305 search results - page 41 / 61 » CLIR Evaluation at TREC |
SIGIR
2005
ACM
14 years 2 months ago
2005
ACM
We propose a simple method for converting many standard measures of retrieval performance into metasearch algorithms. Our focus is both on the analysis of retrieval measures thems...
SIGIR
2004
ACM
14 years 2 months ago
2004
ACM
Previous research on cluster-based retrieval has been inconclusive as to whether it does bring improved retrieval effectiveness over document-based retrieval. Recent developments ...
CIKM
2004
Springer
14 years 2 months ago
2004
Springer
Query expansion is a well-known technique that has been shown to improve average retrieval performance. This technique has not been used in many operational systems because of the...
SIGIR
2003
ACM
14 years 1 months ago
2003
ACM
Hierarchies provide a means of organizing, summarizing and accessing information. We describe a method for automatically generating hierarchies from small collections of text, and...
CIVR
2003
Springer
14 years 1 months ago
2003
Springer
In this paper we describe new methods to detect semantic concepts from digital video based on audible and visual content. Temporal Gradient Correlogram captures temporal correlatio...