25 search results - page 4 / 5 » LDA-based document models for ad-hoc retrieval |
CIKM
2008
Springer
13 years 9 months 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...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Blog feed search poses different and interesting challenges from traditional ad hoc document retrieval. The units of retrieval, the blogs, are collections of documents, the blog p...
CLEF
2008
Springer
13 years 9 months ago
2008
Springer
In this study we will discuss our cross language text retrieval (CLIR) experiments of Persian ad hoc track at CLEF 2008. Two teams from University of Tehran were involved in cross...
WSDM
2012
ACM
12 years 3 months ago
2012
ACM
This paper presents a novel opinion mining research problem, which is called Contrastive Opinion Modeling (COM). Given any query topic and a set of text collections from multiple ...
MM
1997
ACM
13 years 11 months ago
1997
ACM
Multimedia data has become readily available from a variety of resources, such as the Web, to users (ranging from naive to sophisticated) who need to select and to present the dat...