We present a distributed scheme for trust inference in peer-to-peer networks. Our work is in context of the NICE system, which is a platform for implementing cooperative applications over the Internet. We describe a technique for efficiently storing user reputation information in a completely decentralized manner, and show how this information can be used to efficiently identify non-cooperative...

People with a self-control problem often seek relief through social interactions rather than binding commitments. Thus, in self-help groups like Alcoholic Anonymous, Narcotics Anonymous etc., members are said to achieve better personal outcomes by mainly sharing their experiences. In other settings, however, peer influences can severely aggravate individual tendencies towards immediate gratific...

Security in collaborative peer groups is an active research topic. Most previous work focused on key management without addressing an important pre-requisite: admission control, i.e., how to securely admit a new member. This paper represents an initial attempt to sketch out an admission control framework suitable for different flavors of peer groups and match them with appropriate cryptographic...

PEER INTERACTION AND RELATIONSHIPS—AN HISTORICAL OVERVIEW 573 Early North American Research 573 Post-World War II 574 INTERACTIONS, RELATIONSHIPS, AND GROUPS: ORDERS OF COMPLEXITY IN CHILDREN’S PEER EXPERIENCES 575 Interactions 576 Relationships 577 Groups 578 Culture 579 Summary 580 THEORIES RELEVANT TO THE STUDY OF CHILDREN’S PEER INTERACTIONS, RELATIONSHIPS, AND GROUPS 581 Personality Theori...

P2P systems are a great solution to the problem of distributing resources. The main issue of P2P networks is that searching and retrieving resources shared by peers is usually expensive and does not take into account similarities among peers. In this paper we present preliminary simulations of PROSA, a novel algorithm for P2P network structuring, inspired by social behaviours. Peers in PROSA se...

objectives this study compared the effects of peer education and an orientation tour on anxiety in patients who were candidates for coronary artery angiography. patients and methods this single blind quasi-experimental study was conducted in 2014. a total of 177 patients who were candidates for coronary artery angiography were divided into three groups: a peer education group, an orientation to...

For many years, an area of research in higher education has been emerging around the development and implementation of fair and effective peer evaluation programs. Recently, a new body of knowledge has developed regarding the development and implementation of fair and effective peer evaluation programs resulting in formative and summative evaluations. The purpose of this article is to describe ...