Search For:

Displaying 1-50 out of 56 total
Sensemaking of Evolving Web Sites Using Visualization Spreadsheets
Found in: Information Visualization, IEEE Symposium on
By Ed H. Chi, Stuart K. Card
Issue Date:October 1999
pp. 18
In the process of knowledge discovery, workers examine available information in order to make sense of it. By sensemaking, we mean interacting with and operating on the information with a variety of information processing mechanisms [3,18]. Previously, we ...
 
The science of social interactions on the web
Found in: 2013 International Conference on Cyberworlds (CW)
By Ed H. Chi
Issue Date:October 2013
pp. 2
Summary form only given. Social interactions have always been an important part of human learning and experience. We now know that social interactions are critical in many knowledge and information processes. Research has shown results ranging from influen...
 
A Taxonomy of Visualization Techniques Using the Data State Reference Model
Found in: Information Visualization, IEEE Symposium on
By Ed H. Chi
Issue Date:October 2000
pp. 69
In previous work, researchers have attempted to construct taxonomies of information visualization techniques by examining the data domains that are compatible with these techniques. This is useful because implementers can quickly identify various technique...
 
Guest Editors' Introduction: Pervasive Computing in Sports Technologies
Found in: IEEE Pervasive Computing
By Ed H. Chi, Gaetano Borriello, Guerney Hunt, Nigel Davies
Issue Date:July 2005
pp. 22-25
Sensors and other ubiquitous computing technologies have slowly penetrated the arena of sports. This special issue gives some excellent examples of pervasive technology in sports and points to future directions.
 
Us vs. Them: Understanding Social Dynamics in Wikipedia with Revert Graph Visualizations
Found in: Symposium On Visual Analytics Science And Technology
By Bongwon Suh, Ed H. Chi, Bryan A. Pendleton, Aniket Kittur
Issue Date:November 2007
pp. 163-170
Wikipedia is a wiki-based encyclopedia that has become one of the most popular collaborative on-line knowledge systems. As in any large collaborative system, as Wikipedia has grown, conflicts and coordination costs have increased dramatically. Visual analy...
 
An Operator Interaction Framework for Visualization Systems
Found in: Information Visualization, IEEE Symposium on
By Ed H. Chi, John T. Riedl
Issue Date:October 1998
pp. 63
Information visualization encounters a wide variety of different data domains. The visualization community has developed representation methods and interactive techniques. As a community, we have realized that the requirements in each domain are often dram...
 
Advancing the Design of Technology-Mediated Social Participation Systems
Found in: Computer
By Ed H. Chi, Sean Munson, Gerhard Fischer, Sarah Vieweg, Cynthia Parr
Issue Date:November 2010
pp. 29-35
Technology-mediated social participation systems can dramatically change the way science, government, healthcare, entertainment, and enterprise operate. Using research from several fields, we can learn how to design better TMSP systems and to better integr...
 
Introducing Wearable Force Sensors in Martial Arts
Found in: IEEE Pervasive Computing
By Ed H. Chi
Issue Date:July 2005
pp. 47-53
Using sensors to augment sports equipment offers the possibility of accurate and transparent judging. Ensuring acceptance and adoption of such technology is complicated, however. To succeed, technological developments in sports equipment must not only be a...
 
Improving Web Usability Through Visualization
Found in: IEEE Internet Computing
By Ed H. Chi
Issue Date:March 2002
pp. 64-71
<p>Predictive Web usage visualizations can help analysts uncover traffic patterns and usability problems.</p>
 
Leveraging Online Populations for Crowdsourcing
Found in: IEEE Internet Computing
By Ed H. Chi,Michael S. Bernstein
Issue Date:September 2012
pp. 10-12
Crowdsourcing involves outsourcing some job to a distributed group of people online, typically by breaking the job down into microtasks. Online markets offer human users payment for completing small tasks, or users can participate in nonpaid platforms such...
 
Model-Driven Research in Human-Centric Computing
Found in: Visual Languages and Human-Centric Computing, IEEE Symposium on
By Ed H. Chi
Issue Date:September 2010
pp. 3
How can we build systems that enable users to mix and match tools together? How will we know whether we have done a good job in creating usable visual interactive systems that help users accomplish a wide variety of goals? How can people share the results ...
 
