Radio and television information filtering through speech recognition

The problem of information overload can be solved by the application of information filtering to the huge amount of data. Information on radio and television can be filtered using speech recognition of the audio track. A prototype system using closed captions has been developed on top of the INQUERY information access system. The challange of integrating speech recognition and information retrieval into a working system is a big one. The open problems are the selection of a document representation model, the recognition and selection of indexing features for speech retrieval and dealing with the erroneous output of recognition processes.

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