An Extension of Virtual Globe to Build On‐Demand Geospatial Data Sharing Capability Using Peer‐to‐Peer Technology
Identifieur interne : 000697 ( Istex/Corpus ); précédent : 000696; suivant : 000698An Extension of Virtual Globe to Build On‐Demand Geospatial Data Sharing Capability Using Peer‐to‐Peer Technology
Auteurs : Yi Liu ; Bin Li ; Liwei FanSource :
- Transactions in GIS [ 1361-1682 ] ; 2012-12.
Abstract
In the virtual globe system, ever higher performance is demanded for high quality service, especially when requesting intensive data from large‐scale networks, such as large scene 3D city models with fine textures. Extending the virtual globe platform from the present centralized mode into a decentralized mode can significantly improve platform capacity and service quality without additional investment in hardware, but presents new challenges such as the time cost of finding a peer, unstable offering, and low service capacity. A GeoODP2P network is designed based on specific features of spatial data transmission. Next, we discuss peer selection mechanisms that relieve the negative influence of peers, and propose a pre‐fetch mechanism that takes advantage of the unique characteristics of the P2P environment. This article implements a simulation system for a GeoODP2P network and presents a prototype platform that incorporates P2P functionality. Peer selection and pre‐fetch mechanisms are studied and tested on this simulation system. The prototype platform run in a real scenario demonstrates the effectiveness of applying P2P to a virtual globe platform.
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DOI: 10.1111/j.1467-9671.2012.01346.x
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Extending the virtual globe platform from the present centralized mode into a decentralized mode can significantly improve platform capacity and service quality without additional investment in hardware, but presents new challenges such as the time cost of finding a peer, unstable offering, and low service capacity. A Geo<fc>ODP2P</fc> network is designed based on specific features of spatial data transmission. Next, we discuss peer selection mechanisms that relieve the negative influence of peers, and propose a pre‐fetch mechanism that takes advantage of the unique characteristics of the <fc>P2P</fc> environment. This article implements a simulation system for a Geo<fc>ODP2P</fc> network and presents a prototype platform that incorporates <fc>P2P</fc> functionality. Peer selection and pre‐fetch mechanisms are studied and tested on this simulation system. 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E‐mail: </description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Bin</namePart><namePart type="family">Li</namePart><affiliation>Department of Geography, Central Michigan University</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Liwei</namePart><namePart type="family">Fan</namePart><affiliation>LIESMARS, Wuhan University</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><dateIssued encoding="w3cdtf">2012-12</dateIssued><dateCreated encoding="w3cdtf">2012-08-06</dateCreated><copyrightDate encoding="w3cdtf">2012</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract>In the virtual globe system, ever higher performance is demanded for high quality service, especially when requesting intensive data from large‐scale networks, such as large scene 3D city models with fine textures. Extending the virtual globe platform from the present centralized mode into a decentralized mode can significantly improve platform capacity and service quality without additional investment in hardware, but presents new challenges such as the time cost of finding a peer, unstable offering, and low service capacity. A GeoODP2P network is designed based on specific features of spatial data transmission. Next, we discuss peer selection mechanisms that relieve the negative influence of peers, and propose a pre‐fetch mechanism that takes advantage of the unique characteristics of the P2P environment. This article implements a simulation system for a GeoODP2P network and presents a prototype platform that incorporates P2P functionality. Peer selection and pre‐fetch mechanisms are studied and tested on this simulation system. The prototype platform run in a real scenario demonstrates the effectiveness of applying P2P to a virtual globe platform.</abstract><note type="funding">Fundamental Research Funds of the National Natural Science Foundation of Outstanding Key Laboratory - No. 41023001; </note><note type="funding">National Natural Science Foundation of China Young Program - No. 41101367; </note><note type="funding">Central Universities - No. 214275597; </note><relatedItem type="host"><titleInfo><title>Transactions in GIS</title></titleInfo><titleInfo type="abbreviated"><title>Transactions in GIS</title></titleInfo><genre type="journal">journal</genre><subject><genre>article-category</genre><topic>Research Article</topic></subject><identifier type="ISSN">1361-1682</identifier><identifier type="eISSN">1467-9671</identifier><identifier type="DOI">10.1111/(ISSN)1467-9671</identifier><identifier type="PublisherID">TGIS</identifier><part><date>2012</date><detail type="volume"><caption>vol.</caption><number>16</number></detail><detail type="issue"><caption>no.</caption><number>6</number></detail><extent unit="pages"><start>807</start><end>827</end><total>21</total></extent></part></relatedItem><identifier type="istex">FD5A79580594CAE3798DA1F0A0234C50C8D19840</identifier><identifier type="DOI">10.1111/j.1467-9671.2012.01346.x</identifier><identifier type="ArticleID">TGIS1346</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2012 Blackwell Publishing Ltd© 2012 Blackwell Publishing Ltd</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource></recordInfo></mods></metadata><enrichments><json:item><type>multicat</type><uri>https://api.istex.fr/document/FD5A79580594CAE3798DA1F0A0234C50C8D19840/enrichments/multicat</uri></json:item></enrichments><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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