegments represent stock prices. The most actual stock price are shown in the middle of the circle at full detail. For older stock prices the multiresolution approach presents average prices per week/month/year (outside of the circle). <br/> |
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| | [[Image:Circleview_stockmarket.jpg]] <br/> |
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| | == Suitable Datatypes == |
| | Suitable Datatypes for this visualization technique are (fast) changing streams of data. |
| | |
| | == Important Citations == |
| | {{Quotation|The analysis of this kind of data is an important and challenging task, since analysts are interested in patterns, correlations or exceptions in the data, in order to identify bottlenecks, critical process states or any other interesting information hidden in the data.| [Keim, D. et al., 2004]}} |
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| | {{Quotation|In real time data streams it is important to analyze the data very fast, usually on the fly, and present the results in a meaningful andintuitive way to enable the user to quickly identify the important information, and to react on critical process states or alarming incidents.| [Keim, D. et al., 2004]}} |
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| | == Internal Links == |
| | *[[Treemap]] |
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| | == References == |
| | [Keim, D. et al. 2004] [http://portal.acm.org/citation.cfm?id=989891&dl=&coll=&CFID=15151515&CFTOKEN=6184618 Keim et al. CircleView: a new approach for visualizing time-related multidimensional data sets.] In ''JUCS Special Issue on Visual Data Mining'', pages 179-182, Gallipoli, Italy, 2004: ACM Press. |
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| | [Keim, D. et al. 2004] [http://www.jucs.org/jucs_11_11/scalable_visual_data_exploration Keim et al. Scalable Visual Data Exploration of Large Data Sets via MultiResolution.] In ''Proceedings of the working conference on Advanced visual interfaces'', Vol. 11, No. 11, pp. 1766-1779, 11, 2005. |
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| | [[Category:Techniques]] |
Authors
Short description
CircleView is a new approach for visualizing multidimensional time-referenced data sets. Due to the fact, that Continuous data is changing their characteristics over time, an appropriate visualization method is essential.
Therefore this new technique is a combination of hierarchical visualization techniques, such as treemaps, and circular layout techniques, such as Pie Charts and Circle Segments.
For users interested in analyzing such kind of data it is very important to identify patterns, exceptions and similarities, which is the main purpose this new visualization approach is developed for. CircleView supports the visualization of the changing characteristics over time to observe changes in the data.
Therefore CircleView provides an intuitive and easy to understand visualization interface, which enables the user to gather all the information needed for analyzation. Additionally the application enables user interaction, such as different ordering options of the data, filtering methods and the possibility to define the period of time and speed of animation, which is visualized, to show both, real-time data and historical data.
Furthermore it is possible for the user to explore correlations and exceptions in the data, which is achieved by using similarity algorithms and ordering algorithms.
So CircleView enables the user with every needed tool for an effective exploratory data analysis.
Presenting data in an interactive, graphical form often fosters new insights, encouraging the formation and validation of new hypotheses to the end of better problem solving and gaining deeper domain knowledge.
[Keim, D. et al., 2004]
Figures
CircleView showing the evolution of multiple attributes over time.
Illustration of a single CircleView segment: Evolution of the time events from the edge to the center.
Combining Multi-level CircleView Displays showing the evolution of multiple attributes over time.
CircleView showing stock prices of 240 stocks from the S&P 500 over 6 months (120 business days). Each Segment represents a single stock and the subsegments represent stock prices. The most actual stock price are shown in the middle of the circle at full detail. For older stock prices the multiresolution approach presents average prices per week/month/year (outside of the circle).
Suitable Datatypes
Suitable Datatypes for this visualization technique are (fast) changing streams of data.
Important Citations
The analysis of this kind of data is an important and challenging task, since analysts are interested in patterns, correlations or exceptions in the data, in order to identify bottlenecks, critical process states or any other interesting information hidden in the data.
[Keim, D. et al., 2004]
In real time data streams it is important to analyze the data very fast, usually on the fly, and present the results in a meaningful andintuitive way to enable the user to quickly identify the important information, and to react on critical process states or alarming incidents.
[Keim, D. et al., 2004]
Internal Links
References
[Keim, D. et al. 2004] Keim et al. CircleView: a new approach for visualizing time-related multidimensional data sets. In JUCS Special Issue on Visual Data Mining, pages 179-182, Gallipoli, Italy, 2004: ACM Press.
[Keim, D. et al. 2004] Keim et al. Scalable Visual Data Exploration of Large Data Sets via MultiResolution. In Proceedings of the working conference on Advanced visual interfaces, Vol. 11, No. 11, pp. 1766-1779, 11, 2005.