Want to be Retweeted? Large Scale Analytics on Factors Impacting Retweet in Twitter Network
Found in: Social Computing / IEEE International Conference on Privacy, Security, Risk and Trust, 2010 IEEE International Conference on
By Bongwon Suh, Lichan Hong, Peter Pirolli, Ed H. Chi
Issue Date:August 2010
pp. 177-184
No summary available.
 
Information Seeking Can Be Social
Found in: Computer
By Ed H. Chi
Issue Date:March 2009
pp. 42-46
For reasons ranging from obligation to curiosity, users have a strong inclination to seek information from others during the search process. Search systems using statistical analytics over traces left behind by others can help support the search experience...
 
The Social Web: Research and Opportunities
Found in: Computer
By Ed H. Chi
Issue Date:September 2008
pp. 88-91
Web 2.0-based technologies advance both collective and individual intelligence.
 
Instant foodie: predicting expert ratings from grassroots
Found in: Proceedings of the 22nd ACM international conference on Conference on information & knowledge management (CIKM '13)
By Alexander J. Smola, Chenhao Tan, Gueorgi Kossinets, David Huffaker, Ed H. Chi
Issue Date:October 2013
pp. 1127-1136
Consumer review sites and recommender systems typically rely on a large volume of user-contributed ratings, which makes rating acquisition an essential component in the design of such systems. User ratings are then summarized to provide an aggregate score ...
     
The false dichotomy between accessibility and usability
Found in: Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility (W4A '13)
By Ed H. Chi
Issue Date:May 2013
pp. 1-2
Traditionally, accessibility researchers have focused on the barrier-free designs that make information available to a diverse set of user abilities and constraints. Usability practitioners and researchers have focused their efforts on making information i...
     
Swipe vs. scroll: web page switching on mobile browsers
Found in: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13)
By Andrew Warr, Ed H. Chi
Issue Date:April 2013
pp. 2171-2174
Tabbed web browsing interfaces enable users to multi-task and easily switch between open web pages. However, tabbed browsing is difficult for mobile web browsers due to the limited screen space and the reduced precision of touch. We present an experiment c...
     
RepliCHI: the workshop
Found in: CHI '13 Extended Abstracts on Human Factors in Computing Systems (CHI EA '13)
By David Coyle, Ed H. Chi, Max L. L. Wilson, Paul Resnick
Issue Date:April 2013
pp. 3159-3162
The replication of, or perhaps the replicability of, research is often considered to be a cornerstone of scientific progress. Yet unlike many other disciplines, like medicine, physics, or mathematics, we have almost no drive and barely any reason to consid...
     
Online privacy; replicating research results
Found in: Communications of the ACM
By Daniel Reed, Ed H. Chi
Issue Date:October 2012
pp. 8-9
The Communications Web site, http://cacm.acm.org, features more than a dozen bloggers in the BLOG@CACM community. In each issue of Communications, we'll publish selected posts or excerpts.twitterFollow us on Twitter at http://twitter.com/blogCACMhttp://cac...
     
Who knows?: searching for expertise on the social web: technical perspective
Found in: Communications of the ACM
By Ed H. Chi
Issue Date:April 2012
pp. 110-110
Surveying a suite of algorithms that offer a solution to managing large document archives.
     
Reviewing peer review
Found in: Communications of the ACM
By Ed H. Chi, Jeannette M. Wing
Issue Date:July 2011
pp. 10-11
The Communications Web site, http://cacm.acm.org, features more than a dozen bloggers in the BLOG@CACM community. In each issue of Communications, we'll publish selected posts or excerpts.twitterFollow us on Twitter at http://twitter.com/blogCACMhttp://cac...
     
Mail2Wiki: low-cost sharing and early curation from email to wikis
Found in: Proceedings of the 5th International Conference on Communities and Technologies (C&T '11)
By Ben Hanrahan, Cedric Archambeau, Ed H. Chi, Gregorio Convertino, Guillaume Bouchard, Nicholas Kong, Thiebaud Weksteen
Issue Date:June 2011
pp. 98-107
In this design paper we motivate and describe the Mail2Wiki system, which enables low-cost sharing and early curation from email to wikis by knowledge workers. We aim to aid adoption of enterprise wikis and enable more efficient knowledge sharing and reuse...
     
