This paper presents small world architecture for P2P networks (SWAN) for content discovery in multi-group P2P systems. A semi-structured P2P algorithm of SWAN is utilized to create and find long-range shortcuts toward remote peer groups. In SWAN, not every peer node needs to be connected to remote groups, but every peer node can easily find which peer nodes have external connections to a specif...

Cooperation, a necessity for any peer-to-peer (P2P) cooperative service, is often achieved by rewarding good behavior now with the promise of future benefits. However, in most cases, interactions with a particular peer or the service itself eventually end, resulting in some last exchange in which departing participants have no incentive to contribute. Without cooperation in the last round, coop...

among structured peer-to-peer systems, chord has a general popularity due to its salient features like simplicity, high scalability, small path length with respect to network size, and flexibility on node join and departure. however, chord doesn’t take into account the topology of underlying physical network when a new node is being added to the system, thus resulting in high routing latency an...

OBJECTIVE To determine whether pre-school children with Autism Spectrum Disorders (ASD) interact differently with their peers with ASD compared to their typically developing (TD) peers, across three activities (free play, structured group time and semi-structured play) in an early intervention setting. METHODS We completed a series of non-experimental case studies involving 13 children with A...

Almost ten years have passed since the expression “peer-to-peer” reached the large internet population. It has had considerable success, but there still seems to be a long way ahead. In these ten years, a wealth of peer-to-peer systems has been proposed by the research institutions, but only few have made it commercially. While the research community introduces ever more advanced structured pee...

Distributed hash tables (DHTs) share storage and routing responsibility among all nodes in a peer-to-peer network. These networks have bounded path length unlike unstructured networks. Unfortunately, nodes can deny access to keys or misroute lookups. We address both of these problems through replica placement. In its simplest form, a peer-topeer network is created when two or more PCs are conne...

Extensive application of Peer-to-Peer systems demands an effective solution for efficient query processing, handling of churn rate, load balancing and maintenance of healthy arrangement of nodes for the improved response of the system. Several key based systems offer an efficient solution for query processing but suffer from transient node population. We present a structured hierarchical Peer-t...