{"id":"https://openalex.org/W2810464562","doi":"https://doi.org/10.1145/3204949.3204963","title":"Category-aware hierarchical caching for video-on-demand content on youtube","display_name":"Category-aware hierarchical caching for video-on-demand content on youtube","publication_year":2018,"publication_date":"2018-06-12","ids":{"openalex":"https://openalex.org/W2810464562","doi":"https://doi.org/10.1145/3204949.3204963","mag":"2810464562"},"language":"en","primary_location":{"id":"doi:10.1145/3204949.3204963","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3204949.3204963","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 9th ACM Multimedia Systems Conference","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/A5102707230","display_name":"Christian Koch","orcid":"https://orcid.org/0000-0002-4994-7567"},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technical University of Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Christian Koch","raw_affiliation_strings":["Technische Universit\u00e4t Darmstadt"],"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Darmstadt","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017124750","display_name":"Johannes Pfannm\u00fcller","orcid":null},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technical University of Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Johannes Pfannm\u00fcller","raw_affiliation_strings":["Technische Universit\u00e4t Darmstadt"],"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Darmstadt","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050441394","display_name":"Amr Rizk","orcid":"https://orcid.org/0000-0002-9385-7729"},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technical University of Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Amr Rizk","raw_affiliation_strings":["Technische Universit\u00e4t Darmstadt"],"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Darmstadt","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040083496","display_name":"David Hausheer","orcid":"https://orcid.org/0000-0002-3385-303X"},"institutions":[{"id":"https://openalex.org/I95793202","display_name":"Otto-von-Guericke University Magdeburg","ror":"https://ror.org/00ggpsq73","country_code":"DE","type":"education","lineage":["https://openalex.org/I95793202"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"David Hausheer","raw_affiliation_strings":["Otto-von-Guericke University Magdeburg"],"affiliations":[{"raw_affiliation_string":"Otto-von-Guericke University Magdeburg","institution_ids":["https://openalex.org/I95793202"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004933128","display_name":"Ralf Steinmetz","orcid":"https://orcid.org/0000-0002-6839-9359"},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technical University of Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Ralf Steinmetz","raw_affiliation_strings":["Technische Universit\u00e4t Darmstadt"],"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Darmstadt","institution_ids":["https://openalex.org/I31512782"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5102707230"],"corresponding_institution_ids":["https://openalex.org/I31512782"],"apc_list":null,"apc_paid":null,"fwci":1.4762,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.84127977,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"89","last_page":"100"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":1.0,"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":1.0,"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9746000170707703,"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":0.9714000225067139,"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/computer-science","display_name":"Computer science","score":0.8877356052398682},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.8530927300453186},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6121434569358826},{"id":"https://openalex.org/keywords/smart-cache","display_name":"Smart Cache","score":0.5059239268302917},{"id":"https://openalex.org/keywords/quality-of-experience","display_name":"Quality of experience","score":0.48254913091659546},{"id":"https://openalex.org/keywords/cache-algorithms","display_name":"Cache algorithms","score":0.4409422278404236},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.4342600107192993},{"id":"https://openalex.org/keywords/workload","display_name":"Workload","score":0.4284246563911438},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.4240882098674774},{"id":"https://openalex.org/keywords/cpu-cache","display_name":"CPU cache","score":0.3052283525466919},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.20095306634902954},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.17273259162902832},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.09947651624679565}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8877356052398682},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.8530927300453186},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6121434569358826},{"id":"https://openalex.org/C167713795","wikidata":"https://www.wikidata.org/wiki/Q352090","display_name":"Smart Cache","level":5,"score":0.5059239268302917},{"id":"https://openalex.org/C2779333187","wikidata":"https://www.wikidata.org/wiki/Q3132648","display_name":"Quality