The trouble with social computing systems research
Found in: Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems (CHI EA '11)
By Ed H. Chi, Mark S. Ackerman, Michael S. Bernstein, Robert C. Miller
Issue Date:May 2011
pp. 389-398
Social computing has led to an explosion of research in understanding users, and it has the potential to similarly revolutionize systems research. However, the number of papers designing and building new sociotechnical systems has not kept pace. We analyze...
     
Crowdsourcing and human computation: systems, studies and platforms
Found in: Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems (CHI EA '11)
By Aniket Kittur, Bjorn Hartmann, Ed H. Chi, Lydia Chilton, Michael Bernstein, Robert C. Miller
Issue Date:May 2011
pp. 53-56
Crowdsourcing and human computation are transforming human-computer interaction, and CHI has led the way. The seminal publication in human computation was initially published in CHI in 2004 [1], and the first paper investigating Mechanical Turk as a user s...
     
Transferability of research findings: context-dependent or model-driven
Found in: Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems (CHI EA '11)
By Dave Randall, David Millen, Ed H. Chi, Gunnar Stevens, John Zimmermann, Mary Czerwinski, Volker Wulf
Issue Date:May 2011
pp. 651-654
In this panel we will explore two distinct approaches to reach transferability currently prevailing in the HCI community. We will discuss epistemological differences and the strengths and criticisms of each approach. Importantly, we will discuss the implic...
     
Tweets from Justin Bieber's heart: the dynamics of the location field in user profiles
Found in: Proceedings of the 2011 annual conference on Human factors in computing systems (CHI '11)
By Bongwon Suh, Brent Hecht, Ed H. Chi, Lichan Hong
Issue Date:May 2011
pp. 237-246
Little research exists on one of the most common, oldest, and most utilized forms of online social geographic information: the 'location' field found in most virtual community user profiles. We performed the first in-depth study of user behavior with regar...
     
Clorg: collective intelligence in organizations
Found in: Proceedings of the 16th ACM international conference on Supporting group work (GROUP '10)
By Antonietta Grasso, David R. Millen, Ed H. Chi, Giorgio De Michelis, Gregorio Convertino
Issue Date:November 2010
pp. 355-358
Web 2.0 tools are penetrating into organizations after their successful adoption in the consumer domain (e.g., social networking; sharing of photos, videos, tags, or bookmarks; wiki-based editing). Some of these new tools and the collaborative processes th...
     
Eddi: interactive topic-based browsing of social status streams
Found in: Proceedings of the 23nd annual ACM symposium on User interface software and technology (UIST '10)
By Bongwon Suh, Ed H. Chi, Jilin Chen, Lichan Hong, Michael S. Bernstein, Sanjay Kairam
Issue Date:October 2010
pp. 303-312
Twitter streams are on overload: active users receive hundreds of items per day, and existing interfaces force us to march through a chronologically-ordered morass to find tweets of interest. We present an approach to organizing a user's own feed into cohe...
     
Expanding CS education; improving software development
Found in: Communications of the ACM
By Ed H. Chi, Ruben Ortega, Ruben Ortega
Issue Date:September 2010
pp. 8-9
http://cacm.acm.org/blogs/blog-cacm/82365The Communications Web site, http://cacm.acm.org, features more than a dozen bloggers in the BLOG@CACM community. In each issue of Communications, we'll publish selected posts or excerpts.twitterFollow us on Twitter...
     
The chaos of the internet as an external brain; and more
Found in: Communications of the ACM
By Ed H. Chi, Greg Linden, Mark Guzdial
Issue Date:June 2010
pp. 120-ff
The Communications Web site, http://cacm.acm.org, features more than a dozen bloggers in the BLOG@CACM community. In each issue of Communications, we'll publish selected posts or excerpts.twitterFollow us on Twitter at http://twitter.com/blogCACMGreg Linde...
     
Designing a cross-channel information management tool for workers in enterprise task forces
Found in: Proceedings of the International Conference on Advanced Visual Interfaces (AVI '10)
By Bongwon Suh, Ed H. Chi, Gregorio Convertino, Lichan Hong, Sanjay Kairam
Issue Date:May 2010
pp. 103-110
This paper presents a research project on the design of a cross-channel information management tool for knowledge workers: we focus on IT services professionals in a large enterprise who work in multiple ad hoc task forces. Through three rounds of investig...
     
