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- W2587684252 abstract "In order to achieve an utterance classifier that not only works robustly against speech recognition errors but also maintains high accuracy for input with no errors, we propose the following techniques. First, we propose a classifier training method in which not only error-free transcriptions but also recognized sentences with errors were used as training data. To maintain high accuracy whether or not input has recognition errors, we adjusted a scaling factor of the number of transcriptions for training data. Second, we introduced three classifiers that utilize different input features: words, phonemes, and words recovered from phonetic recognition errors. We also introduced a selection method that selects the most probable utterance class from outputs of multiple utterance classifiers using recognition results obtained from enhanced and non-enhanced speech signals. Experimental results showed our method cuts 55% of classification errors for speech recognition input while accuracy degradation rate for transcription input is 0.7%." @default.
- W2587684252 created "2017-02-17" @default.
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- W2587684252 date "2016-12-01" @default.
- W2587684252 modified "2023-09-23" @default.
- W2587684252 title "Robust utterance classification using multiple classifiers in the presence of speech recognition errors" @default.
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- W2587684252 doi "https://doi.org/10.1109/slt.2016.7846291" @default.
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