505 search results - page 27 / 101 » Cluster-based retrieval using language models |
ICML
2005
IEEE
14 years 11 months ago
2005
IEEE
How to assign appropriate weights to terms is one of the critical issues in information retrieval. Many term weighting schemes are unsupervised. They are either based on the empir...
CIKM
2009
Springer
14 years 5 months ago
2009
Springer
We investigate the problem of determining the polarity of sentiments when one or more occurrences of a negation term such as “not” appear in a sentence. The concept of the sco...
ECIR
2008
Springer
14 years 9 days ago
2008
Springer
Many traditional information retrieval models, such as BM25 and language modeling, give good retrieval effectiveness, but can be difficult to implement efficiently. Recently, docum...
ICTIR
2009
Springer
13 years 8 months ago
2009
Springer
Abstract. A mismatch between differenteventspaceshasbeen used toargue against rank equivalence of classic probabilistic models of information retrieval and language models. We ques...
WSDM
2009
ACM
14 years 5 months ago
2009
ACM
This paper proposes a novel application of a statistical language model to opinionated document retrieval targeting weblogs (blogs). In particular, we explore the use of the trigg...