Time-based language models

@inproceedings{Li2003TimebasedLM,
  title={Time-based language models},
  author={Xiaoyan Li and W. Bruce Croft},
  booktitle={CIKM},
  year={2003}
}
We explore the relationship between time and relevance using TREC ad-hoc queries. A type of query is identified that favors very recent documents. We propose a time-based language model approach to retrieval for these queries. We show how time can be incorporated into both query-likelihood models and relevance models. These models were used for experiments comparing time-based language models to heuristic techniques for incorporating document recency in the ranking. Our results show that time… CONTINUE READING
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