1. GraphTrail: Analyzing Large Multivariate, Heterogeneous Networks while Supporting Exploration History Cody Dunne 1,2, Nathalie Henry Riche 1, Bongshin Lee 1, Ronald A. Metoyer 3, and George G. Robertson 1 1 Microsoft Research 2 University of Maryland, College Park 3 Oregon State University

2. Network Analysis is Hard Networks can be Large & complex Multivariate Heterogeneous Analysis can take Many sessions Many users

3. Who Uses Network Analysis

4. GraphTrail Aggregation Drag-and-drop interactions Integrated exploration history

6. Design–Aggregating Charts

7. Design–Drag & Drop Interaction

8. Design–Pivoting & Derived Attributes part of author cites P1A1 A2A3 P2 Author Name Affiliation Paper.Topic* Paper Topic Year Proceeding Country Date

9. Design–Visual Exploration History

10. Lab Study Can GraphTrail make the same findings as other tools? Can new users make findings? Can new users understand the exploration history?

11. Lab Study Can GraphTrail make the same findings as other tools? Yes, and more! “Find all papers written by all Japanese authors”

12. Lab Study–Exploration Can new users make findings? “What can you tell me about HCI research in Georgia?”

13. Lab Study–History Can new users understand the exploration history? Yes, and often motivation too!

14. Brughmans, T., et al., 2011 “How were Iron-Age communities integrated into the political and economic structure of the Roman Empire?” “How were urban social hierarchies within the Roman provinces structured and articulated?” Field Study With Archaeologists

15. Field Study–Current Practice...

16. Field Study–GraphTrail Analyses

17. Field Study–Sharing “the way I structured it makes sense to me.”

18. Field Study–Sharing Municipality = Écija OR Marchena

19. Field Study–Sharing Tag CloudDig Sites Grouped by Ceramic Component Municipality = Écija OR Marchena

20. Discussion Exposing exploration history without extra effort Scalability 1.Number of nodes, edges, types 2.Number of charts 20 – 30 per session NodesTypesEdgesTypes CHI10K320K3+ Archaeology13K2420K35

21. GraphTrail Overview A system for exploring large multivariate, heterogeneous networks using aggregation by node and edge attributes, A method for capturing a user’s exploration history and integrating it directly into the workspace, and A longitudinal field study and a qualitative lab study that prove the utility of these approaches. Play with GraphTrail at interactivity today! Exhibit i427, 12:50 – 14:30

22. GraphTrail: Analyzing Large Multivariate, Heterogeneous Networks while Supporting Exploration History Cody Dunne, Nathalie Henry Riche, Bongshin Lee, Ronald A. Metoyer, and George G. Robertson Play with GraphTrail at interactivity today! Exhibit i427, 12:50 – 14:30