801 search results - page 87 / 161 » Estimating Likelihoods for Topic Models |
BMEI
2009
IEEE
13 years 11 months ago
2009
IEEE
The Gaussian mixture model is a powerful statistical tool in data modeling and analysis. Generally, the EM algorithm is utilized to learn the parameters of the Gaussian mixture. Ho...
DICTA
2009
13 years 11 months ago
2009
In many applied problems in the context of pattern recognition, the data often involve highly asymmetric observations. Normal mixture models tend to overfit when additional compone...
ICMCS
2007
IEEE
13 years 10 months ago
2007
IEEE
Near-duplicate keyframe retrieval is a critical task for video similarity measure, video threading and tracking. In this paper, instead of using expensive point-to-point matching ...
ICDAR
2009
IEEE
13 years 7 months ago
2009
IEEE
In our previous work, a precision constrained Gaussian model (PCGM) was proposed for character modeling to design compact recognizers of handwritten Chinese characters. A maximum ...
ICMCS
2008
IEEE
14 years 4 months ago
2008
IEEE
Recent studies in signal detection theory suggest that the human responses to the stimuli on a visual display are nondeterministic. People may attend to different locations on the...