Home › Forums › OpenEars › [Resolved] How to reject out-of-vocabulary utterances? › Reply To: How to reject out-of-vocabulary utterances?
I saw the doc .But It’s difficult to understood for this: “However, since a phone loop should give us better rejection than confidence scores, I propose that we implement a phone loop in the FlatLinguist as a first attempt. It should be fairly easy to expand the unknown word <unk> into an all-phone self-looping network. As a starter, context-independent phones will be used, since context-dependency was shown to not matter in this case. If a result contains the <unk> word, the utterance can possibly be out-of-grammar. We leave it to the application developer to determine that. “.
1.what the “phone loop” mean?
2.how to use “<unk>“? Is there a sampleCode for Implementation Details?
thx a lot~