NAVIGATION:
PROFILE:
Ed H. Chi
Ed H. Chi manages PARC's newly defined "Augmented Social Cognition" research and team, which aims to understand the underlying mechanisms in online social systems such as Wikipedia and social tagging sites. Ed's most well-known project is the study of Information Scent -- understanding how users navigate and understand information environments such as the Web. He has also worked on information visualization, computational molecular biology, ubicomp, and recommendation/search engines.
Ed has been conducting research in human-computer interaction and social computing tools for over 15 years. He has been featured and quoted in the Economist, Time Magazine, LA Times, Associated Press, and more.
Ed earned his B.S., M.S., and Ph.D. (in 6.5 years) from the University of Minnesota. He has 19 patents and published over 50 research articles. In his spare time, Ed is an avid Taekwondo martial artist, photographer, and snowboarder.
view publications by: date | title | type | focus area
2010
Want to be retweeted? Large scale analytics on factors impacting retweet in Twitter network
IEEE SocialCom 2010
20 August 2010
Sensemaking with tweeting: exploiting microblogging for knowledge workers
CHI 2010 Microblogging Workshop
11 April 2010
FeedWinnower: layering structures over collections of information streams
ACM CHI 2010
10 April 2010
Short and tweet: experiments on recommending content from information streams
ACM CHI 2010
April 2010
Information seeking with social signals: anatomy of a social tag-based exploratory search browser
IUI 2010 Workshop on Social Recommender Systems
7 February 2010
2009
HCI International 2009
19 July 2009
Activity awareness & social sensemaking 2.0: design of a task force workspace
HCI International 2009
19 July 2009
Impact on process by a social annotation system: a social reading experiment
HCI International 2009
19 July 2009
Signpost from the masses: learning effects in an exploratory social tag search browser
CHI 2009
4 April 2009
Cases of online learning communities in a large enterprise
Social Mediating Technologies Workshop at CHI 2009
4 April 2009
2008
Understanding the efficiency of social tagging systems using information theory
Hypertext 2008
15 June 2008
Providing social transparency through visualizations in Wikipedia
Social Data Analysis Workshop at CHI 2008
6 April 2008
Activity-based serendipitous recommendations with the Magitti mobile leisure guide
CHI 2008
5 April 2008
Mobile recommendations for leisure activities
International Workshop on Recommendation and Collaboration at IUI 2008
13 January 2008
Can you ever trust a wiki? Impacting perceived trustworthiness in Wikipedia
CSCW 2008
1 January 2008
2007
Us vs. them: understanding social dynamics in Wikipedia with revert graph visualizations
IEEE Symposium on Visual Analytics Science and Technology 2007
30 October 2007
He says, she says: Conflict and coordination in Wikipedia
25th Annual ACM Conference on Human Factors in Computing Systems (CHI 2007)
28 April 2007
Power of the few vs. wisdom of the crowd: Wikipedia and the rise of the bourgeoisie
alt.CHI at 25th Annual ACM Conference on Human Factors in Computing Systems (CHI 2007)
28 April 2007
Augmented social cognition: understanding social foraging and social sensemaking
HCIC Workshop
1 February 2007
Information Visualization
11 January 2007
2006
Information scent and Web navigation: theory, models and automated usability evaluation
The Next Wave: NSA's Review of Emerging Technologies
31 December 2006
ScentIndex: Conceptually reorganizing subject indexes for reading
IEEE Symposium on Visual Analytics Science and Technology (VAST 2006)
2 November 2006
Entity workspace: an evidence file that aids memory, inference, and reading
IEEE International Conference on Intelligence and Security Informatics (ISI 2006)
22 May 2006
Entity quick click: rapid text copying based on automatic entity extraction
Extended Abstracts of CHI 2006
22 April 2006
2005
Information scent and web navigation: theory, models, and automated usability evaluation
Human Computer Interaction International 2005
22 July 2005
ScentHighlights: highlighting conceptually-related sentences during reading
Proceedings of the 10th International Conference on Intelligent User Interfaces
10 January 2005
2004
