1. InfoShape Jinsong Wang 03.2013

2. InfoShape: High-Level Views of Multidimensional Information Author: Hao, Jie Zhang, Kang University of Texas at Dallas Publication: VINCI '11VINCI '11 Proceedings of the 2011 Visual Information Communication - International Symposium ACMACM New York, NY, USA ©2011 ISBN: 978-1-4503-0786-4 doi>10.1145/2016656.201666810.1145/2016656.2016668 Keywords: Multidimensional Visualization; 3D Shapes; Sphere

3. Introduction It visualizes multidimensional information as a 3D sphere according to a pre-defined set of criteria. The idea is very simple - if a multi-dimensional information set satisfies a given set of criteria it will be represented as a perfect sphere. Otherwise, the distortions on the sphere indicate defective contents that do not satisfy some of the criteria.

4. Why 3D? 3D o Why Shape? Why Sphere? Why 3D? 3D objects adapt to the human’s perception system better than 2D objects. Why Shape? Due to the prominent role of shapes in perception, we use a shape to represent the global view of multi-dimensional information. Why Sphere? Gesalt theory concludes that the equidistance property makes sphere the “simplest form”, and thereby easier to detect and identify than other 3D objects.

5. 2D Representation in InfoShape

7. From 2D to 3D Mercator Projection

8. A Case Study: US Life Tables Probability od dying Number of surviving Number of dying Person years lived Total number of person lived Expectation of life Male Female White Black

10. if (Parallel coordinate){ D1: Probability of dying, D2: Number of surviving, D3: Number of dying, D4: Person years lived, D5: Total number of person lived, D6: Expectation of life; out<< visualization of White Female Population, White Male Population; }

12. Conclusion To provide an overview of multidimensional information at a high-level, we have proposed a new technique called InfoShape. The overview is essentially presented in a form of a 3D sphere, with respect to a pre-defined set of criteria. Distortions on the surface of the sphere denote how much the multidimensional data set matches or deviates from the criteria. The sphere visualization serves as a starting point for viewers to quickly grasp the overview of a multidimensional data set that is normally hard to comprehend before inspecting detailed and individual dimensional information. We have evaluated the InfoShape concepts using a set of US life tables obtained from the US Census data. We also performed an empirical study on the usability and effectiveness of the InfoShape visualization. The preliminary results are very encouraging. We believe that high-level visual evaluation techniques like InfoShape are useful for many real world applications. Our immediate future work includes further evaluation on higher dimensional and more complex datasets and development of various navigation drill-down algorithms and features.

13. Reference [1] Jie H., Kang Z. “InfoShape: High-Level View of Multidimensional Information” ACM New York, NY, USA ©2011 ISBN: 978-1-4503-0786-4 doi>10.1145/2016656.2016668ACM10.1145/2016656.2016668 [2] Mapping the sphere, http://math.rice.edu/~polking/cartography/cart.pdf

14. Thanks! 谢谢！