CIKM
2010
Springer
13 years 3 months ago
2010
Springer
Dealing with verbose (or long) queries poses a new challenge for information retrieval. Selecting a subset of the original query (a "sub-query") has been shown to be an ...
PVLDB
2008
13 years 4 months ago
2008
Unlike traditional database queries, keyword queries do not adhere to predefined syntax and are often dirty with irrelevant words from natural languages. This makes accurate and e...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
This paper addresses the issue of query refinement, which involves reformulating ill-formed search queries in order to enhance relevance of search results. Query refinement typica...
GIR
2007
ACM
13 years 8 months ago
2007
ACM
In this paper, we present a preliminary study of geographic query words, which users' tend to re-use. The categories of the words demonstrate that geographically related word...
IJCNLP
2004
Springer
13 years 10 months ago
2004
Springer
In this paper, a series of window-based methods is proposed for information retrieval. Compared with traditional tf-idf model, our approaches are based on two new key notions. The ...
CIKM
2005
Springer
13 years 10 months ago
2005
Springer
The detection of new information in a document stream is an important component of many potential applications. In this paper, a new novelty detection approach based on the identi...