We study a dynamic learning model in which heterogeneously connected Bayesian players choose between two activities: learning from one’s own experience (work) or learning from the experience of others (search). Players who work produce an inflow of information which is local and dispersed across the society. Players who search aggregate the information produced by others and facilitate its diff...

This paper presents SplitQuest, a controlled and exhaustive search protocol that relies on a hybrid network structure to avoid unnecessary query replication and to speed up query propagation in P2P networks. In SplitQuest, peers are organized in replication groups, in which each peer shares its contents with all members, and queries are propagated only once to a group. By avoiding query duplica...

Giuliodori, Mauricio J., Heidi L. Lujan, and Stephen E. DiCarlo. Peer instruction enhanced student performance on qualitative problem-solving questions. Adv Physiol Educ 30: 168–173, 2006; doi:10.1152/advan.00013.2006.—We tested the hypothesis that peer instruction enhances student performance on qualitative problemsolving questions. To test this hypothesis, qualitative problems were included i...

Distributed Hash Tables (DHTs) provide a scalable solution for data sharing in large scale distributed systems, e.g. P2P systems. However, they only provide good support for exact-match queries, and it is hard to support complex queries such as top-k queries. In this paper, we propose a family of algorithms which deal with efficient processing of top-k queries in DHTs. We evaluated the performa...

Recently, the rapid growth of Internet technology and the deployment of high speed networks make many kinds of multimedia services possible. Preexisting multimedia services are designed based on the clientserver model which has the problems such as the server failure and the low speed communication due to the high load on the central server. To solve these problems, P2P (peer-to-peer) networks ...

Distributed applications should be able to make use of an object group service in a number of application specific ways. Three main modes of interactions can be identified: (i) request-reply: a client issues a request to multiple servers and waits for their replies; this represents a commonly occurring scenario when a service is replicated; (ii) group-to-group request-reply: a generalisation of...

content discovery is one of the fundamental issues that determines the architecture and performance of content distribution networks based on peer-to-peer (p2p) networks. to administrate the costs and discoveries, peers of a p2p network communicate with each other by one or more overlay layers. the condition of node’s relations in overlay networks, have a great impact in efficiency of networks....

abstract background: advancements in neonatal intensive care unit (nicu) science and technology have increased the survival rate of preterm infants. despite these advances, they are still facing with neurobehavioral problems. noise level in nicu is a potential source of stress for preterm infants. it should be decreased to the standard level as much as possible. the purpose of this study was to...

In this study, the researcher used the many-facet Rasch measurement model (MFRM) to detect two pervasive rater errors among peer-assessors rating EFL essays. The researcher also compared the ratings of peer-assessors to those of teacher assessors to gain a clearer understanding of the ratings of peer-assessors. To that end, the researcher used a fully crossed design in which all peer-assessors ...

Offspring of depressed parents are faced with significant interpersonal stress both within their families and in peer relationships. The present study examined parent and self-reports of adolescents' coping in response to family and peer stressors in 73 adolescent children of parents with a history of depression. Correlational analyses indicated that adolescents were moderately consistent in th...