243 search results - page 42 / 49 » Selectivity Estimation for Boolean Queries |
ERCIMDL
2007
Springer
15 years 3 months ago
2007
Springer
We propose and evaluate a query expansion mechanism that supports searching and browsing in collections of annotated documents. Based on generative language models, our feedback me...
PAMI
2006
14 years 9 months ago
2006
In this paper we present a variational Bayes (VB) framework for learning continuous hidden Markov models (CHMMs), and we examine the VB framework within active learning. Unlike a ...
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WACV
2005
IEEE
15 years 3 months ago
2005
IEEE
Nonlinear deformations in fingerprint images, arising from the elasticity of the skin as well as the pressure and movement of the finger during image acquisition, lead to diffi...
ICIP
2005
IEEE
15 years 11 months ago
2005
IEEE
This paper addresses the problem of matching visual parts of video sequences from within a large collection. The visual content of a video sequence is described by the set of the ...
ICIP
2001
IEEE
15 years 11 months ago
2001
IEEE
In this paper, an optimal relevance algorithm is proposed, which adapts the response of a content-based image retrieval (CBIR) system to the user's information needs. In part...