Please download the dossier by clicking on the dossier button x
×

Search and knowledge base question answering for a voice user interface

  • US 10,331,402 B1
  • Filed: 09/18/2017
  • Issued: 06/25/2019
  • Est. Priority Date: 05/30/2017
  • Status: Active Grant
First Claim
Patent Images

1. A computer implemented method comprising:

  • receiving audio data representing a question input to a device in communication with a question answering system;

    performing speech recognition on the audio data to obtain query text data;

    determining feature data representing characteristics of the query text data;

    processing the feature data using at least one trained machine learning model to determine that the question is suitable for answering using an unstructured web search;

    sending the query text data to a search component;

    receiving, from the search component, a plurality of links corresponding to search results, wherein a first link of the plurality of links corresponds to a web address;

    using the first link to obtain potential answer text from a web source;

    selecting a sentence of the potential answer text;

    performing natural language understanding (NLU) on the query text data to determine NLU results, wherein the performing NLU is performed at least partially in parallel with one or more of the processing, sending, receiving, using or selecting;

    determining that the NLU results correspond to a request for an answer to the question;

    generating output text including the sentence and an indicator of the web source;

    performing text-to-speech processing on the output text to obtain output audio data; and

    sending the output audio data to the device.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×