Cluster-based retrieval using language models

@inproceedings{Liu2004ClusterbasedRU,
  title={Cluster-based retrieval using language models},
  author={Xiaoyong Liu and W. Bruce Croft},
  booktitle={SIGIR},
  year={2004}
}
Previous research on cluster-based retrieval has been inconclusive as to whether it does bring improved retrieval effectiveness over document-based retrieval. Recent developments in the language modeling approach to IR have motivated us to re-examine this problem within this new retrieval framework. We propose two new models for cluster-based retrieval and evaluate them on several TREC collections. We show that cluster-based retrieval can perform consistently across collections of realistic… CONTINUE READING
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