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- W268056222 abstract "The most attractive form of future network content will be multi-media including speech information, and such speech information usually carries the core concepts for the content. As a result, the spoken documents associated with the multi-media content very possibly can serve as the key for retrieval and browsing. This paper presents a new approach of hierarchical topic organization and visual presentation of spoken documents for such a purpose based on the Probabilistic Latent Semantic Analysis (PLSA). With this approach the spoken documents can be organized into a two-dimensional tree (or multi-layered map) of topic clusters, and the user can very efficiently retrieve or browse the network content or associated spoken documents. Different from the conventional document clustering approaches, with PLSA the relationships among the topic clusters and the appropriate terms as the topic labels can be very well derived. An initial prototype system with Chinese broadcast news as the example spoken documents including automatic generation of titles and summaries and retrieval/browsing functionalities is also presented. Choice of different units other than words to be used as the terms in the processing is also considered in the system based on the special structure of the Chinese language." @default.
- W268056222 created "2016-06-24" @default.
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- W268056222 date "2005-09-04" @default.
- W268056222 modified "2023-10-14" @default.
- W268056222 title "Hierarchical topic organization and visual presentation of spoken documents using probabilistic latent semantic analysis (PLSA) for efficient retrieval/browsing applications" @default.
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- W268056222 doi "https://doi.org/10.21437/interspeech.2005-67" @default.
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