Keyphrases
- high order
- action recognition
- semantic features
- syntactic features
- feature set
- higher order
- bag of features
- activity recognition
- pairwise
- semantic information
- human actions
- bag of words
- markov random field
- feature vectors
- feature space
- recognizing human actions
- feature selection
- visual features
- image features
- action classification
- web pages
- computer vision
- knn
- low level
- multiple features
- spatio temporal
- global features
- space time interest points