"Topic model"

Automatic audio tag classification via semi-supervised canonical density estimation

We propose a novel semi-supervised method for building a statistical model that represents the relationship between sounds and text labels (“tags”). The proposed method, named semi-supervised canonical density estimation, makes use of unlabeled sound …

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 …

保有知識の確信度に基づく対話型映像認識理解システムの質問生成戦略