987 search results - page 189 / 198 » Knowledge and social laws |
WWW
2006
ACM
15 years 10 months ago
2006
ACM
The asymmetry of activity in virtual communities is of great interest. While participation in the activities of virtual communities is crucial for a community's survival and ...
WWW
2005
ACM
15 years 10 months ago
2005
ACM
Message hierarchies in web discussion boards grow with new postings. Threads of messages evolve as new postings focus within or diverge from the original themes of the threads. Th...
KDD
2007
ACM
15 years 10 months ago
2007
ACM
Commercial datasets are often large, relational, and dynamic. They contain many records of people, places, things, events and their interactions over time. Such datasets are rarel...
KDD
2002
ACM
15 years 10 months ago
2002
ACM
Abstract. Since more and more Web sites, especially sites of retailers, offer automatic recommendation services using Web usage mining, evaluation of recommender algorithms has bec...
96
Voted
CHI
2005
ACM
15 years 10 months ago
2005
ACM
In this paper we report an ethnographic study of workarounds--informal temporary practices for handling exceptions to normal workflow--in a hospital environment. Workarounds are a...