Unsupervised Event Detection with Infinite Poisson Mixture Model.
Vinod HegdeMilovan KrnjajicAlexei PozdnoukhovPublished in: BigData Congress (2015)
Keyphrases
- event detection
- mixture model
- unsupervised learning
- finite mixture model
- gaussian mixture model
- em algorithm
- probabilistic model
- hierarchical bayesian models
- expectation maximization
- video analysis
- model selection
- generative model
- activity recognition
- video surveillance
- event recognition
- supervised learning
- video event detection
- language model
- maximum likelihood
- semi supervised
- closed form
- unsupervised manner
- surveillance videos
- machine learning
- prior knowledge
- video event
- knn