509 search results - page 42 / 102 » Using wikipedia categories for ad hoc search |
CIKM
2008
Springer
14 years 11 days ago
2008
Springer
Inverse document frequency (IDF) is one of the most useful and widely used concepts in information retrieval. There have been various attempts to provide theoretical justification...
TREC
2007
13 years 11 months ago
2007
This work details the experiments carried out using the Indri search engine for the ad hoc retrieval task in the TREC 2007 Million Query Track. We investigate using proximity feat...
WWW
2010
ACM
14 years 5 months ago
2010
ACM
The core task of sponsored search is to retrieve relevant ads for the user’s query. Ads can be retrieved either by exact match, when their bid term is identical to the query, or...
ESWS
2007
Springer
14 years 4 months ago
2007
Springer
Collaborative work environments for scientific knowledge have many applications in research as well as in education. Such systems already exist (e.g. Wikipedia and PlanetMath), b...
MOBIHOC
2002
ACM
14 years 10 months ago
2002
ACM
We examine two aspects concerning the influence of unidirectional links on routing performance in multihop wireless networks. In the first part of the paper, we evaluate the benef...