A Belief Model of Query Difficulty that uses Subjective Logic

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2009
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Lioma, Christina
Blanco, Roi
Mochales-Palau, Raquel
Moens, Marie-Francine
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AZZOPARDI, Leif, ed., Gabriella KAZAI, ed., Stephen ROBERTSON, ed., Stefan RÜGER, ed., Milad SHOKOUHI, ed., Dawei SONG, ed., Emine YILMAZ, ed.. Advances in Information Retrieval Theory. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009, pp. 92-103. Lecture Notes in Computer Science. 5766. ISBN 978-3-642-04416-8. Available under: doi: 10.1007/978-3-642-04417-5_9
Zusammenfassung

The difficulty of a user query can affect the performance of Information Retrieval (IR) systems. This work presents a formal model for quantifying and reasoning about query difficulty as follows: Query difficulty is considered to be a subjective belief, which is formulated on the basis of various types of evidence. This allows us to define a belief model and a set of operators for combining evidence of query difficulty. The belief model uses subjective logic, a type of probabilistic logic for modeling uncertainties. An application of this model with semantic and pragmatic evidence about 150 TREC queries illustrates the potential flexibility of this framework in expressing and combining evidence. To our knowledge, this is the first application of subjective logic to IR.

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ISO 690LIOMA, Christina, Roi BLANCO, Raquel MOCHALES-PALAU, Marie-Francine MOENS, 2009. A Belief Model of Query Difficulty that uses Subjective Logic. In: AZZOPARDI, Leif, ed., Gabriella KAZAI, ed., Stephen ROBERTSON, ed., Stefan RÜGER, ed., Milad SHOKOUHI, ed., Dawei SONG, ed., Emine YILMAZ, ed.. Advances in Information Retrieval Theory. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009, pp. 92-103. Lecture Notes in Computer Science. 5766. ISBN 978-3-642-04416-8. Available under: doi: 10.1007/978-3-642-04417-5_9
BibTex
@inproceedings{Lioma2009Belie-2688,
  year={2009},
  doi={10.1007/978-3-642-04417-5_9},
  title={A Belief Model of Query Difficulty that uses Subjective Logic},
  number={5766},
  isbn={978-3-642-04416-8},
  publisher={Springer Berlin Heidelberg},
  address={Berlin, Heidelberg},
  series={Lecture Notes in Computer Science},
  booktitle={Advances in Information Retrieval Theory},
  pages={92--103},
  editor={Azzopardi, Leif and Kazai, Gabriella and Robertson, Stephen and Rüger, Stefan and Shokouhi, Milad and Song, Dawei and Yilmaz, Emine},
  author={Lioma, Christina and Blanco, Roi and Mochales-Palau, Raquel and Moens, Marie-Francine}
}
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