Hiromitsu Kato

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Much business and technical attention is being paid to the potential for new services in a ubiquitous computing environment. One of the probable features of these services is 'context-awareness', which is made possible by using information from the physical environmental through sensors. This paper provides an overview of the opportunities for new services(More)
We propose a method to retrieve trustworthy information from a word-of-mouth community space that could include inappropriate information. In a ubiquitous information society, high anonymity could cause some problems concerning human rights infringements, such as slander and invasion of privacy. On the other hand, unless anonymity is guaranteed at a certain(More)
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