Digital artifacts for remebering and storytelling: PostHistory and Social Network Fragments F. B. Viegas, D boyd, D. H. Nguyen, J. Potter, and J. Donath Speaker: Huang, Yi-Ching

What is life? Sharing life with others has more fun

About storytelling Telling Stories with MyLifeBits Location, sensor, photo …etc. Digital artifacts for remebering and storytelling PostHistory Social Network Fragments

About papers 1 F. B. Viegas, D boyd, D. H. Nguyen, J. Potter, and J. Donath. Digital artifacts for remembering and storytelling: Posthistory and social network fragments. In Proceedings of the 37th Hawaii International Conference on System Sciences, Big Island, Hawaii, USA, January J. Gemmell, A. Aris, and R. Lueder. Telling stories with mylifebits. In Proceedings of the IEEE International Conference on Multimedia and Expo (ICME), pages , July J. Gemmell, R. Lueder, and G. Bell. The mylifebits lifetime store. In Proceedings of the ACM SIGMM Workshop on Experiential Telepresence (ETP 2003), pages 80-83, New York, NY, USA, ACM Press.

Introduction Two projects PostHistory Social Network Fragments Visualize one’s social interactions in over time

Intentions Patterns in are inaccessible Social network exchange rhythms The role of time in these patterns Why visualize? Visualize what? Social landscapes Time and change

PostHistory Focus on 2 dimensions of Time Dyadic relationships with ego Visualize the changes in interaction between ego and their contacts over time

Impementation Daily averages Daily “quality” of s Frequency of exchanges with contacts Comparative frequency of exchanges with contacts

Calendar panelContacts panel

Circular mode

Vertical mode

Alphabetical mode

Social Network Fragments Explore the structure of an individual’ social network Reflect different facet of personal life Visualize the patterns during one’s life digital interactions

Structure Knowledge ties Awareness ties Weak awareness ties List awareness ties Trusted ties

Social network panelhistory panel

Small Evaluation Test user: 10 people Use one of the two systems 2 hours interaction Case studies: 2 people Use both two systems 10 hours interaction

User’s Reaction Be excited to recognize almost all the names on the screen Be eager to share the stories with the people involved

Concerns User want to highlight the meaningful periods of activity for future reference Multiple levels High-level Lower-level Too many names to read in overall visualization Cannot understand the pattern’s meaning

Discussion Not only reflect personally, but also share story Privacy The data is incomprehensible without explanation Where to go from here Solution: Public display Semi-public display Personal

Conclusion PostHistory and Social Network Fragments are designed to reveal social patterns in archives Share memories and storytelling props