"Hidden Markov model"

Automatic video annotation via hierarchical topic trajectory model considering cross-modal correlations

We propose a new statistical model, named Hierarchical Topic Trajectory Model (HTTM), for acquiring a dynamically changing topic model that represents the relationship between video frames and associated text labels. Model parameter estimation, …

Semantic indexing and known item search based on a unified model with topic transition representation

We applied a generative approach to the TRECVID 2010 Semantic Indexing (SIN) and Known-Item Search (KIS) tasks, using a probabilistic network called Hierarchical Topic Trajectory Model (HTTM). It is our newly-developed model that can integrate …

A stochastic model of selective visual attention with a dynamic Bayesian network