664 search results - page 21 / 133 » Adaptive Selectivity Estimation Using Query Feedback |
RIAO
2007
13 years 8 months ago
2007
As opposed to traditional Information Retrieval (IR) which views whole documents as atomic units of retrieval, XML IR processes XML elements as possible units of retrieval. Many o...
ICMCS
1999
IEEE
13 years 11 months ago
1999
IEEE
This paper presents an integrated framework for interactive content-based retrieval in video databases by means of visual queries. The proposed system incorporates algorithms for ...
ICIP
2003
IEEE
14 years 9 months ago
2003
IEEE
In this paper, we evaluate and investigate two main types of relevance feedback algorithms; the Euclidean and the correlation?based approaches. In the first case, we examine heuri...
CIKM
2008
Springer
13 years 9 months ago
2008
Springer
As an effective technique for improving retrieval effectiveness, relevance feedback (RF) has been widely studied in both monolingual and cross-language information retrieval (CLIR...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
— MIMO system design for real applications requires that factors such as channel estimation errors, feedback quantisation and realistic channel responses be taken into account. L...