This paper focuses on P2P based data management and semantic mediation. We propose an approach based on a P2P for semantic interoperability of information sources that aims to combine the advantages of semantic mediation and peer-to-peer systems. It is based on a pure P2P with super peer architecture consisting of two types of peers. The super peer contains a reference ontology, which provides ...

In Peer-to-Peer data sharing systems, peers typically play equal roles and have equal capabilities. From the service perspective, peers provide a single service. For this reason, there is no need to explicitly model services. We argue, that for knowledge sharing systems, we need an effective combination of the capabilities of the peers both in terms of the services as well as the content they p...

this research study aimed at investigating whether using peer-provided feedbacks rather than teacher-provided comments would result in any significance difference in iranian english undergraduate students’ ability in writing. in so doing, based on a pretest (an opt & a writing exam), 40 subjects were assigned to two homogeneous groups of equal number the subjects in the control group received m...

We assess social influence on borrowers’ default decisions in a peer-to-peer lending market. Our analysis suggests that online borrowers are significantly influenced by defaults in their social networks. A friend’s default decision more than doubles a user’s default rate. We also find that not all friends have equal influences. The social influence is highly significant among online friends mad...

Peer-to-peer technologies (or P2P for short) have broken through in recent years as an attractive alternative to the traditional client-server-based architectures and systems. A lot of the attention paid to peer-to-peer systems has been caused by the widespread use of P2P file sharing networks, where (often illegal) media content is being distributed. Recently deployed peer-to-peer systems howe...

LAL, AKSHAY. Dgoogle: A Full-Text Search Engine in Large-Scale Peer-to-Peer Systems. (Under the direction of Professor Khaled Harfoush). Full-text search engines like Google serve an important role in accessing Internet resources. In such engines, a search for web pages, matching a user’ s query, are typically carried on a set of co-administered, physically co-located clusters of servers. Full-...

The research project CASCOM will implement, validate, and trial value-added support for business services for mobile workers and users across mobile and fixed networks. The vision of the CASCOM approach is that ubiquitous application services are flexibly co-ordinated and pervasively provided to the mobile users by intelligent agents in dynamically changing contexts of open, largescale, pervasi...

Little attention has been paid to the role of peer social capital in the school context, especially as a predictor of adolescents' academic outcomes. This study uses a nationally representative (N = 13,738, female = 51%), longitudinal sample and multilevel models to examine how peer networks impact educational achievement and attainment. Results reveal that, in addition to those factors typical...