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In this paper we propose a communicative robot that facilitates talk with a user who lacks a chance of verbal communication with others for any reasons (e.g. the elderly who live alone). As our first trial, this system is designed to support a user to talk while watching a TV program. It features two conversation techniques: realizing natural timing of simultaneous response and providing interesting...
An example-based response generation is a robust and practical approach for a real-environment information guidance system. However, this framework cannot reflect differences in nuance, because the set of answer sentences are fixed beforehand. To overcome this issue, we have proposed response generation using a statistical machine translation technique. In this paper, we make use of N-best speech...
In this paper, we investigate development and portability of ASR and Q&A modules of speech-oriented guidance systems for two different real environments. An initial prototype system has been constructed for a local community center using two years of humanlabeled data collected by the system. Collection of real user data is required because ASR task and Q&A domain of a guidance system are...
A comparative study on speech rate was conducted between dialogue speech and read speech of Japanese. Based on a model of fundamental frequency contour generation, four prosodic units, prosodic sentence, clause, phrase and word, are defined. Speech rate was analyzed with respect to these units, especially to prosodic phrases. In order to suppress various factors affecting speech rate, and to clarify...
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