190 search results - page 23 / 38 » Unsupervised estimation for noisy-channel models |
SIGIR
2011
ACM
14 years 14 days ago
2011
ACM
The majority of the current information retrieval models weight the query concepts (e.g., terms or phrases) in an unsupervised manner, based solely on the collection statistics. I...
95
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IDA
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. Accurately evaluating statistical independence among random variables is a key component of Independent Component Analysis (ICA). In this paper, we employ a squared-loss ...
ICIP
2007
IEEE
15 years 4 months ago
2007
IEEE
We propose a framework for estimation and analysis of temporal facial expression patterns of a speaker. The proposed system aims to learn personalized elementary dynamic facial ex...
SYNASC
2005
IEEE
15 years 3 months ago
2005
IEEE
The aim of this work is to analyze the applicability of crowding differential evolution to unsupervised clustering. The basic idea of this approach, interpreting the clustering pr...
106
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CVPR
2012
IEEE
13 years 2 days ago
2012
IEEE
We propose an unsupervised image segmentation method based on texton similarity and mode seeking. The input image is first convolved with a filter-bank, followed by soft cluster...