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DISAMBIGUATING USER INTENT IN CONVERSATIONAL INTERACTION SYSTEM FOR LARGE CORPUS INFORMATION RETRIEVAL

  • US 20140040274A1
  • Filed: 03/13/2013
  • Published: 02/06/2014
  • Est. Priority Date: 07/31/2012
  • Status: Active Grant
First Claim
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1. A method of disambiguating user intent in conversational interactions for information retrieval, the method comprising:

  • providing access to a set of content items, each of the content items being associated with metadata that describes the corresponding content items;

    providing access to structural knowledge, the structural knowledge showing semantic relationships and links among the content items;

    providing a user preference signature, the user preference signature describing preferences of a user for at least one of (i) particular content items and (ii) metadata associated with the content items;

    receiving a first input from the user, the first input intended by the user to identify at least one desired content item;

    determining an ambiguity index of the first input;

    upon a condition in which the ambiguity index exceeds a first threshold value, determining a query input based on the first input and at least one of the structural knowledge, the user preference signature, a location of the user, and a time of the first input and selecting a subset of content items from the set of content items based on comparing the query input and the metadata associated with the subset of content items; and

    upon a condition in which the ambiguity index does not exceed the first threshold value, selecting a subset of content items from the set of content items based on comparing the first input and the metadata associated with the subset of content items.

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