FeedWinnower: layering structures over collections of information streams
Found in: Proceedings of the 28th international conference on Human factors in computing systems (CHI '10)
By Bongwon Suh, Ed H. Chi, Gregorio Convertino, Lichan Hong, Sanjay Kairam
Issue Date:April 2010
pp. 947-950
Information overload is a growing threat to the productivity of today's knowledge workers, who need to keep track of multiple streams of information from various sources. RSS feed readers are a popular choice for syndicating information streams, but curren...
     
The singularity is not near: slowing growth of Wikipedia
Found in: Proceedings of the 5th International Symposium on Wikis and Open Collaboration (WikiSym '09)
By Bongwon Suh, Ed H. Chi, Gregorio Convertino, Peter Pirolli
Issue Date:October 2009
pp. 1-10
Prior research on Wikipedia has characterized the growth in content and editors as being fundamentally exponential in nature, extrapolating current trends into the future. We show that recent editing activity suggests that Wikipedia growth has slowed, and ...
     
Augmented social cognition: using social web technology to enhance the ability of groups to remember, think, and reason
Found in: Proceedings of the 35th SIGMOD international conference on Management of data (SIGMOD '09)
By Ed H. Chi
Issue Date:June 2009
pp. 3-4
We are experiencing a new Social Web, where people share, communicate, commiserate, and conflict with each other. As evidenced by systems like Wikipedia, twitter, and delicious.com, these environments are turning people into social information foragers and...
     
With a little help from my friends: examining the impact of social annotations in sensemaking tasks
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Christoph Held, Diane Schiano, Ed H. Chi, Les Nelson, Lichan Hong, Peter Pirolli
Issue Date:April 2009
pp. 1-4
In prior work we reported on the design of a social annotation system, SparTag.us, for use in sensemaking activities such as work-group reading and report writing. Previous studies of note-taking systems have demonstrated behavioral differences in social a...
     
Annotate once, appear anywhere: collective foraging for snippets of interest using paragraph fingerprinting
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Ed H. Chi, Lichan Hong
Issue Date:April 2009
pp. 1-4
A common practice in work groups is to share links to interesting web pages. Moreover, passages in these web pages are often cut-and-pasted, and used in various other contexts. In this paper we report how we explore the idea of paragraph fingerprinting to ...
     
What's in Wikipedia?: mapping topics and conflict using socially annotated category structure
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Aniket Kittur, Bongwon Suh, Ed H. Chi
Issue Date:April 2009
pp. 1-4
Wikipedia is an online encyclopedia which has undergone tremendous growth. However, this same growth has made it difficult to characterize its content and coverage. In this paper we develop measures to map Wikipedia using its socially annotated, hierarchic...
     
Signpost from the masses: learning effects in an exploratory social tag search browser
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Ed H. Chi, Peter Pirolli, Rowan Nairn, Yvonne Kammerer
Issue Date:April 2009
pp. 1-4
Social tagging arose out of the need to organize found content that is worth revisiting. A significant side effect has been the use of social tagging sites as navigational signposts for interesting content. The collective behavior of users who tagged conte...
     
Towards a model of understanding social search
Found in: Proceedings of the ACM 2008 conference on Computer supported cooperative work (CSCW '08)
By Brynn M. Evans, Ed H. Chi
Issue Date:November 2008
pp. 21-27
Search engine researchers typically depict search as the solitary activity of an individual searcher. In contrast, results from our critical-incident survey of 150 users on Amazon's Mechanical Turk service suggest that social interactions play an important...
     
Can you ever trust a wiki?: impacting perceived trustworthiness in wikipedia
Found in: Proceedings of the ACM 2008 conference on Computer supported cooperative work (CSCW '08)
By Aniket Kittur, Bongwon Suh, Ed H. Chi
Issue Date:November 2008
pp. 21-27
Wikipedia has become one of the most important information resources on the Web by promoting peer collaboration and enabling virtually anyone to edit anything. However, this mutability also leads many to distrust it as a reliable source of information. Alt...
     
Towards a model of understanding social search
Found in: Proceeding of the 2008 ACM workshop on Search in social media (SSM '08)
By Brynn M. Evans, Ed H. Chi
Issue Date:October 2008
pp. 1001-1001
Search engine researchers typically depict search as the solitary activity of an individual searcher. In contrast, results from our critical-incident survey of 150 users on Amazon's Mechanical Turk service suggest that social interactions play an important...
     
