Tracking Events Using Time-dependent Hierarchical Dirichlet Tree Model.

Rumeng Li Tao Wang Xun Wang

Published in: SDM (2015)

Keyphrases

em algorithm
high level
prior knowledge
hierarchical structure
mathematical model
probabilistic model
parameter estimation
tree structure
experimental data
objective function
hidden markov models
probability distribution
management system
statistical model
coarse to fine
hierarchical model