699 search results - page 91 / 140 » Hierarchical pitman-yor language model for information retri... |
ECIR
2007
Springer
14 years 11 months ago
2007
Springer
This paper introduces the concept of a Parameterised Search System (PSS), which allows flexibility in user queries, and, more importantly, allows system engineers to easily defin...
CIKM
2011
Springer
13 years 9 months ago
2011
Springer
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
SIGIR
2003
ACM
15 years 3 months ago
2003
ACM
Thesaurus has been widely used in many applications, including information retrieval, natural language processing, and question answering. In this paper, we propose a novel approa...
SIGIR
2010
ACM
14 years 10 months ago
2010
ACM
Inferring the score distribution of relevant and non-relevant documents is an essential task for many IR applications (e.g. information filtering, recall-oriented IR, meta-search,...
SIGIR
2010
ACM
15 years 1 months ago
2010
ACM
Pseudo-relevance feedback is an effective technique for improving retrieval results. Traditional feedback algorithms use a whole feedback document as a unit to extract words for ...