{"id":"https://openalex.org/W2120909192","doi":"https://doi.org/10.1109/infcom.2004.1356969","title":"On replica placement for QoS-aware content distribution","display_name":"On replica placement for QoS-aware content distribution","publication_year":2005,"publication_date":"2005-02-22","ids":{"openalex":"https://openalex.org/W2120909192","doi":"https://doi.org/10.1109/infcom.2004.1356969","mag":"2120909192"},"language":"en","primary_location":{"id":"doi:10.1109/infcom.2004.1356969","is_oa":false,"landing_page_url":"https://doi.org/10.1109/infcom.2004.1356969","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE INFOCOM 2004","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5015527156","display_name":"Xueyan Tang","orcid":"https://orcid.org/0000-0002-7404-7595"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Xueyan Tang","raw_affiliation_strings":["School of Computer Engineering, Nanyang Technological University, Singapore","Sch. of Comput. Eng., Nanyang Technol. Univ., Singapore#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Computer Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]},{"raw_affiliation_string":"Sch. of Comput. Eng., Nanyang Technol. Univ., Singapore#TAB#","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008564713","display_name":"Jianliang Xu","orcid":"https://orcid.org/0000-0001-9404-5848"},"institutions":[{"id":"https://openalex.org/I141568987","display_name":"Hong Kong Baptist University","ror":"https://ror.org/0145fw131","country_code":"HK","type":"education","lineage":["https://openalex.org/I141568987"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Jianliang Xu","raw_affiliation_strings":["Department of Computer Science, Hong Kong Baptist University, Hong Kong, China","Hong Kong Baptist University"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Hong Kong Baptist University, Hong Kong, China","institution_ids":["https://openalex.org/I141568987"]},{"raw_affiliation_string":"Hong Kong Baptist University","institution_ids":["https://openalex.org/I141568987"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5015527156"],"corresponding_institution_ids":["https://openalex.org/I172675005"],"apc_list":null,"apc_paid":null,"fwci":10.1224,"has_fulltext":false,"cited_by_count":71,"citation_normalized_percentile":{"value":0.98213188,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"2","issue":null,"first_page":"806","last_page":"815"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10742","display_name":"Peer-to-Peer Network Technologies","score":0.9923999905586243,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10772","display_name":"Distributed systems and fault tolerance","score":0.9839000105857849,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/replica","display_name":"Replica","score":0.9808555841445923},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7929825782775879},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.7009249925613403},{"id":"https://openalex.org/keywords/server","display_name":"Server","score":0.6685724258422852},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.6068450212478638},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.5508872270584106},{"id":"https://openalex.org/keywords/replication","display_name":"Replication (statistics)","score":0.5075539350509644},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4965279698371887},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.484355092048645},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.4337165355682373},{"id":"https://openalex.org/keywords/web-service","display_name":"Web service","score":0.4120088517665863},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.23323190212249756},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15405568480491638},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.10741469264030457},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.100344717502594}],"concepts":[{"id":"https://openalex.org/C2775937380","wikidata":"https://www.wikidata.org/wiki/Q1232589","display_name":"Replica","level":2,"score":0.9808555841445923},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7929825782775879},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.7009249925613403},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.6685724258422852},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.6068450212478638},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.5508872270584106},{"id":"https://openalex.org/C12590798","wikidata":"https://www.wikidata.org/wiki/Q3933199","display_name":"Replication (statistics)","level":2,"score":0.5075539350509644},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4965279698371887},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.484355092048645},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.4337165355682373},{"id":"https://openalex.org/C35578498","wikidata":"https://www.wikidata.org/wiki/Q193424","display_name":"Web