Improving Temporal Language Models for Determining Time of Non-timestamped Documents.
Nattiya KanhabuaKjetil NørvågPublished in: ECDL (2008)
Keyphrases
- time stamped
- language model
- language modeling
- temporal patterns
- document retrieval
- probabilistic model
- n gram
- ad hoc information retrieval
- temporal constraints
- information retrieval
- retrieval model
- query expansion
- vector space model
- news articles
- smoothing methods
- document ranking
- test collection
- language modeling approaches
- passage retrieval
- statistical language models
- language models for information retrieval
- event sequences
- document level
- term dependencies
- temporal information
- query terms
- relevance model
- pseudo relevance feedback
- relevant documents
- temporal reasoning