Jigsaw: supporting investigative analysis through interactive visualization

Transcription

1 Jigsaw: supporting investigative analysis through interactive visualization Stefan Lorenz Universität des Saarlandes June 3, 2008

2 Analytics

3 The sense-making loop

4 Source documents VANCOUVER, British Columbia -- A Canadian immigration panel is considering whether accused environmental saboteur Tre Arrow can apply for refugee status in Canada. Arrow, 30, who is wanted for fire bombing logging and cement trucks in Oregon, asked the Canadian authorities to remain in Canada as a political refugee at a hearing in Vancouver on Tuesday. A key issue will be whether Arrow is affiliated with a terrorist group, which would immediately disqualify him from receiving refugee status in Canada, authorities said. The Immigration and Refugee Board is scheduled to decide by May 31 whether Arrow is affiliated with the Earth Liberation Front, a group the FBI considers a terrorist organization responsible for scores of attacks on property over the past dozen years. unstructured natural language extract entities (GATE [2]) from [3]

5 Source documents VANCOUVER, British Columbia -- A Canadian immigration panel is considering whether accused environmental saboteur Tre Arrow can apply for refugee status in Canada. Arrow, 30, who is wanted for fire bombing logging and cement trucks in Oregon, asked the Canadian authorities to remain in Canada as a political refugee at a hearing in Vancouver on Tuesday. A key issue will be whether Arrow is affiliated with a terrorist group, which would immediately disqualify him from receiving refugee status in Canada, authorities said. The Immigration and Refugee Board is scheduled to decide by May 31 whether Arrow is affiliated with the Earth Liberation Front, a group the FBI considers a terrorist organization responsible for scores of attacks on property over the past dozen years. location person date organisation...

6 Key features connects entities easy to use interface (select and expand) model-view-controller architecture different views/aspects query based events (freeze)

7 List view

8 Document View

9 Graph View

10 Scatter plot

11 Cluster view

12 Calendar view

13 Shoebox

14 Motivation Sense-making process Jigsaw - Cockpit Jigsaw Contest Sum up

15 The scenario fictional dataset suspicious entity Michael Jones video

16 VAST contest experience realistic tasks and scenarios real data with virtual thread traditional start - read first exploration - few connections missing entities add missing, remove false

17 VAST contest experience - results entity modification on the fly utilitiy initial leads and plots useful evidence marshalling view

18 Critics negative: entity quality lots of screen estate involved workcycle hard start positive: responsibility with the user great visualization intuitive usage

19 There is more academic research biological research social research newspaper/group search

20 Social network for Cain and Abel

21 Category

22 Further work improved shoebox scale geolocation structured data reliability of sources collaboration review capabilities

23 References John Stasko, Carsten Görg, Zhicheng Liu,,,Jigsaw: supporting investigative analysis through interactive visualization,,gate - General Architecture for Text Engineering, VAST 2007 CONTEST,