{"id":"https://openalex.org/W4407555319","doi":"https://doi.org/10.1007/s10015-025-01007-3","title":"Power-law distributions in an online video-sharing system and its long-term dynamics","display_name":"Power-law distributions in an online video-sharing system and its long-term dynamics","publication_year":2025,"publication_date":"2025-02-13","ids":{"openalex":"https://openalex.org/W4407555319","doi":"https://doi.org/10.1007/s10015-025-01007-3"},"language":"en","primary_location":{"id":"doi:10.1007/s10015-025-01007-3","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s10015-025-01007-3","pdf_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01007-3.pdf","source":{"id":"https://openalex.org/S104439334","display_name":"Artificial Life and Robotics","issn_l":"1433-5298","issn":["1433-5298","1614-7456"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Life and Robotics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01007-3.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112072205","display_name":"Kiminori Ito","orcid":null},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Kiminori Ito","raw_affiliation_strings":["Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101557062","display_name":"Takashi Shimada","orcid":"https://orcid.org/0000-0003-3299-1630"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takashi Shimada","raw_affiliation_strings":["Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Systems Innovation, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan","institution_ids":["https://openalex.org/I74801974"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5112072205"],"corresponding_institution_ids":["https://openalex.org/I74801974"],"apc_list":{"value":2990,"currency":"USD","value_usd":2990},"apc_paid":{"value":2990,"currency":"USD","value_usd":2990},"fwci":0.704,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.66287774,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"30","issue":"2","first_page":"325","last_page":"331"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12592","display_name":"Opinion Dynamics and Social Influence","score":0.9997000098228455,"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"}},"topics":[{"id":"https://openalex.org/T12592","display_name":"Opinion Dynamics and Social Influence","score":0.9997000098228455,"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/T10064","display_name":"Complex Network Analysis Techniques","score":0.9995999932289124,"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/T10742","display_name":"Peer-to-Peer Network Technologies","score":0.9452999830245972,"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/term","display_name":"Term (time)","score":0.744884729385376},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7306933403015137},{"id":"https://openalex.org/keywords/dynamics","display_name":"Dynamics (music)","score":0.53146892786026},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.48019683361053467},{"id":"https://openalex.org/keywords/power-law","display_name":"Power law","score":0.46925899386405945},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20697370171546936},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.12050178647041321},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09030187129974365},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.0724535584449768}],"concepts":[{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.744884729385376},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7306933403015137},{"id":"https://openalex.org/C145912823","wikidata":"https://www.wikidata.org/wiki/Q113558","display_name":"Dynamics (music)","level":2,"score":0.53146892786026},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.48019683361053467},{"id":"https://openalex.org/C87040749","wikidata":"https://www.wikidata.org/wiki/Q428971","display_name":"Power law","level":2,"score":0.46925899386405945},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20697370171546936},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.12050178647041321},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09030187129974365},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0724535584449768},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s10015-025-01007-3","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s10015-025-01007-3","pdf_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01007-3.pdf","source":{"id":"https://openalex.org/S104439334","display_name":"Artificial