vast challenge 2008 participant workshop migrant boats mini-challenge summary vast challenge 2008...
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![Page 1: VAST Challenge 2008 Participant Workshop Migrant Boats Mini-Challenge Summary VAST Challenge 2008 Participant Workshop Sunday Oct 19, 2008 (draft slides](https://reader035.vdocuments.site/reader035/viewer/2022062714/56649d3e5503460f94a175fb/html5/thumbnails/1.jpg)
VAST Challenge 2008 Participant Workshop
Migrant Boats Mini-Challenge Summary
VAST Challenge 2008 Participant Workshop
Sunday Oct 19, 2008(draft slides included in DVD distributed to participants)
![Page 2: VAST Challenge 2008 Participant Workshop Migrant Boats Mini-Challenge Summary VAST Challenge 2008 Participant Workshop Sunday Oct 19, 2008 (draft slides](https://reader035.vdocuments.site/reader035/viewer/2022062714/56649d3e5503460f94a175fb/html5/thumbnails/2.jpg)
VAST Challenge 2008 Participant Workshop
Migrant Boats Mini Challenge
• Dataset– Logs of landings or interception by Coast Guard– Launch point / landing point / type of vessel / date /
passengers / whether or not intercepted
• Questions– Describe pattern of landing and interdictions and how
they change over time?
• Ground Truth– Straight forward. No real trap but risk of misjudging
relative importance of certain things
![Page 3: VAST Challenge 2008 Participant Workshop Migrant Boats Mini-Challenge Summary VAST Challenge 2008 Participant Workshop Sunday Oct 19, 2008 (draft slides](https://reader035.vdocuments.site/reader035/viewer/2022062714/56649d3e5503460f94a175fb/html5/thumbnails/3.jpg)
VAST Challenge 2008 Participant Workshop
![Page 4: VAST Challenge 2008 Participant Workshop Migrant Boats Mini-Challenge Summary VAST Challenge 2008 Participant Workshop Sunday Oct 19, 2008 (draft slides](https://reader035.vdocuments.site/reader035/viewer/2022062714/56649d3e5503460f94a175fb/html5/thumbnails/4.jpg)
VAST Challenge 2008 Participant Workshop
![Page 5: VAST Challenge 2008 Participant Workshop Migrant Boats Mini-Challenge Summary VAST Challenge 2008 Participant Workshop Sunday Oct 19, 2008 (draft slides](https://reader035.vdocuments.site/reader035/viewer/2022062714/56649d3e5503460f94a175fb/html5/thumbnails/5.jpg)
VAST Challenge 2008 Participant Workshop
Map or no map?
Grid with lat/long coordinates (Beijing team)
Many used Google EarthSome: own GISSome: no map, or optional.
Nevac could move insert (e.g Mexico area) closer for more compact map.
(CMU team)
(U of Singapore team)
(U of Illinois team)
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VAST Challenge 2008 Participant Workshop
Grouping and clustering
(Spadac team)
(Parvac – U of Wash. team)
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VAST Challenge 2008 Participant Workshop
Aggregation (and dealing with overlap)
(Parvac – U. of Wash. team) Aggregation by regionX axis is region, e.g. L5 = Mexico
(Oculus team) Irregular areaAggregation on the map itself
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VAST Challenge 2008 Participant Workshop
Representing Time
• Animation– Those who relied solely on animation missed the large number
of Mexico landings (they overlapped in a very small area)
• Timelines
(VSTI Prajna team)
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VAST Challenge 2008 Participant Workshop
Representing Time
• 3D
(Tacc team)
![Page 10: VAST Challenge 2008 Participant Workshop Migrant Boats Mini-Challenge Summary VAST Challenge 2008 Participant Workshop Sunday Oct 19, 2008 (draft slides](https://reader035.vdocuments.site/reader035/viewer/2022062714/56649d3e5503460f94a175fb/html5/thumbnails/10.jpg)
VAST Challenge 2008 Participant Workshop
• Hybrid 2d-3d (projection)
Representing Time
(Oculus team)
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VAST Challenge 2008 Participant Workshop
Symbol used on the map
Dots (CORE team) Lines (Tacc team)
Centroid (Tacc team)
(Spadac team) Arrows (drawn by hand!)
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VAST Challenge 2008 Participant Workshop
Coordinated displays
GET COMVIS EXAMPLE
(Zagreb/VrVis/VTech team)
(Palantir team)
Simple and Effective Integrated Display Award
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VAST Challenge 2008 Participant Workshop
Search
(PNNL Core team)
![Page 14: VAST Challenge 2008 Participant Workshop Migrant Boats Mini-Challenge Summary VAST Challenge 2008 Participant Workshop Sunday Oct 19, 2008 (draft slides](https://reader035.vdocuments.site/reader035/viewer/2022062714/56649d3e5503460f94a175fb/html5/thumbnails/14.jpg)
VAST Challenge 2008 Participant Workshop
Analysis support
• Many merely report numbers
• Some make hypotheses
• Few provide some analysis and reporting support
• Analysis Summary Award to Spadac team (read it!)
(Oculus team)
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VAST Challenge 2008 Participant Workshop
Thoroughness of analysis
(Tacc team) X is time, Y latitudeBlack lines are coast guard patrol traces)
• Some teams provided the minimum answers • Other looked at the data in a very thorough fashion looking at every angles of the data (e.g. Palantir team).• Few gave suggestions: better patrolling areas for Coast Guard
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VAST Challenge 2008 Participant Workshop
• Periodic patterns– There were clear seasonal patterns
• Names of passengers– Tells where Paraiso members landed
Thoroughness of analysis