Peer-to-peer networks have become increasingly popular in the recent years. In an open peer-to-peer network peers often have to interact with unknown peers and need to manage the risk in their communications. It is very important for peers to select a trustworthy peer to accomplish a task. Peers must be able to determine the trustworthiness of other peers to increasing uncertainty and risk. Thu...

A peer data sharing system consists of peers where a database in a peer is designed and administered autonomously. Acquaintances between peers are used to share data among peers. These acquaintances are established thorough data sharing constraints. Data between peers may be inconsistent with respect to constraints due to the change of constraints (e.g. adding, modifying, and deleting constrain...

Peer-to-peer networks have become increasingly popular in the recent years. In an open peer-to-peer network peers often have to interact with unknown peers and need to manage the risk in their communications. It is very important for peers to select a trustworthy peer to accomplish a task. Peers must be able to determine the trustworthiness of other peers to increasing uncertainty and risk. Thu...

In recent years, a large number of DHTs have been proposed. However, very few of them have been deployed in real-life large scale systems. An exception is KAD, a DHT based on Kademlia that is part of the widely used eMule peer-to-peer system, which has more than 1.5 million simultaneous users. We have developed a very fast crawler and explored KAD for more than a month by crawling part of the K...

Peers is a prototype for parallel theorem proving in a distributed environment. It implements a number of strategies for refutational, contraction-based theorem proving in equational theories, whose signatures may include associative-commutative (AC) function symbols. “Contraction-based” strategies is a more general term for “simplification-based”, “rewriting-based” or “(Knuth-Bendix) completio...

Many reputation management schemes have been introduced to assist peers in choosing trustworthy collaborators in P2P environments where honest peers coexist with malicious ones. These schemes indeed provide some useful information about the reliability of peers, but they still suffer from various attacks including slandering, collusion, etc. Consequently, it is crucial to be able to detect mali...

in the area of youth health, peers education is an approach to health promotion. assess the training needs of peers educators clarifies the components, values, and quality of training protocols. aim to that we conducted a participatory educational needs assessment of youth peer educators.involving youth and key informants in direct collaboration with research team, a qualitative approach was pl...

objective: this research aimed at evaluating the moderator role of school connection on the impact of violent friends towards aggressive behaviors in adolescent students of tehran high schools. methods: a sample of 3529 participants from tehran high school students was selected using multistage sampling method. participants completed school connection questionnaire (scq), iranian adolescents ri...