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Interactive speech based learning/training system formulating search queries based on natural language parsing of recognized user queries

DC CAFC
  • US 6,665,640 B1
  • Filed: 11/12/1999
  • Issued: 12/16/2003
  • Est. Priority Date: 11/12/1999
  • Status: Expired due to Term
First Claim
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1. An interactive learning system adapted for responding to speech-based queries concerning topics addressed by such interactive learning system, the system comprising:

  • a query file for storing a plurality of topic query entries, each topic query entry including a query relating to one or more of the topics covered by the speech-based interactive learning system; and

    an answer file for storing a plurality of topic answer entries, each topic answer entry including an answer to one or more of said plurality of topic query entries, such that each topic query entry has at least one associated topic answer entry; and

    a speech recognition system for generating recognized speech utterance data from partially processed speech data associated with a speech-based query concerning one of said topics, said partially processed speech data being received from a remote speech capturing system; and

    said speech recognition system further cooperating with a natural language engine, which processes said recognized speech utterance data using a morphological analysis and a phrase analysis to form recognized speech sentence data corresponding to said speech-based query;

    a query formulation system for converting said recognized speech sentence data into a search query suitable for identifying a topic query entry corresponding to said speech-based query, and for locating at least one topic answer entry best matching said speech-based query.

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