Expressing contractual agreements electronically potentially allows agents to automatically perform functions surrounding contract use: establishment, fulfilment, renegotiation etc. For such automation to be used for real business concerns, there needs to be a high level of trust in the agent-based system. While there has been much research on simulating trust between agents, there are areas wh...

Wikipedia is the well-nigh successful and most popular free encyclopedia developed by many editors in collaborative manner. It provides multitude of opportunities for online large scale knowledge sharing between virtual communities by letting the viewer to create and edit articles directly in the web browser. Information on Wikipedia is expanding largely, but the increase in quantity is not pro...

Due to enhance in complexity of services, there is a necessity for dynamic interaction models. For a serviceoriented system to work properly, we need a context-sensitive trust based search. Automatic information transfer is also deficient when unexpected query is given. However, it shows that search engines are vulnerable in answering intellectual queries and shows an unreliable outcome. The us...

The explosive growth of user generated content presents a window of opportunity for online service providers (i.e., online review website) to utilize both forms of review information, namely numerical rating and opinionated review to facilitate trust building with users. Nevertheless, users’ trust in a website can be undermined by the irreconcilable dissonance between both forms of review infor...

By considering the problems that commercial saffron companies have faced in international markets, the aim of this study is to investigate the impact of website content, including informational and design dimensions, on the effectiveness of e-marketing and e-trust as mediator variables. These aspects are examined with reference to sales and marketing division managers in a sample of 100 commerc...

Reviews and review based rankings are widely used in recommendation systems to provide potential customers quality information about selected products. During the last years, many researchers have shown that these reviews are neither objective nor do they represent real quality values. Even established ranking methods designed to fix this problem have been shown to be unreliable. In this work, ...

Guarantee of authenticity, integrity and datedness is necessary to rely on digital data objects. In literature, there are several solutions which offer these guarantees in the long term, but not much is known about their performance. This work presents implementations for two promising solutions, namely Content Integrity System and Notarisation, and compares them in regard to their computationa...

In the offline world, we look to the people we trust and those they trust for reliable information. In this paper, we present a computational model of this phenomenon and show how it can be used to identify high quality content in an Open Rating System, i.e., a system in which any user can rate content. We present a case study (Epinions.com) of a system based on this model and describe a new pl...

The open and anonymous nature of a P2P network makes it an ideal medium for attackers to spread malicious content. In this paper, we describe a reputationbased trust management protocol for P2P networks where users rate the reliability of parties they deal with, and share this information with their peers. The protocol helps establishing trust among good peers as well as identifying the malicio...

In this paper, we describe Credence, a decentralized object reputation and ranking system for large-scale peerto-peer filesharing networks. Credence counteracts pollution in these networks by allowing honest peers to assess the authenticity of online content through secure tabulation and management of endorsements from other peers. Our system enables peers to learn relationships even in the abs...