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SIGMOD
2012
ACM
13 years 4 days ago
2012
ACM
Query substitution is an important problem in information retrieval. Much work focuses on how to find substitutes for any given query. In this paper, we study how to efficiently ...
JASIS
2011
14 years 4 months ago
2011
This paper aims to review the fiercely discussed question of whether the ranking of Wikipedia articles in search engines is justified by the quality of the articles. After an over...
AAAI
2008
15 years 1 days ago
2008
Search engines present fix-length passages from documents ranked by relevance against the query. In this paper, we present and compare novel, language-model based methods for extr...
CIKM
2008
Springer
14 years 11 months ago
2008
Springer
Data sparsity, scalability and prediction quality have been recognized as the three most crucial challenges that every collaborative filtering algorithm or recommender system conf...
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GIS
2009
ACM
15 years 10 months ago
2009
ACM
The k-anonymity technique is widely used to provide location privacy protection for accessing location-based services (LBS), i.e., the exact location of a query initiator is cloak...