STUDY FOR REPUTATION MODULE ON NETWORK COMMUNITY

在全球化和网络化的潮流中，你在网络交易中所能获得的利润或损失取决于对你不熟悉的人的信任判断。为了消除社会的不确定性，实现网络社会中的稳定活动，消除网络中人与人之间的信息不对称，实现信息共享环境就变得不可或缺。由于最近实现了许多用于情报共享的ICT工具，例如大规模协作、多媒体信息检索和SNS，因此通过信息公开极大地提高了信息的透明度。然而，对信息网络社会活动中的信任或人际网络分析的研究尚不成熟。研究了社会网络中互惠与基于信任的利他行为之间的关系，并将其反映到社会网络下运行的信息网络中。此外，作为案例研究，本文还对从大学邮件服务器上收集的电子邮件数据进行了社会网络分析，并在实验室实现了评价声誉现象的实验平台。

In the flow of the globalization and the networking, the profit or the loss which you can get in the network business depends on the trust judgment to someone whom you do not know well. In order to eliminate a social uncertainty, and to realize the stable activity in the networking society, it becomes indispensable to eliminate asymmetric information between people who function in the network, and to accomplish the information sharing environment. Since many ICT tools for the intelligence sharing, such as the mass collaboration, the multimedia information retrieval, and SNS have been recently achieved, transparency of information by information disclosure has improved extremely. However, the research for trust or the human network analysis in the social activities on the information networks is premature. We studied the relationship between reciprocity and the altruistic action base on the trust in the social network, and then did the reflection into the information network which operates under the social network. Furthermore, as a case study, the social network analysis of the e-mail data which were collected from the mail server of the university was done.The experimental platform for evaluating the reputation phenomena was implemented in our lab.