of experience","level":3,"score":0.48254913091659546},{"id":"https://openalex.org/C38556500","wikidata":"https://www.wikidata.org/wiki/Q13404475","display_name":"Cache algorithms","level":4,"score":0.4409422278404236},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.4342600107192993},{"id":"https://openalex.org/C2778476105","wikidata":"https://www.wikidata.org/wiki/Q628539","display_name":"Workload","level":2,"score":0.4284246563911438},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.4240882098674774},{"id":"https://openalex.org/C189783530","wikidata":"https://www.wikidata.org/wiki/Q352090","display_name":"CPU cache","level":3,"score":0.3052283525466919},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.20095306634902954},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.17273259162902832},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.09947651624679565}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3204949.3204963","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3204949.3204963","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 9th ACM Multimedia Systems Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320337393","display_name":"Division of Chemistry","ror":"https://ror.org/01ar8dr59"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W1597460884","https://openalex.org/W1963591592","https://openalex.org/W1970777322","https://openalex.org/W1992093395","https://openalex.org/W2003549201","https://openalex.org/W2015558059","https://openalex.org/W2017061485","https://openalex.org/W2021221734","https://openalex.org/W2022254990","https://openalex.org/W2032529564","https://openalex.org/W2041048783","https://openalex.org/W2042227350","https://openalex.org/W2045828497","https://openalex.org/W2048124060","https://openalex.org/W2053724287","https://openalex.org/W2086113250","https://openalex.org/W2089214485","https://openalex.org/W2113812175","https://openalex.org/W2122102131","https://openalex.org/W2150495639","https://openalex.org/W2165766008","https://openalex.org/W2406213739","https://openalex.org/W2479003920","https://openalex.org/W2512499060","https://openalex.org/W2588220790","https://openalex.org/W2621682591","https://openalex.org/W2624026441","https://openalex.org/W2767182737","https://openalex.org/W2886697176"],"related_works":["https://openalex.org/W2031173804","https://openalex.org/W2114386333","https://openalex.org/W2509523906","https://openalex.org/W2363769136","https://openalex.org/W2148571123","https://openalex.org/W3085471909","https://openalex.org/W2041820064","https://openalex.org/W2109715593","https://openalex.org/W2012518269","https://openalex.org/W4234542536"],"abstract_inverted_index":{"Content":[0],"delivery":[1],"networks":[2],"(CDNs)":[3],"carry":[4],"more":[5],"than":[6],"half":[7],"of":[8,29,65,71,83,92,109,115,124,135,145,181],"the":[9,22,27,34,63,66,81,90,107,143,197],"video":[10,38],"content":[11,17,95,137,151],"in":[12,18,113,122,185,217],"today's":[13],"Internet.":[14],"By":[15],"placing":[16],"caches":[19,72],"close":[20],"to":[21,148,205,212,222],"users,":[23],"CDNs":[24],"help":[25],"increasing":[26],"Quality":[28],"Experience,":[30],"e.g.,":[31,100],"by":[32],"decreasing":[33],"delay":[35],"until":[36],"a":[37,93,130,136,174,186,215],"playback":[39],"starts.":[40],"Existing":[41],"works":[42],"on":[43,49],"CDN":[44],"cache":[45,84,116,171,198],"performance":[46,82,108],"focus":[47],"mostly":[48],"distinct":[50],"caching":[51,111,139,156,167],"metrics,":[52],"such":[53],"as":[54,159],"hit":[55,117,199],"rate,":[56],"given":[57],"an":[58,133],"abstract":[59],"workload":[60,96],"model.":[61],"Moreover,":[62],"nature":[64],"geographical":[67],"distribution":[68],"and":[69,103,119,132,173,207],"connection":[70],"is":[73,224],"often":[74],"oversimplified.":[75],"In":[76],"this":[77],"work,":[78],"we":[79,128],"investigate":[80],"hierarchies":[85,203],"while":[86],"taking":[87],"into":[88],"account":[89],"presence":[91],"mixed":[94],"comprising":[97],"multiple":[98,166],"categories,":[99],"news,":[101],"comedy,":[102],"music.":[104],"We":[105,153,192],"consider":[106],"existing":[110],"strategies":[112],"terms":[114,123],"rate":[118,200],"deterioration":[120],"costs":[121],"write":[125,219],"operations.":[126],"Further,":[127],"contribute":[129],"design":[131],"evaluation":[134],"category-aware":[138],"strategy,":[140,157],"which":[141],"has":[142],"benefit":[144],"being":[146],"sensitive":[147],"changing":[149],"category-specific":[150],"popularity.":[152],"evaluate":[154],"our":[155],"denoted":[158],"ACDC":[160,195],"(Adaptive":[161],"Content-Aware":[162],"Designed":[163],"Cache),":[164],"using":[165],"hierarchy":[168],"models,":[169],"different":[170],"sizes,":[172],"real":[175],"world":[176],"trace":[177],"covering":[178],"one":[179],"week":[180],"YouTube":[182],"requests":[183],"observed":[184],"large":[187],"European":[188],"mobile":[189],"ISP":[190],"network.":[191],"demonstrate":[193],"that":[194],"increases":[196],"for":[201],"certain":[202],"up":[204,211,221],"18.39%":[206],"decreases":[208],"transmission":[209],"latency":[210],"12%.":[213],"Additionally,":[214],"decrease":[216],"disk":[218],"operations":[220],"55%":[223],"observed.":[225]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}