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Many peoples are using the Internet and many types of devices have emarged. In this situation, a single user wants to continue to work in anytime and anywhere. Current contents service targets specific devices, so that it cannot support many different types of devices. To realize continuous and transparent services, we propose a new model of ASP. In our(More)
We introduce an interactive TV program production system for the coming digital TV era. To realize interactive TV program, we deploy software agents. In this article, we model the interactions in DTV and propose a scenario description language which can handle software agents and event. Finally, we implement our prototype system and produce a networked quiz(More)
  • K. Tajima
  • 2007
In this paper, we propose two methods of improving the efficiency of query evaluation in XML information subscription systems, where the users register queries to the server, and they are evaluated periodically. First, we show a method of optimizing communication costs between client sites and the server sites. In information subscription systems, when a(More)
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