Taizo Yamada

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In this paper, we propose replication methods to perform effective document sharing on a peer-to-peer(P2P) system where peers frequently join and leave the system. The proposed method uses the relevancy and usefulness of peers to determine how many replications should be made, and where to locate these replications. This paper shows empirically that the(More)
3pm-5:30pm Session 2 Advanced Digital Archives 1. Annotating the Web Archives An Exploration of Web Archives Cataloging and Semantic Web, Paul H. J. Wu, Adrian K. H. Heok, Ichsan P., Tamsir (Nanyang Technological University, Singapore) 2. Owlery: A Flexible Content Management System for "Growing Metadata" of Cultural Heritage Objects and Its Educational Use(More)
We often need to measure similarity between objective information when integrating information. We propose an algorithm in this paper for the Bayesian estimation of the parameters of a statistical string similarity model. To do this we need a smoothing technique for the parameter estimation, because a string similarity model usually contains many(More)
This paper proposes methods of visualizing the personal promotion records of Japanese government officials in medieval times.Our research is aimed at developing multiple visualization tools that facilitate discovery of exceptional promotions as a way of highlighting interesting or important factors behind historical events, or that enable comparison of(More)
Taizo Yamada, Kenro Aihara, Noriko Kando, Satoko Fujisawa, Yusuke Uehara, Takayuki Baba, Shigemi Nagata, Takashi Tojo, Yuko Hiroshima and Jun Adachi 1 National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo, Japan 2 Dept. of Informatics, the Graduate University for Advanced Studies, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo, Japan 3 Fujitsu(More)
Not only for further understanding of subjects but also for learning analytical thinking or inductive inference, it is important to provide a highly engageable environment where pupils can interact with high quality cultural contents easily. The authors have been developed an interactive exploring tool called CEAX Voyager. One of the important issues to(More)
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