13 search results - page 1 / 3 » On Log-Likelihood-Ratios and the Significance of Rare Events |
EMNLP
2004
13 years 6 months ago
2004
We address the issue of judging the significance of rare events as it typically arises in statistical naturallanguage processing. We first define a general approach to the problem...
147
click to vote
CVPR
2012
IEEE
11 years 6 months ago
2012
IEEE
A novel approach for event summarization and rare event detection is proposed. Unlike conventional methods that deal with event summarization and rare event detection independently...
ICML
2008
IEEE
14 years 5 months ago
2008
IEEE
We consider the task of reinforcement learning in an environment in which rare significant events occur independently of the actions selected by the controlling agent. If these ev...
ICDM
2009
IEEE
13 years 2 months ago
2009
IEEE
Abstract--Imbalanced data sets present a particular challenge to the data mining community. Often, it is the rare event that is of interest and the cost of misclassifying the rare ...
TIP
2008
13 years 4 months ago
2008
In this paper, we present an automatic classification framework combining appearance based features and Hidden Markov Models (HMM) to detect unusual events in image sequences. One...