A Probabilistic Trust Model for Handling Inaccurate Reputation Sources

نویسندگان

  • Jigar Patel
  • W. T. Luke Teacy
  • Nicholas R. Jennings
  • Michael Luck
چکیده

This research aims to develop a model of trust and reputation that will ensure good interactions amongst software agents in large scale open systems in particular. The following are key drivers for our model: (1) agents may be self-interested and may provide false accounts of experiences with other agents if it is beneficial for them to do so; (2) agents will need to interact with other agents with which they have no past experience. Against this background, we have developed TRAVOS (Trust and Reputation model for Agent-based Virtual OrganisationS) which models an agent’s trust in an interaction partner. Specifically, trust is calculated using probability theory taking account of past interactions between agents. When there is a lack of personal experience between agents, the model draws upon reputation information gathered from third parties. In this latter case, we pay particular attention to handling the possibility that reputation information may be inaccurate.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Agent-based trust and reputation in the context of inaccurate information sources

FACULTY OF ENGINEERING, SCIENCE AND MATHEMATICS SCHOOL OF ELECTRONICS AND COMPUTER SCIENCE Doctor of Philosophy

متن کامل

A Trust and Reputation Model for Quality Assessment of Online Content

In recent years, online transactions have become more prevalent than it was. This means that the number of online users to perform such transactions keeps growing, causing an increase in the level of expectations for them. One of those expectations is to enable them to get a better understanding of such transactions before going ahead with it. Consequently, trust and reputation models represent...

متن کامل

Probabilistic Estimation of Trust Model and Threat Resistance Analysis in Service-oriented Systems

Trust and reputation models play an important role in enabling trusted computations over large-scale distributed Grids. Many models have been recently proposed and implemented within trust management systems. Nevertheless, the existing approaches usually assess performance of models in terms of resource management while less attention is paid to the analysis of security threat scenarios for suc...

متن کامل

Robust Reputations for Peer-to-Peer Marketplaces

We have developed a suite of algorithms to address two large problems confronting reputation systems for large peer-topeer markets: data sparseness and inaccurate feedback. To handle sparse data, we propose a Bayesian version of the well-known Percent Positive Feedback system. To mitigate the effect of inaccurate feedback – particularly retaliatory negative feedback – we propose EM-trust, which...

متن کامل

Trust, Reputation and Quality of E-Banking Services (Case Study: Melli Bank Customers)

In today’s very competitive world gaining competitive advantage is bound to arranging products and services of companies and businesses in accordance with customers’ needs. For this purpose, gaining reputation in E-service can be quite helpful. Thus the goal of the present research is studying the effect of E-Banking Service Quality on Bank Reputation. So a coherent collection of structures wer...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005