616 search results - page 37 / 124 » Hierarchical Hidden Markov Models for Information Extraction |
111
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ECCV
2000
Springer
16 years 3 months ago
2000
Springer
A new probabilistic background model based on a Hidden Markov Model is presented. The hidden states of the model enable discrimination between foreground, background and shadow. Th...
97
Voted
CCS
2007
ACM
15 years 7 months ago
2007
ACM
Keystroke typing characteristics is considered as one of the important biometric features that can be used to protect users against malicious attacks. In this paper we propose a s...
113
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ICIP
2006
IEEE
16 years 3 months ago
2006
IEEE
This paper describes a hierarchical Bayesian network used for segmenting desert images and detecting off road drivable corridors for autonomous navigation. Unlike the embedded hid...
AAAI
2008
15 years 3 months ago
2008
Search engines present fix-length passages from documents ranked by relevance against the query. In this paper, we present and compare novel, language-model based methods for extr...
120
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RAS
2000
15 years 1 months ago
2000
Most of the current work on automated facial expression analysis attempt to recognize a small set of prototypic expressions, such as joy and fear. Such prototypic expressions, how...