Chatting Activity Recognition in Social Occasions Using Factorial Conditional Random Fields with Iterative Classification.
Chia-chun LianJane Yung-jen HsuPublished in: AAAI (2008)
Keyphrases
- activity recognition
- conditional random fields
- hidden markov models
- human activity recognition
- information extraction
- action recognition
- human activities
- graphical models
- sequence labeling
- probabilistic model
- higher order
- markov random field
- random fields
- structured prediction
- machine learning
- support vector machine
- decision trees
- smart home
- feature extraction
- named entity recognition
- text classification
- web page prediction
- generative model
- pairwise
- feature space
- image processing
- text categorization
- cost sensitive
- supervised learning
- feature vectors
- crf model
- activities of daily living
- feature selection