News Topic Tracking and Re-ranking with Query Expansion Based on Near-Duplicate Detection.
Xiaomeng WuIchiro IdeShin'ichi SatohPublished in: PCM (2009)
Keyphrases
- query expansion
- topic tracking
- topic detection and tracking
- meta search
- relevance model
- document ranking
- news stories
- information retrieval
- information filtering
- retrieved documents
- news articles
- news events
- information retrieval systems
- retrieval effectiveness
- query specific
- language modeling
- language model
- text retrieval
- text classification
- relevant documents
- pseudo relevance feedback
- retrieval model
- topic models
- learning to rank
- ranking algorithm
- relevance feedback
- news video
- video search
- query terms
- ad hoc retrieval
- rank aggregation
- probabilistic model
- user profiles
- machine learning
- web search
- recommender systems
- ranked list
- video content