We report on users' revisitation patterns to World Wide Web (web) pages, and use the
results to lay an empirical foundation for the design of history mechanisms in web browsers …

People display regularities in almost everything they do. This paper proposes characteristics
of an idealized algorithm that, when applied to sequences of user actions, would allow a …

We report on users' revisitation patterns to World Wide Web pages, and use these to lay an
empirical foundation for the design of history mechanisms in web browsers. Through history …

The National Science Foundation funded the first Coordination Theory and Collaboration
Technology initiative to look at systems that support collaborations in business and …

The paper reviews work on informal technical help giving between colleagues. It
concentrates on the process of how colleagues help each other to use a computer …

For a number of years we created software-based design environments solely to support
individual designers. Recently, however, we turned our attention to the problem of …

Information retrieval systems should acknowledge the existence of collaboration in the
search process. Collaboration can help users to be more effective in both learning systems …

Many applications require users to specify preferences. We support users in this task by
letting them define preferences relative to their personal history or that of other users. We …

Millions of web pages are visited, and revisited every day. On average, every second page
loaded was already visited before by the same user—individual means for recurrence rates …

Collecting, analyzing, and sharing information via a hypertext results in the continuous
modification of information content over a long period of time. Such tasks will benefit from …