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Fishery View Improvement of Time Series Line Chart Visualization of Fishery Data

Fishery View Improvement of Time Series Line Chart Visualization of Fishery Data. CPSC 533C Final Presentation Ying Zhang & Lan Wu December 19 th 2005. Background:. Ecopath: Line chart system developed by UBC Fishery Department. No fish is an island. Motivation:.

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Fishery View Improvement of Time Series Line Chart Visualization of Fishery Data

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  1. Fishery ViewImprovement of Time Series Line Chart Visualization of Fishery Data CPSC 533C Final Presentation Ying Zhang & Lan Wu December 19th 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 ! ?

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