Open AccessA Popularity-Aware Semantic Overlay for Efficient Peer-to-Peer Search
Author(s) -
Choonhwa Lee,
Junwan Choi,
Eunsam Kim
Publication year - 2014
Publication title -
advances in electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 23
eISSN - 1844-7600
pISSN - 1582-7445
DOI - 10.4316/aece.2014.04016
Subject(s) - computer science , popularity , peer to peer , overlay , overlay network , semantic search , world wide web , information retrieval , theoretical computer science , computer network , distributed computing , search engine , the internet , programming language , psychology , social psychology
This paper presents a novel semantic overlay scheme that connects peers based on the similarity of their contents. Semantic closeness among overlay peers can effectively be determined via the exchanges of their content summary using Bloom filters. The overlay link quality is further improved by carefully selecting semantic neighbors according to their potential to contribute to content-based searches. The basic idea behind the semantic neighbor selection is that highly replicated documents should not excessively dominate the overlay topology, overshadowing rare to modestly-replicated items whose query efficiency is often more critical for overall search performance. The efficacy of the proposed semantic overlay is validated through our simulation study which demonstrates superior overlay link quality and query routing performance