Keyphrases
- information retrieval
- kalman filter
- visual tracking
- information retrieval systems
- web documents
- metadata
- real time
- xml documents
- free text
- document collections
- object tracking
- document clustering
- text documents
- document retrieval
- appearance model
- relevant documents
- customer reviews
- digital documents
- document analysis
- topic modeling
- document classification
- video surveillance
- retrieval systems
- keywords
- particle filter
- moving target
- user queries
- opinion mining
- multimedia documents
- robust tracking
- product features
- vector space