251 search results - page 45 / 51 » Analyzing the Effect of Query Class on Document Retrieval Pe... |
JISE
2007
13 years 7 months ago
2007
Query expansion is extensively applied in information retrieval systems, such as search engines. Most conventional approaches to query expansion have been developed based on textua...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Learning to rank is a new statistical learning technology on creating a ranking model for sorting objects. The technology has been successfully applied to web search, and is becom...
CHI
2000
ACM
14 years 2 days ago
2000
ACM
When a novice needs help, often the best solution is to find a human expert who is capable of answering the novice’s questions. But often, novices have difficulty characterizing...
IR
2010
13 years 6 months ago
2010
In this article we present Supervised Semantic Indexing (SSI) which defines a class of nonlinear (quadratic) models that are discriminatively trained to directly map from the word...
WWW
2005
ACM
14 years 8 months ago
2005
ACM
We consider the problem of efficiently sampling Web search engine query results. In turn, using a small random sample instead of the full set of results leads to efficient approxi...