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A study of smoothing methods for language models applied to information retrieval

✍ Scribed by Zhai, Chengxiang; Lafferty, John


Book ID
115534479
Publisher
Association for Computing Machinery
Year
2004
Tongue
English
Weight
289 KB
Volume
22
Category
Article
ISSN
1046-8188

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We apply boson expansion methods to an extended exactly solvable Lipkin-Meshkov-Glick model including anharmonicities in analogy with previous microscopic calculations. We study the effects of different approximations present in these calculations, among which the truncation of the Hamiltonian and o