{"id":"https://openalex.org/W2112964921","doi":"https://doi.org/10.1145/2068816.2068851","title":"Counting YouTube videos via random prefix sampling","display_name":"Counting YouTube videos via random prefix sampling","publication_year":2011,"publication_date":"2011-11-02","ids":{"openalex":"https://openalex.org/W2112964921","doi":"https://doi.org/10.1145/2068816.2068851","mag":"2112964921"},"language":"en","primary_location":{"id":"doi:10.1145/2068816.2068851","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2068816.2068851","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement 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/A5018158708","display_name":"Jia Zhou","orcid":"https://orcid.org/0000-0001-7168-5690"},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Jia Zhou","raw_affiliation_strings":["University of Minnesota, Minneapolis, USA","University of Minnesota, Minneapolis, , USA"],"affiliations":[{"raw_affiliation_string":"University of Minnesota, Minneapolis, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"University of Minnesota, Minneapolis, , USA","institution_ids":["https://openalex.org/I130238516"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100630059","display_name":"Yanhua Li","orcid":"https://orcid.org/0000-0001-8972-503X"},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yanhua Li","raw_affiliation_strings":["University of Minnesota, Minneapolis, USA","University of Minnesota, Minneapolis, , USA"],"affiliations":[{"raw_affiliation_string":"University of Minnesota, Minneapolis, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"University of Minnesota, Minneapolis, , USA","institution_ids":["https://openalex.org/I130238516"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017051725","display_name":"Vijay Kumar Adhikari","orcid":null},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Vijay Kumar Adhikari","raw_affiliation_strings":["University of Minnesota, Minneapolis, USA","University of Minnesota, Minneapolis, , USA"],"affiliations":[{"raw_affiliation_string":"University of Minnesota, Minneapolis, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"University of Minnesota, Minneapolis, , USA","institution_ids":["https://openalex.org/I130238516"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100622097","display_name":"Zhi-Li Zhang","orcid":"https://orcid.org/0000-0001-8584-2319"},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zhi-Li Zhang","raw_affiliation_strings":["University of Minnesota, Minneapolis, USA","University of Minnesota, Minneapolis, , USA"],"affiliations":[{"raw_affiliation_string":"University of Minnesota, Minneapolis, USA","institution_ids":["https://openalex.org/I130238516"]},{"raw_affiliation_string":"University of Minnesota, Minneapolis, , USA","institution_ids":["https://openalex.org/I130238516"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5018158708"],"corresponding_institution_ids":["https://openalex.org/I130238516"],"apc_list":null,"apc_paid":null,"fwci":9.4734,"has_fulltext":false,"cited_by_count":61,"citation_normalized_percentile":{"value":0.98195709,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"371","last_page":"380"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9977999925613403,"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":0.9977999925613403,"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/T10064","display_name":"Complex Network Analysis Techniques","score":0.9975000023841858,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11644","display_name":"Spam and Phishing Detection","score":0.9929999709129333,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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":0.7785229086875916},{"id":"https://openalex.org/keywords/sampling","display_name":"Sampling (signal processing)","score":0.5567806363105774},{"id":"https://openalex.org/keywords/crawling","display_name":"Crawling","score":0.5561147332191467},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.5425813794136047},{"id":"https://openalex.org/keywords/variance","display_name":"Variance (accounting)","score":0.4657761752605438},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.3256516456604004},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12582504749298096},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.10599374771118164},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07881024479866028}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7785229086875916},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.5567806363105774},{"id":"https://openalex.org/C100368936","wikidata":"https://www.wikidata.org/wiki/Q1411725","display_name":"Crawling","level":2,"score":0.5561147332191467},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.5425813794136047},{"id":"https://openalex.org/C196083921","wikidata":"https://www.wikidata.org/wiki/Q7915758","display_name":"Variance (accounting)","level":2,"score":0.4657761752605438},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.3256516456604004},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12582504749298096},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.10599374771118164},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07881024479866028},{"id":"https://openalex.org/C121955636","wikidata":"https://www.wikidata.org/wiki/Q4116214","display_name":"Accounting","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.0},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/2068816.2068851","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2068816.2068851","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.651.335","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.651.335","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://conferences.sigcomm.org/imc/2011/docs/p371.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4399999976158142,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W306234367","https://openalex.org/W950821216","https://openalex.org/W1514107797","https://openalex.org/W1963903779","https://openalex.org/W1971788485","https://openalex.org/W1974487043","https://openalex.org/W1986697120","https://openalex.org/W2007168590","https://openalex.org/W2047443612","https://openalex.org/W2061901927","https://openalex.org/W2082171998","https://openalex.org/W2103799649","https://openalex.org/W2115022330","https://openalex.org/W2118519969","https://openalex.org/W2121761994","https://openalex.org/W2124578016","https://openalex.org/W2128941908","https://openalex.org/W2130416410","https://openalex.org/W2148665476","https://openalex.org/W2162266953","https://openalex.org/W2166596983","https://openalex.org/W2168380307","https://openalex.org/W6679417241"],"related_works":["https://openalex.org/W4393220254","https://openalex.org/W4321258516","https://openalex.org/W2051833850","https://openalex.org/W4287845917","https://openalex.org/W3122602933","https://openalex.org/W2950038056","https://openalex.org/W1544940847","https://openalex.org/W2289285490","https://openalex.org/W3107697994","https://openalex.org/W1563551083"],"abstract_inverted_index":{"Leveraging":[0],"the":[1,29,45,82,101,114,170,185,188,195],"characteristics":[2],"of":[3,13,32,89,104,125,139,161,172],"YouTube":[4,14,90,105,116,129,140,149,191,201],"video":[5,91,150,163],"id":[6],"space":[7],"and":[8,40,53,59,80,118,194],"exploiting":[9],"a":[10,22,123],"unique":[11],"property":[12],"search":[15],"API,":[16],"in":[17],"this":[18,49],"paper":[19],"we":[20,42,146,180],"develop":[21],"random":[23],"prefix":[24],"sampling":[25,78,83,111],"method":[26,50,79,112],"to":[27,66,71,113,199],"estimate":[28,119],"total":[30,124,189],"number":[31,171],"videos":[33,130,141,173],"hosted":[34],"by":[35,131,143,155],"YouTube.":[36],"Through":[37],"theoretical":[38],"modeling":[39],"analysis,":[41],"demonstrate":[43],"that":[44,120,148],"estimator":[46],"based":[47],"on":[48,56,184],"is":[51],"unbiased,":[52],"provide":[54],"bounds":[55,63,186],"its":[57],"variance":[58],"confidence":[60],"interval.":[61],"These":[62],"enable":[64],"us":[65],"judiciously":[67],"select":[68],"sample":[69],"sizes":[70],"control":[72],"estimation":[73],"errors.":[74],"We":[75,107],"evaluate":[76],"our":[77,110,144],"validate":[81],"results":[84],"using":[85,135],"two":[86],"distinct":[87],"collections":[88],"id's":[92],"(namely,":[93],"treating":[94],"each":[95],"collection":[96,103,138],"as":[97],"if":[98],"it":[99],"were":[100],"\"true\"":[102],"videos).":[106],"then":[108],"apply":[109],"live":[115],"system,":[117],"there":[121],"are":[122,165],"roughly":[126],"500":[127],"millions":[128],"May,":[132],"2011.":[133],"Finally,":[134],"an":[136],"unbiased":[137],"sampled":[142],"method,":[145],"show":[147],"view":[151,177],"count":[152],"statistics":[153],"collected":[154],"prior":[156],"methods":[157],"(e.g.,":[158],"through":[159],"crawling":[160],"related":[162],"links)":[164],"highly":[166],"skewed,":[167],"significantly":[168],"under-estimating":[169],"with":[174],"very":[175],"small":[176],"counts":[178],"(<1000);":[179],"also":[181],"shed":[182],"lights":[183],"for":[187],"storage":[190],"must":[192],"have":[193],"network":[196],"capacity":[197],"needed":[198],"delivery":[200],"videos.":[202]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":4},{"year":2018,"cited_by_count":8},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":6},{"year":2015,"cited_by_count":8},{"year":2014,"cited_by_count":11},{"year":2013,"cited_by_count":9},{"year":2012,"cited_by_count":6}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}