Life and Robotics","issn_l":"1433-5298","issn":["1433-5298","1614-7456"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Life and Robotics","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1007/s10015-025-01007-3","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s10015-025-01007-3","pdf_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01007-3.pdf","source":{"id":"https://openalex.org/S104439334","display_name":"Artificial Life and Robotics","issn_l":"1433-5298","issn":["1433-5298","1614-7456"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Life and Robotics","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G896587599","display_name":"Theoretical study on the robustness and plasticity of ecosystems with high diversity","funder_award_id":"23K03256","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320322832","display_name":"University of Tokyo","ror":"https://ror.org/057zh3y96"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4407555319.pdf","grobid_xml":"https://content.openalex.org/works/W4407555319.grobid-xml"},"referenced_works_count":12,"referenced_works":["https://openalex.org/W1972309850","https://openalex.org/W2020586827","https://openalex.org/W2041161771","https://openalex.org/W2042034885","https://openalex.org/W2062852672","https://openalex.org/W2069849731","https://openalex.org/W2317158840","https://openalex.org/W2902096938","https://openalex.org/W3027482364","https://openalex.org/W3124644065","https://openalex.org/W4250082029","https://openalex.org/W4311572750"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"Abstract":[0],"We":[1],"study":[2],"the":[3,18,48,79,82,93,116,126,131,168,171,183,196,219,238,245],"data":[4],"of":[5,22,89,153,162,170,173,240,252],"Japanese":[6],"video-sharing":[7],"platform,":[8],"Niconico,":[9],"which":[10,124,248],"contains":[11],"21":[12],"million":[13],"videos.":[14],"From":[15],"our":[16],"analysis,":[17],"rank":[19,118,135],"size":[20,169,180],"distribution":[21],"video":[23,90,154,163,174,185,253],"views":[24,91,155,164,186],"is":[25,104,165],"found":[26],"to":[27,63,138,142,218],"exhibit":[28],"a":[29,32,121,143],"crossover":[30],"from":[31,195],"power":[33,65,127],"law":[34],"with":[35,67],"an":[36],"exponent":[37,68],"around":[38,69],"$$-0.5$$":[39],"<mml:math":[40,52,71,96,203,225],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">":[41,53,72,97,204,226],"<mml:mrow>":[42,54,73,98,205,227],"<mml:mo>-</mml:mo>":[43,74,210],"<mml:mn>0.5</mml:mn>":[44],"</mml:mrow>":[45,60,76,101,215,233],"</mml:math>":[46,61,77,102,216,234],"for":[47,78,92,156],"top":[49,117,197],"$$\\approx":[50,223],"10^5$$":[51],"<mml:mo>\u2248</mml:mo>":[55,228],"<mml:msup>":[56,206,211,229],"<mml:mn>10</mml:mn>":[57,207,212,230],"<mml:mn>5</mml:mn>":[58],"</mml:msup>":[59,209,214,232],"movies":[62,80,103],"another":[64],"low":[66,134],"$$-1$$":[70],"<mml:mn>1</mml:mn>":[75],"in":[81,115,130,191],"following":[83],"ranks.":[84],"The":[85],"probability":[86],"density":[87],"function":[88],"bottom":[94,220],"$$90\\%$$":[95],"<mml:mn>90</mml:mn>":[99],"<mml:mo>%</mml:mo>":[100],"well":[105],"fitted":[106],"by":[107,167],"log-normal":[108],"distribution.":[109],"This":[110,236],"implies":[111],"that,":[112],"while":[113],"videos":[114,129],"regime":[119,136],"follow":[120],"different":[122],"dynamics":[123],"yields":[125],"law,":[128],"middle":[132],"and":[133,176],"seem":[137],"be":[139],"evolving":[140],"according":[141],"random":[144],"multiplicative":[145],"process.":[146],"Furthermore,":[147],"we":[148],"observe":[149],"temporal":[150],"relaxation":[151,160,190],"process":[152,161],"3":[157],"years.":[158],"Temporal":[159],"grouped":[166],"number":[172],"views,":[175],"averaged":[177],"within":[178],"each":[179],"group.":[181],"Interestingly,":[182],"daily":[184],"universally":[187,250],"show":[188],"power-law":[189],"all":[192],"view":[193,199],"size,":[194],"total":[198],"group":[200,221],"(":[201,222],"$$10^6-10^7$$":[202],"<mml:mn>6</mml:mn>":[208],"<mml:mn>7</mml:mn>":[213],")":[217],"10^2$$":[224],"<mml:mn>2</mml:mn>":[231],").":[235],"indicates":[237],"existence":[239],"memory":[241],"processes":[242],"longer":[243],"than":[244],"exponential":[246],"function,":[247],"are":[249],"independent":[251],"size.":[254]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}