{"id":"https://openalex.org/W2735606267","doi":"https://doi.org/10.1145/3095755","title":"Cloud-Assisted Crowdsourced Livecast","display_name":"Cloud-Assisted Crowdsourced Livecast","publication_year":2017,"publication_date":"2017-07-14","ids":{"openalex":"https://openalex.org/W2735606267","doi":"https://doi.org/10.1145/3095755","mag":"2735606267"},"language":"en","primary_location":{"id":"doi:10.1145/3095755","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3095755","pdf_url":null,"source":{"id":"https://openalex.org/S19610489","display_name":"ACM Transactions on Multimedia Computing Communications and Applications","issn_l":"1551-6857","issn":["1551-6857","1551-6865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Multimedia Computing, Communications, and Applications","raw_type":"journal-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/A5100438397","display_name":"Cong Zhang","orcid":"https://orcid.org/0000-0002-9439-6725"},"institutions":[{"id":"https://openalex.org/I18014758","display_name":"Simon Fraser University","ror":"https://ror.org/0213rcc28","country_code":"CA","type":"education","lineage":["https://openalex.org/I18014758"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Cong Zhang","raw_affiliation_strings":["Simon Fraser University, Burnaby, BC, Canada"],"affiliations":[{"raw_affiliation_string":"Simon Fraser University, Burnaby, BC, Canada","institution_ids":["https://openalex.org/I18014758"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039311485","display_name":"Jiangchuan Liu","orcid":"https://orcid.org/0000-0001-6592-1984"},"institutions":[{"id":"https://openalex.org/I18014758","display_name":"Simon Fraser University","ror":"https://ror.org/0213rcc28","country_code":"CA","type":"education","lineage":["https://openalex.org/I18014758"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Jiangchuan Liu","raw_affiliation_strings":["Simon Fraser University, Burnaby, BC, Canada"],"affiliations":[{"raw_affiliation_string":"Simon Fraser University, Burnaby, BC, Canada","institution_ids":["https://openalex.org/I18014758"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100438272","display_name":"Haiyang Wang","orcid":"https://orcid.org/0000-0001-6148-4924"},"institutions":[{"id":"https://openalex.org/I4210115145","display_name":"University of Minnesota, Duluth","ror":"https://ror.org/01hy4qx27","country_code":"US","type":"education","lineage":["https://openalex.org/I4210115145"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Haiyang Wang","raw_affiliation_strings":["University of Minnesota Duluth, Duluth, MN, USA"],"affiliations":[{"raw_affiliation_string":"University of Minnesota Duluth, Duluth, MN, USA","institution_ids":["https://openalex.org/I4210115145"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5100438397"],"corresponding_institution_ids":["https://openalex.org/I18014758"],"apc_list":null,"apc_paid":null,"fwci":0.6372,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.78121795,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"13","issue":"3s","first_page":"1","last_page":"22"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11165","display_name":"Image and Video Quality Assessment","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11165","display_name":"Image and Video Quality Assessment","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11478","display_name":"Caching and Content Delivery","score":0.9994000196456909,"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":0.9993000030517578,"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/cloud-computing","display_name":"Cloud computing","score":0.794644832611084},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7934751510620117},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.7796821594238281},{"id":"https://openalex.org/keywords/software-deployment","display_name":"Software deployment","score":0.6981584429740906},{"id":"https://openalex.org/keywords/transcoding","display_name":"Transcoding","score":0.6828089952468872},{"id":"https://openalex.org/keywords/trace","display_name":"TRACE (psycholinguistics)","score":0.5410529375076294},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.4581869840621948},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.4533916115760803},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.4494395852088928},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.43296411633491516},{"id":"https://openalex.org/keywords/server","display_name":"Server","score":0.4324144721031189},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.3939354419708252},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.3392794728279114},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.3032280206680298},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1524052619934082},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.14866554737091064},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.14115315675735474},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.0881081223487854}],"concepts":[{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.794644832611084},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7934751510620117},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.7796821594238281},{"id":"https://openalex.org/C105339364","wikidata":"https://www.wikidata.org/wiki/Q2297740","display_name":"Software deployment","level":2,"score":0.6981584429740906},{"id":"https://openalex.org/C134535813","wikidata":"https://www.wikidata.org/wiki/Q1888734","display_name":"Transcoding","level":2,"score":0.6828089952468872},{"id":"https://openalex.org/C75291252","wikidata":"https://www.wikidata.org/wiki/Q1315756","display_name":"TRACE (psycholinguistics)","level":2,"score":0.5410529375076294},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.4581869840621948},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.4533916115760803},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.4494395852088928},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.43296411633491516},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.4324144721031189},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3939354419708252},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.3392794728279114},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.3032280206680298},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1524052619934082},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.14866554737091064},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.14115315675735474},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0881081223487854},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","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/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3095755","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3095755","pdf_url":null,"source":{"id":"https://openalex.org/S19610489","display_name":"ACM Transactions on Multimedia Computing Communications and Applications","issn_l":"1551-6857","issn":["1551-6857","1551-6865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Multimedia Computing, Communications, and Applications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4300000071525574,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320332753","display_name":"Qatar National Research Fund","ror":"https://ror.org/01svaqq28"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W324615742","https://openalex.org/W1490486172","https://openalex.org/W1530612944","https://openalex.org/W1545379711","https://openalex.org/W1602087275","https://openalex.org/W1608877958","https://openalex.org/W1965518800","https://openalex.org/W1977279536","https://openalex.org/W1999743491","https://openalex.org/W2005562282","https://openalex.org/W2054056634","https://openalex.org/W2055972993","https://openalex.org/W2071519731","https://openalex.org/W2081416151","https://openalex.org/W2100538831","https://openalex.org/W2104554226","https://openalex.org/W2117838865","https://openalex.org/W2158542147","https://openalex.org/W2159715570","https://openalex.org/W2396428910","https://openalex.org/W2411658167","https://openalex.org/W2505131069","https://openalex.org/W3099627998"],"related_works":["https://openalex.org/W2359384769","https://openalex.org/W2136286070","https://openalex.org/W1969215655","https://openalex.org/W1521096565","https://openalex.org/W2101538619","https://openalex.org/W2156828418","https://openalex.org/W2887692542","https://openalex.org/W1583359735","https://openalex.org/W901044134","https://openalex.org/W2386155892"],"abstract_inverted_index":{"The":[0],"past":[1],"two":[2],"years":[3],"have":[4,94,142],"witnessed":[5],"an":[6],"explosion":[7],"of":[8,12,53,85,112,126,131,176,186],"a":[9,27,31,82,109,183],"new":[10],"generation":[11],"livecast":[13,32],"services,":[14],"represented":[15],"by":[16,136],"Twitch.tv":[17],",":[18,20,23],"GamingLive":[19],"and":[21,48,63,75,88,99,115,129,154,181,203,214],"Dailymotion":[22],"to":[24,51,70,97,166,206],"name":[25],"but":[26,65],"few.":[28],"With":[29],"such":[30],"service,":[33],"geo-distributed":[34,89],"Internet":[35],"users":[36],"can":[37,199],"broadcast":[38],"any":[39,143],"event":[40],"in":[41,123],"real-time,":[42],"for":[43,188],"example,":[44],"game,":[45],"cooking,":[46],"drawing,":[47],"so":[49],"on,":[50],"viewers":[52,64,144],"interest.":[54],"Its":[55],"crowdsourced":[56],"nature":[57],"enables":[58],"rich":[59],"interactions":[60],"among":[61],"broadcasters":[62,87,117,138],"also":[66],"introduces":[67],"great":[68,73,164],"challenges":[69],"accommodate":[71],"their":[72],"scales":[74],"dynamics.":[76],"To":[77],"fulfill":[78],"the":[79,113,137,151,160,174,207],"demands":[80],"from":[81],"large":[83],"number":[84],"heterogeneous":[86],"viewers,":[90],"expensive":[91],"server":[92],"clusters":[93],"been":[95],"deployed":[96],"ingest":[98],"transcode":[100],"live":[101],"streams.":[102],"Yet":[103],"our":[104,196],"Twitch-based":[105],"measurement":[106,153],"shows":[107],"that":[108,159,195],"significant":[110],"portion":[111],"unpopular":[114],"dynamic":[116],"are":[118,134],"consuming":[119],"considerable":[120],"system":[121,216],"resources;":[122],"particular,":[124],"25%":[125],"bandwidth":[127],"resources":[128],"30%":[130],"computational":[132],"capacity":[133],"used":[135],"who":[139],"do":[140],"not":[141],"at":[145],"all.":[146],"In":[147],"this":[148],"article,":[149],"through":[150],"real-world":[152],"data":[155],"analysis,":[156],"we":[157],"show":[158,194],"public":[161],"cloud":[162,209],"has":[163],"potentials":[165],"address":[167],"these":[168],"scalability":[169],"challenges.":[170],"We":[171],"accordingly":[172],"present":[173],"design":[175,198],"Cloud-assisted":[177],"Crowdsourced":[178],"Livecast":[179],"(CACL)":[180],"propose":[182],"comprehensive":[184],"set":[185],"solutions":[187],"broadcaster":[189],"partitioning.":[190],"Our":[191],"trace-driven":[192],"evaluations":[193],"CACL":[197],"smartly":[200],"assign":[201],"ingesting":[202],"transcoding":[204],"tasks":[205],"elastic":[208],"virtual":[210],"machines,":[211],"providing":[212],"flexible":[213],"cost-effective":[215],"deployment.":[217]},"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}