service","level":2,"score":0.4120088517665863},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.23323190212249756},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15405568480491638},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.10741469264030457},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.100344717502594},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/infcom.2004.1356969","is_oa":false,"landing_page_url":"https://doi.org/10.1109/infcom.2004.1356969","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE INFOCOM 2004","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.6.779","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.6.779","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.comp.hkbu.edu.hk/~xujl/Papers/infocom04_replica.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","score":0.550000011920929,"id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320955","display_name":"Hong Kong Baptist University","ror":"https://ror.org/0145fw131"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W1513710402","https://openalex.org/W1527961683","https://openalex.org/W1554376039","https://openalex.org/W1977879268","https://openalex.org/W1997643953","https://openalex.org/W2011039300","https://openalex.org/W2026102701","https://openalex.org/W2047452782","https://openalex.org/W2048666037","https://openalex.org/W2083408498","https://openalex.org/W2092513324","https://openalex.org/W2105808107","https://openalex.org/W2109907478","https://openalex.org/W2111622175","https://openalex.org/W2115344499","https://openalex.org/W2123911680","https://openalex.org/W2128008490","https://openalex.org/W2132987358","https://openalex.org/W2134529269","https://openalex.org/W2136984233","https://openalex.org/W2137269023","https://openalex.org/W2155342207","https://openalex.org/W2161099791","https://openalex.org/W2166120235","https://openalex.org/W2167776925","https://openalex.org/W2476096155","https://openalex.org/W2481666560","https://openalex.org/W3041314857","https://openalex.org/W6631712812","https://openalex.org/W6680537244","https://openalex.org/W6684901892","https://openalex.org/W6779991844"],"related_works":["https://openalex.org/W3013979739","https://openalex.org/W2655578171","https://openalex.org/W2577913821","https://openalex.org/W4296976839","https://openalex.org/W2460131733","https://openalex.org/W2086477304","https://openalex.org/W2170039103","https://openalex.org/W4285552821","https://openalex.org/W2083990828","https://openalex.org/W2255850484"],"abstract_inverted_index":{"The":[0],"rapid":[1],"growth":[2],"of":[3,13,27,41,46,55,71,74,103,120,123,171],"time-critical":[4],"information":[5],"services":[6,94],"and":[7,34,60,76,108],"business-oriented":[8],"applications":[9],"is":[10,95],"making":[11],"quality":[12],"service":[14,56,59],"(QoS)":[15],"support":[16],"increasingly":[17],"important":[18],"in":[19],"content":[20],"distribution.":[21],"This":[22],"paper":[23],"investigates":[24],"the":[25,38,44,48,64,67,72,82,88,112,115,121,136,155,168],"problem":[26,91,158],"placing":[28],"object":[29],"replicas":[30,75,124,172],"(e.g.,":[31],"web":[32],"pages":[33],"images)":[35],"to":[36,81,154,166],"meet":[37],"QoS":[39],"requirements":[40],"clients":[42],"with":[43],"objective":[45],"minimizing":[47],"replication":[49],"cost.":[50],"We":[51,85,146],"consider":[52],"two":[53],"classes":[54],"models:":[57],"replica-aware":[58,65,93],"replica-blind":[61,113,160],"service.":[62],"In":[63,111],"model,":[66,114],"servers":[68,116],"are":[69,106,117,164],"aware":[70,119],"locations":[73,122,170],"can":[77],"therefore":[78],"direct":[79],"requests":[80,137],"nearest":[83],"replica.":[84],"show":[86,147],"that":[87,148],"QoS-aware":[89,156],"placement":[90,157],"for":[92,100,159],"NP-complete.":[96],"Several":[97],"heuristic":[98],"algorithms":[99,163],"efficient":[101],"computation":[102],"suboptimal":[104],"solutions":[105,153],"proposed":[107,165],"experimentally":[109],"evaluated.":[110],"not":[118],"or":[125],"even":[126],"their":[127],"existence.":[128],"As":[129],"a":[130],"result,":[131],"each":[132],"replica":[133],"only":[134],"serves":[135],"flowing":[138],"through":[139],"it":[140],"under":[141,173],"some":[142],"given":[143],"routing":[144],"strategy.":[145],"there":[149],"exist":[150],"polynomial":[151],"optimal":[152,169],"services.":[161],"Efficient":[162],"compute":[167],"different":[174],"cost":[175],"models.":[176]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":6},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":5}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}