Understanding the efficiency of social tagging systems using information theory
Found in: Proceedings of the nineteenth ACM conference on Hypertext and hypermedia (HT '08)
By Ed H. Chi, Todd Mytkowicz
Issue Date:June 2008
pp. 131-183
Given the rise in popularity of social tagging systems, it seems only natural to ask how efficient is the organically evolved tagging vocabulary in describing underlying document objects? Does this distributed process really provide a way to circumnavigate...
     
SparTag.us: a low cost tagging system for foraging of web content
Found in: Proceedings of the working conference on Advanced visual interfaces (AVI '08)
By Ed H. Chi, Les Nelson, Lichan Hong, Peter Pirolli, Raluca Budiu
Issue Date:May 2008
pp. 1-29
Tagging systems such as del.icio.us and Diigo have become important ways for users to organize information gathered from the Web. However, despite their popularity among early adopters, tagging still incurs a relatively high interaction cost for the genera...
     
Activity-based serendipitous recommendations with the Magitti mobile leisure guide
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By Alan Walendowski, Bo Begole, Bob Price, Diane J. Schiano, Ed H. Chi, Ellen Isaacs, Ji Fang, Kurt Partridge, Mark W. Newman, Michael Roberts, Nicolas Ducheneaut, Paul Rasmussen, Tracy King, Victoria Bellotti
Issue Date:April 2008
pp. 49-54
This paper presents a context-aware mobile recommender system, codenamed Magitti. Magitti is unique in that it infers user activity from context and patterns of user behavior and, without its user having to issue a query, automatically generates recommenda...
     
Lifting the veil: improving accountability and social transparency in Wikipedia with wikidashboard
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By Aniket Kittur, Bongwon Suh, Bryan A. Pendleton, Ed H. Chi
Issue Date:April 2008
pp. 49-54
Wikis are collaborative systems in which virtually anyone can edit anything. Although wikis have become highly popular in many domains, their mutable nature often leads them to be distrusted as a reliable source of information. Here we describe a social dy...
     
Crowdsourcing user studies with Mechanical Turk
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By Aniket Kittur, Bongwon Suh, Ed H. Chi
Issue Date:April 2008
pp. 49-54
User studies are important for many aspects of the design process and involve techniques ranging from informal surveys to rigorous laboratory studies. However, the costs involved in engaging users often requires practitioners to trade off between sample si...
     
He says, she says: conflict and coordination in Wikipedia
Found in: Proceedings of the SIGCHI conference on Human factors in computing systems (CHI '07)
By Aniket Kittur, Bongwon Suh, Bryan A. Pendleton, Ed H. Chi
Issue Date:April 2007
pp. 453-462
Wikipedia, a wiki-based encyclopedia, has become one of the most successful experiments in collaborative knowledge building on the Internet. As Wikipedia continues to grow, the potential for conflict and the need for coordination increase as well. This art...
     
Annotating 3D electronic books
Found in: CHI '05 extended abstracts on Human factors in computing systems (CHI '05)
By Ed H. Chi, Lichan Hong, Stuart K. Card
Issue Date:April 2005
pp. 1463-1466
The importance of annotations, as a by-product of the reading activity, cannot be overstated. Annotations help users in the process of analyzing, re-reading, and recalling detailed facts such as prior analyses and relations to other works. As elec-tronic r...
     
ScentHighlights: highlighting conceptually-related sentences during reading
Found in: Proceedings of the 10th international conference on Intelligent user interfaces (IUI '05)
By Ed H. Chi, Lichan Hong, Michelle Gumbrecht, Stuart K. Card
Issue Date:January 2005
pp. 272-274
Researchers have noticed that readers are increasingly skimming instead of reading in depth. Skimming also occur in re-reading activities, where the goal is to recall specific topical facts. Bookmarks and highlighters were invented precisely to achieve thi...
     
"Killer App" of wearable computing: wireless force sensing body protectors for martial arts
Found in: Proceedings of the 17th annual ACM symposium on User interface software and technology (UIST '04)
By Ed H. Chi, Greg Corbin, Jin Song
Issue Date:October 2004
pp. 277-285
Ubiquitous and Wearable Computing both have the goal of pushing the computer into the background, supporting all kinds of human activities. Application areas include areas such as everyday environments (e.g. clothing, home, office), promoting new forms of ...
     
 1  2 Next >>