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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...
Automatic evaluation of English timing control proficiency is carried out by comparing segmental duration differences between learners and reference native speakers. To obtain an objective measure matched to human subjective evaluation, we introduced a measure reflecting perceptual characteristics. The proposed measure evaluates duration differences weighted by the loudness of the corresponding speech...
We have proposed an expandable dialog scenario description and platform to manage dialog systems using a weighted finite-state transducer (WFST) in which user concept and system action tags are input and output of the transducer, respectively. In this paper, we apply this framework to statistical dialog management in which a dialog strategy is acquired from a corpus of human-to-human conversation...
A bias-offset transconductor is known as a linear MOS transconductor. The transconductor requires some peripheral circuits, which are a floating voltage source and a biasing current source. This paper presents a design of a linear transconductor/multiplier for low-voltage and low-power operation with two techniques. One is a method to realize high-accuracy floating voltage source employing low-voltage...
This paper introduces a general framework for incorporating additional sources of knowledge into an HMM-based statistical acoustic model. Since the knowledge sources are often derived from different domains, it may be difficult to formulate a probabilistic function of the model without learning the causal dependencies between the sources. We utilized a Bayesian network framework to solve this problem...
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