“Killer app” of wearable computing: wireless force sensing body protectors for martial arts
17th Annual ACM Symposium on User Interface Software and Technology
24 October 2004
3Book: a 3D electronic smart book
Proceedings of the Working Conference on Advanced Visual Interfaces (AVI 2004)
24 May 2004
“Killer app” of wearable computing: wireless force sensing body protectors for martial arts
ACM International Conference on Human Factors in Computing Systems (CHI 2004)
24 April 2004
3Book: a scalable 3D virtual book
Extended Abstracts of the ACM International Conference on Human Factors in Computing Systems (CHI 2004)
24 April 2004
eBooks with indexes that reorganize conceptually
Extended Abstracts of the ACM International Conference on Human Factors in Computing Systems (CHI 2004)
24 April 2004
2003
ScentTrails: integrating browsing and searching on the Web
ACM Transactions on Computer-Human Interaction
29 September 2003
Validating InfoScent™ models with large scale user studies
IBM NPUC Workshop (New Paradigms in User Computing)
14 July 2003
The Bloodhound project: automating discovery of Web usability issues using the InfoScent™ simulator
ACM Conference on Human Factors in Computing Systems (CHI 2003)
5 April 2003
2002
LumberJack: intelligent discovery and analysis of Web user traffic composition
Web Mining for Usage Patterns and User Profiles (WEBKDD 2002)
24 July 2002
Expressiveness of the data flow and data state models in visualization systems
Advanced Visual Interfaces (AVI 2002)
22 May 2002
The information scent project: automating discovery of Web usability issues
CHI 2002 Workshop on Automatically Evaluating the Usability of Web Sites
20 April 2002
Information visualization and visual perception (Tutorial)
ACM Conference on Human Factors in Computing Systems (CHI 2002)
17 April 2002
Separating the swarm: categorization methods for user sessions on the Web
ACM Conference on Human Factors in Computing Systems (CHI 2002)
16 April 2002
Mining the structure of user activity using cluster stability
SIAM Workshop on Web Analytics
13 April 2002
Improving Web usability through visualization
IEEE Internet Computing, Special Issue on Web Usability
25 March 2002
2001
Identification of Web user traffic composition using multi-modal clustering and information scent
First SIAM International Conference on Data Mining
6 April 2001
Using information scent to model user information needs and actions and the Web
Proceedings of 2001 ACM Conference on Human Factors in Computing Systems (CHI 2001)
31 March 2001
2000
Case study: resource steering in a visualization system
Joint Eurographics-IEEE TCVG Symposium on Visualization (VisSym'00)
28 May 2000
A taxonomy of visualization techniques using the data state reference model
Information Visualization 2000
24 May 2000
Enhancing a digital book with a reading recommender
Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2000)
1 April 2000
1999
Sensemaking of evolving Web sites using visualization spreadsheets
IEEE Symposium on Information Visualization
24 October 1999
Web analysis visualization spreadsheets
ACM Digital Libraries Workshop on Organizing Web Space (WOWS'99)
14 August 1999
1998
Visualizing the evolution of Web ecologies
Proceedings of ACM Conference on Human Factors in Computing Systems (CHI'98)
18 April 1998
related focus areas
- Enterprise Collaboration & Knowledge Systems
- Human-Machine Interfaces
- Information & Communication Technologies
- Information Visualization & Sensemaking
blog posts view all 
The slowing growth of Wikipedia (part two): resistance from dominant editors
posted 10 August 2009
in the news
view all
Palo Alto researchers create tool for dealing with Twitter's "information overload"
30 April 2010 | ReadWriteWeb
Eddi organizes all the crap on Twitter into neat piles
27 April 2010 | Fast Company
What's in a Tweet?
27 April 2010 | Technology Review
events
view all
Want to be retweeted? Large scale analytics on factors impacting retweet in Twitter network
20 August 2010 - 22 August 2010 | Minneapolis, MN
A comparison study of a social labeling technique and automatic keyword extraction for representing wikipedia contributions
23 May 2010 - 26 May 2010 | Washington, DC
FeedWinnower: layering structures over collections of information streams
13 April 2010 | Atlanta, GA