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Today e-mail is a indispensable communication tool because of wide spread of Internet technology and many spam mails are delivered in the Internet. In order to avoid spam mails, spam filter is used in many mail servers or PC. It checks the content, sending address or so on of a mail and decides whether the mail is a spam mail. After spam filter works well to remove spam mails, spam senders improve...
A novel RFID Tag architecture called OTag (Object Tag) and its protocol was designed to enhance the communication among real world objects. ITS (Intelligent Transportation System) was selected as the very first candidate to adopt above technology. Three actors of ITS; vehicle, user and infrastructure were represented as relevant instances of OTag class to enable the communications. To assure the security...
Due to the improvement of technology, the way human being do things are changing day by day. Railway infrastructures and locomotives have also been enhanced with latest technologies. Japan and Europe are the frontiers to adopt state-of-the-art technologies to railway systems. However we discover that there is a possibility beyond the current available systems. Though it is not an easy task to step...
Google is a popular search engine, however, there are some cases that search results are manipulated artificially by Google. In this paper, we develop a system of discovering semiautomatically the Web pages which are censored by Google in Japan. We also analyze the censored Web pages discovered by the system to find the tendency of censorship.The outline of discovering censored Web pages is as follows:...
We have already started a project for creating a community security structure spread worldwide that uses individually maintained home computers connected to the Internet. We call this project "the e-JIKEI network project". JIKEI means "Vigilante" in Japanese. The basic concept of the project is that every individual person watches in and around his/her house using cheap cameras...
This paper describes a project for the design and implementation of a community security system using individually maintained home computers that are connected to the Internet. In the initial stage of the project, a preliminary kit has been developed that consists of a commercial camera, free-software and an operation manual. Using the preliminary kit, an experimental security system has been implemented...
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