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Generating confidence scores from word lattices

  • US 7,562,010 B1
  • Filed: 06/23/2006
  • Issued: 07/14/2009
  • Est. Priority Date: 03/29/2002
  • Status: Expired due to Term
First Claim
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1. A system for determining confidence scores for the labels in a lattice that has one or more transitions that each have a label, the system comprising:

  • a module configured to determine a posterior probability for each transition of the lattice;

    a module configured to define one or more time slots for the lattice, wherein one or more transitions is at least partially included in each one or more time slots; and

    a module configured to, for each transition that is at least partially included in a particular time slot, combine the posterior probabilities of all transitions that have the same label to obtain a confidence score for that label.

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