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In an object manipulation dialogue, a robot may misunderstand an ambiguous command from a user, such as “Place the cup down (on the table),” potentially resulting in an accident. Although making confirmation questions before all motion will decrease the risk of this failure, the user will find it more convenient if confirmation questions are not made under trivial situations. This paper proposes a...
Skillful management of the various types of documents used in intelligent activities and their efficient utilization are important. However, most available systems target only a single type of document (e-mails, Web pages, etc.) or are not adaptive enough. A more promising approach is topic-centered document management. A topic-centered document management system is described that changes its own...
Traditional noise reduction methods usually are based on the assumption that the short-term statistical distributions of speech and noise are different. Differently from that assumption, we have proposed a noise reduction method based on the assumption that the temporal modulations of noise and speech are different. Two steps are used in the proposed algorithm: one is the temporal modulation contrast...
This paper outlines the National Institute of Information and Communications Technology / Advanced Telecommunications Research Institute International (NICT/ATR) research activities in developing a spoken language translation system, specially for translating Indonesian spoken utterances into/from Japanese or English. Since the NICT/ATR Japanese-English speech translation system is an established...
We propose an approach to modeling Chinese tonal patterns, focusing on the basic fundamental frequency (F0) patterns characterized by the contextual linguistic features that can be directly extracted from text. We analyze tonal patterns as sparse target points (tonal F0 peaks and valleys) and represent them in parametric form within the framework of a functional F0 model. The relationships between...
Chinese is a tonal language. It has both lexical tones and intonation. The fundamental frequency (F0) contours thereby consist of tone and intonation components. This paper presents an approach to modeling the two components in separate ways and combining them to form the final F0 contours based on a functional F0 model. We analyze tonal patterns as sparse target points (tonal F0 peaks and valleys)...
In this paper, we proposed a robust speech feature extraction algorithm for automatic speech recognition which reduced the noise effect in the temporal modulation domain. The proposed algorithm has two steps to deal with the time series of cepstral coefficients. The first step adopted a modulation contrast normalization to normalize the temporal modulation contrast of both clean and noisy speech to...
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