602 search results - page 51 / 121 » Representing Context Information for Document Retrieval |
SIGIR
2006
ACM
14 years 1 months ago
2006
ACM
Vector Space Model (VSM) has been at the core of information retrieval for the past decades. VSM considers the documents as vectors in high dimensional space. In such a vector spa...
IAT
2005
IEEE
14 years 1 months ago
2005
IEEE
Similarity measures are mechanisms that assign a numeric score indicating how closely two documents, or a document and a query match. The Cosine measure is one of the similarity m...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Current search engines do not support user searches for chemical entities (chemical names and formulae) beyond simple keyword searches. Usually a chemical molecule can be represen...
NAACL
2004
13 years 9 months ago
2004
Definition questions represent a largely unexplored area of question answering--they are different from factoid questions in that the goal is to return as many relevant "nugg...
RIAO
2007
13 years 9 months ago
2007
Document frequency is used in various applications in Information Retrieval and other related fields. An assumption frequently made is that the document frequency represents a lev...