Nick Jui-Chang Wang

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This paper considers the problem of rapid speaker adaptation in speech recognition. In particular, we exploit an approach based on combination of transformations, which utilizes the concepts of both maximum likelihood linear regression (MLLR) and eigenvoice adaptation. We analyze three different possible methods to realize the concept, and formulate a fast(More)
We have extended the Philips large vocabulary continuous speech recognition system towards Chinese On the way from our existing Western language technology to Mandarin the rst step was to build a suitable phonetic model This paper describes the development of our phonetic model excluding tones for Mandarin Chinese We will present a systematic comparison of(More)
Automatic speech recognition (ASR) is a technology which converts the phrases or words spoken by human into text. As a mature technology, ASR has become an alternative input method on many mobile devices, complementing the other input methods operated by hands. Although the technology has been developed for years, the accuracy and computational complexity(More)
Tone modeling is a critical component for Mandarin largevocabulary continuous-speech recognition systems. In previous work on pitch-feature extraction, we reported character error rate reductions of over 30% over the non-tonal baseline [1]. In this paper, we investigate how best to integrate tone modeling with a Mandarin LVCSR system. The paper focusses on(More)
The paper presents a novel approach, integrating layer concept information into the trigram language model, to improve the understanding accuracy for spoken dialogue systems. With this approach, both the recognition accuracy and out-of-grammar problem can be largely improved. The concept error rate is therefore reduced. In the experiment using a real-world(More)
In this paper, we present the Philips large vocabulary continuous Mandarin speech recognition system developed for the 2000 Taiwan Speech Input Technology Assessment. We systematically integrated key Mandarin components with up-todate Western-language techniques to build up a state-of-the-art Mandarin speech recognition system. These technologies include(More)