1. Fishery View Improvement of Time Series Line Chart Visualization of Fishery Data CPSC 533C Final Presentation Ying Zhang & Lan Wu December 19 th 2005

2. Background: Ecopath: Line chart system developed by UBC Fishery Department No fish is an island

3. Motivation: Too many time series gathered Curves overlapping and information overload

4. Data: Focus: 45 fishes –The diet matrix (45 by 45 mat) –Their population at 648 discrete time points before and after fishing strategy applied (two 45 by 648 mat)

5. Task and Infovis Solution 1: Task: Find the related fishes of a specific fish Solution: Brushing and highlighting

6. Task and Infovis Solution 2: Task: Evaluate the effect of human’s fishing Solution: Difference graph

7. Task and Infovis Solution 3: Task: Find the patterns fish populations match Solution: Clustering

8. High Level Implementation: Programming Platform: Visual Studio.Net Graphics Package: Zedgraph Clustering Algorithm – Distance Measure: (Root Mean Square)

9. Demo coming~

10. Unfinished/Future Work: Repeated Colors Overlapping reduced but still not eliminated Code Optimization More user interaction

11. Lessons learned: Understanding users’ preferences Developing based on an existing framework or using a visualization package

12. Thank you ! ?