1. What Did I Miss? Visualizing the Past through Video Traces
M. Nunes, S. Greenberg, S. Carpendale, & C. Gutwin
Presented by
K. Everitt & T. Kriplean

2. Saul’s research Phidgets GroupKit Media in the Home GroupKit
Telepointers
Concurrency control
innovative and seminal system designs based on observations of social phenomenon;
articulation of design-oriented social science theories, and
refinement of evaluation methods.
In the timeline paper, saul is clearly building on his past recent work, even at the end mentioning how timeline was integrated with Community Bar (evaluation of which is getting published at the upcoming group conference:
Media in the Home

3. Computer Supported Cooperative Work
Single user methods don’t extend to multi-user domains
Focus on
Workplace activity
Understanding nature of collaborative tasks
Remote collaboration
Early apps
CAD, computer integrated manufacturing, computer aided software engineering, office automation

4. CSCW: Dimensions of Cooperation
Location
Same Place
Different Place
Same
Time
Face to Face conversation
Telephone
Different
Post-it note
Letter
Time

5. TIMELINE Video Media Space (VMS) Useful for distributed collaboration
Try to recreate effect of co-location
Computer support for awareness
These technologies often try to recreate face to face
Video has ammenities but also problems.
Requires full attention
Eye gaze
Recording
What are some of video’s ammenities over our sensory experience of colocation?

6. Slit Scanning
Uses slit-scanning to allow exploration of video traces

7. Video is high-fidelity sensor information
Video is high-fidelity sensor information. To allow effective interactive exploration, it depends on being able to distinguish background from sparse interesting events that can be explored

8. Timeline “scrubbing” Time travel to points of interest
Explore different temporal scales simultaneously
“scrubbing”
Time travel to points of interest
Dynamically change slit

9. Why the clean image in the “last minute”?

10. Explore the past in fine-granularity

11. Activity histories of people
“rhythms”
For learned prediction of socially-appropriate interruptability

12. TIMELINE demo

13. Deployment Deployed at open house In research lab
Elicited possible uses & abuses of the tech
In research lab
Experienced first hand uses & abuses

14. Awareness & privacy
Create the technology to spur on debate about the theoretical tension between awareness & privacy
Ambiguity & Plausible Deniablity
Paper emphasis not on user evaluation, but on spurring debate…our discussion should follow this.
Awareness & privacy are major topics within CSCW…

15. Value of Media Spaces What are they good for? Is it worth it?
What kinds of privacy policies might be employed?
Reluctance and perception of risk
It captures more than you
Tacit info becomes explicit
Distraction
Yet we can control what is captured