Finding, accessing and consuming multimedia content on the Web is still a challenge. In this position statement we discuss three still widely neglected issues arising when one is interacting with multimedia content in social media environments: provenance, trust, and privacy. We will introduce a generic model allowing us to identify potential risks and problems, further discuss this model regar...

Peer-to-peer computing has emerged as a significant paradigm for providing distributed services, in particular collaboration for content sharing and distributed computing. However, this computing paradigm suffers from several drawbacks that obstruct its wide adoption. Lack of trust between peers is one of the most serious issues, which causes security challenges in the P2P systems. This paper s...

Decentralized Peer to Peer (P2P) networks offer both opportunities and threats. Its open and decentralized nature makes it extremely susceptible to malicious users spreading harmful content like viruses, trojans or, even just wasting valuable resources of the network. In order to minimize such threats, the use of community-based reputations as trust measurements is fast becoming a de-facto stan...

In this research study, we investigate issues of trust that affect online consumers' decisions to purchase goods on an ebusiness website. What elements of the site interface make a difference in a person’s decision to trust a firm (or not) when visiting the site for the first time with no prior knowledge of the firm? What elements of the website enhance or inhibit the process of the social cons...

Internet has made a profound change in the lives of many enthusiastic innovators and researchers. The information available on the web has knocked the doors of Knowledge Discovery leading to a new Information era. Unfortunately, most Search Engines provide web content which is irrelevant to the information intended to the browser. Many Text Categorization techniques for web content have been de...

In this paper, we propose that identity reference used over distributed communication should be defined independent from any attributes and/or the public keys associated with the underlying subject. This allows the identity reference to be persistent over changes made to the attributes and/or the public keys. We further suggest to separate the trust establishment over distributed communication ...

The Web is currently characterised by user contribution. As a result, content is generated in an uncontrolled way leading to the so-called “information overload”. The role of information filtering techniques and recommender systems is to give a solution to this problem by taking into account user preferences, and/or other context of information to present the content. Furthermore, word-of-mouth...

In this paper a trust-based coalition formation game is proposed to design opportunistic hop-by-hop forwarding schemes, relying on cellular Device-to-Device (D2D) communications, to enhance content uploading services. The User Equipments (UEs) are sources of data to be uploaded to a cellular base station (eNodeB) and are assumed to be rational self-interested players as they aim at maximizing t...

The Internet gives users easy and immediate access to a lot of resources (documents, media, services, etc.). Among this abundance of items, information overload is an evergrowing problem. Recommender systems are one classically proposed solution to cope with this problem. We propose an evolution of trust-based recommender systems that only relies on local information and can be deployed on top ...

A research project with distributed electronic teams was conducted to examine how virtual temporary teams quickly develop and maintain trust relationships with people that they hardly know, and may never meet again, with the goal of producing interdependent work. We collected data from 14 teams of students from three different universities with the aim of providing a theoretical and empirical e...