US 2015/0088519 A1 · DETECTING POTENTIAL SIGNIFICANT ERRORS IN SPEECH RECOGNITION RESULTS

Abstract

In some embodiments, a recognition result produced by a speech processing system based on an analysis of a speech input is evaluated for indications of potential errors. In some embodiments, sets of words/phrases that may be acoustically similar or otherwise confusable, the misrecognition of which can be significant in the domain, may be used together with a language model to evaluate a recognition result to determine whether the recognition result includes such an indication. In some embodiments, a word/phrase of a set that appears in the result is iteratively replaced with each of the other words/phrases of the set. The result of the replacement may be evaluated using a language model to determine a likelihood of the newly-created string of words appearing in a language and/or domain. The likelihood may then be evaluated to determine whether the result of the replacement is sufficiently likely for an alert to be triggered.

Claims20

Dependent claims

A method of processing a result of a recognition by an automatic speech recognition (ASR) system on a speech input, the method comprising:

determining whether the result includes a member of a set of words or phrases, the set of words or phrases comprising a plurality of members and each member of the set comprising a word or phrase;
and
when it is determined that the result includes a word or phrase of a first member of the set,
producing a modified result by substituting a word or phrase of a second member of the set for the word or phrase of the first member in the result,
evaluating the modified result using at least one language model and/or at least one acoustic model, and
determining whether to trigger an alert based on a result of the evaluating.

3 more elements

At least one computer-readable storage medium having encoded thereon computer-executable instructions that, when executed by at least one computer, cause the at least one computer to carry out a method of processing a result of a recognition by an automatic speech recognition (ASR) system on a speech input, the method comprising:

determining whether the result includes a member of a set of words or phrases, the set of words or phrases comprising a plurality of members and each member of the set comprising a word or phrase;
and
when it is determined that the result includes a word or phrase of a first member of the set,
producing a modified result by substituting a word or phrase of a second member of the set for the word or phrase of the first member in the result,
evaluating the modified result using at least one language model and/or at least one acoustic model, and
determining whether to trigger an alert based on a result of the evaluating.

3 more elements

An apparatus comprising:

at least one processor;
and
at least one storage medium having encoded thereon processor-executable instructions that, when executed by the at least one processor, cause the at least one processor to carry out a method of processing a result of a recognition by an automatic speech recognition (ASR) system on a speech input, the method comprising:
determining whether the result includes a member of a set of words or phrases, the set of words or phrases comprising a plurality of members and each member of the set comprising a word or phrase;
and
when it is determined that the result includes a word or phrase of a first member of the set,
producing a modified result by substituting a word or phrase of a second member of the set for the word or phrase of the first member in the result,
evaluating the modified result using at least one language model and/or at least one acoustic model, and
determining whether to trigger an alert based on a result of the evaluating.

6 more elements

Dependencies are inferred from the claim text.

Detecting potential significant errors in speech recognition results

Life of this patent

Detecting potential significant errors in speech recognition results

Life of this patent

Abstract

Claims20