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SIGIR
2012
ACM
13 years 5 days ago
2012
ACM
Finding topic experts on microblogging sites with millions of users, such as Twitter, is a hard and challenging problem. In this paper, we propose and investigate a new methodolog...
JCDL
2009
ACM
15 years 4 months ago
2009
ACM
The utility of an enterprise search system is determined by three key players: the information retrieval (IR) system (the search engine), the enterprise users, and the service pro...
WWW
2006
ACM
15 years 10 months ago
2006
ACM
Large-scale text categorization is an important research topic for Web data mining. One of the challenges in large-scale text categorization is how to reduce the amount of human e...
WWW
2008
ACM
15 years 10 months ago
2008
ACM
Geography is becoming increasingly important in web search. Search engines can often return better results to users by analyzing features such as user location or geographic terms...
IRI
2008
IEEE
15 years 4 months ago
2008
IEEE
This paper introduces a novel algorithm for estimating energy expenditure during physical activity. The estimation is based on acceleration data measured from a wrist-worn acceler...