UncertaintyAware Data Transformations for Collaborative Reasoning KwanLiu Ma

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Uncertainty-Aware Data Transformations for Collaborative Reasoning Kwan-Liu Ma University of California, Davis

Uncertainty-Aware Data Transformations for Collaborative Reasoning Kwan-Liu Ma University of California, Davis

Project Overview • Two years (2008 – 2010) • PI: Kwan-Liu Ma • Participants:

Project Overview • Two years (2008 – 2010) • PI: Kwan-Liu Ma • Participants: Dr. Carlos Correa, postdoctoral researcher Yu-Hsuan Chan and Tarik Crnovrsanin graduate students • Research results include publications and software • Participated in two VAST contests • Project home page: http: //vis. cs. ucdavis. edu/NSF/CCS 080896

Objectives • Develop mathematical foundation for uncertainty quantification, propagation and aggregation in visual analysis

Objectives • Develop mathematical foundation for uncertainty quantification, propagation and aggregation in visual analysis • Visual mapping of uncertainty to enable analysts to gain insight from the data with correct confidence level • Support collaborative reasoning – Incorporating and conveying uncertainty – Increasing confidence level (i. e. , certainty) with collective knowledge and findings

A Framework for Uncertainty-Aware Visual Analysis • Formalize the representation of uncertainty and basic

A Framework for Uncertainty-Aware Visual Analysis • Formalize the representation of uncertainty and basic operations • Quantify, propagate, aggregate, and convey uncertainty introduced over a series of data transformations • Enhance and evaluate visual reasoning using uncertainty with this framework • Focus on the analysis of network data

Publications • • 
 Tarik Crnovrsanin, Carlos Correa, and Kwan-Liu Ma. Social Network Discovery

Publications • • 
 Tarik Crnovrsanin, Carlos Correa, and Kwan-Liu Ma. Social Network Discovery Based on Sensitivity Analysis. In Proceedings of the 2009 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2009), July 20 -22 2009, pp. 107 -112. Carlos Correa, Yu-Hsuan Chan, and Kwan-Liu Ma. A Framework for Uncertainty-Aware Visual Analytics. In Proceedings of Visual Analytics Science and Technology 2009 Conference (VAST 2009), October 2009, pp. 51 -58 Tarik Crnovrsanin, Chris Muelder, Carlos Correa, and Kwan-Liu Ma. Proximity-based Visualization of Movement Trace Data. In Proceedings of Visual Analytics Science and Technology 2009 Conference, October 2009 (VAST 2009), pp. 11 -18. Yu-Hsuan Chan, Carlos Correa, and Kwan-Liu Ma. Flow-based Scatterplots for Sensitivity Analysis. In Proceedings of the Visual Analytics Science and Technology 2010 Conference (VAST 2010). Yu-Hsuan Chan, Kimberly Keeton, and Kwan-Liu Ma. Interactive Visual Analysis of Hierarchical Enterprise Data, In Proceedings of the 12 th IEEE Conference on Commerce and Enterprise Computing (CEC 2010), November 10, 2010 Carlos Correa, Tarik Crnovrsanin, and Kwan-Liu Ma. Visual Reasoning about Social Networks using Centrality Sensitivities. IEEE Transactions on Visualization and Computer Graphics, accepted for publication, November 1, 2010 Carlos Correa and Kwan-Liu Ma. Visualizing Social Network. A book chapter to appear.

Software • Net. Zen • An open-source software tool for the analysis and visualization

Software • Net. Zen • An open-source software tool for the analysis and visualization of social and other scale-free networks • Providing a general framework for studying uncertainty in network-based analytics • Version 1. 0 will be available soon • http: //vis. cs. ucdavis. edu/Net. Zen

Demo by Tarik Crnovrsanin

Demo by Tarik Crnovrsanin

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