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- W4172925 abstract "Information retrieval which aims to provide people with easy access to all kinds of information is now becoming more and more emphasized. However, most approaches to information retrieval are primarily based on literal term matching and operate in a deterministic manner. Thus their performance is often limited due to the problems of vocabulary mismatch and not able to be steadily improved through use. In order to overcome these drawbacks as well as to enhance the retrieval performance, in this paper we explore the use of topical mixture model for statistical Chinese spoken document retrieval. Various kinds of model structures and learning approaches were extensively investigated. In addition, the retrieval capabilities were verified by comparison with the conventional vector space model and latent semantic indexing model, as well as our previously presented HMM/N-gram retrieval model. The experiments were performed on the TDT2 Chinese collection. Noticeable improvements in retrieval performance were obtained." @default.
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- W4172925 date "2004-10-04" @default.
- W4172925 modified "2023-09-23" @default.
- W4172925 title "Statistical Chinese spoken document retrieval using latent topical information" @default.
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- W4172925 doi "https://doi.org/10.21437/interspeech.2004-51" @default.
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