{"id":"https://openalex.org/W2914769765","doi":"https://doi.org/10.1145/3308558.3313673","title":"Event-Driven Analysis of Crowd Dynamics in the Black Lives Matter Online Social Movement","display_name":"Event-Driven Analysis of Crowd Dynamics in the Black Lives Matter Online Social Movement","publication_year":2019,"publication_date":"2019-05-13","ids":{"openalex":"https://openalex.org/W2914769765","doi":"https://doi.org/10.1145/3308558.3313673","mag":"2914769765"},"language":"en","primary_location":{"id":"doi:10.1145/3308558.3313673","doi":"https://doi.org/10.1145/3308558.3313673","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3308558.3313673","pdf_url":null,"source":{"id":"https://openalex.org/S7407088480","display_name":"International World Wide Web Conference (WWW)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The World Wide Web Conference","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1145/3308558.3313673","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5059015074","display_name":"Hao Peng","orcid":"https://orcid.org/0000-0002-5668-1680","observed_orcids":["https://orcid.org/0000-0002-5668-1680"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hao Peng","raw_affiliation_strings":["University of Michigan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Michigan","institution_ids":["https://openalex.org/I27837315"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086827245","display_name":"Ceren Budak","orcid":"https://orcid.org/0000-0002-7767-3217","observed_orcids":["https://orcid.org/0000-0002-7767-3217"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ceren Budak","raw_affiliation_strings":["University of Michigan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Michigan","institution_ids":["https://openalex.org/I27837315"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064158757","display_name":"Daniel M. Romero","orcid":"https://orcid.org/0000-0002-8351-3463","observed_orcids":["https://orcid.org/0000-0002-8351-3463"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Daniel M. Romero","raw_affiliation_strings":["University of Michigan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Michigan","institution_ids":["https://openalex.org/I27837315"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I27837315"],"apc_list":null,"apc_paid":null,"fwci":2.7343,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.89995982,"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":"3137","last_page":"3143"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10557","display_name":"Social Media and Politics","score":0.9789999723434448,"subfield":{"id":"https://openalex.org/subfields/3315","display_name":"Communication"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10557","display_name":"Social Media and Politics","score":0.9789999723434448,"subfield":{"id":"https://openalex.org/subfields/3315","display_name":"Communication"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10064","display_name":"Complex Network Analysis Techniques","score":0.01209999993443489,"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/T12592","display_name":"Opinion Dynamics and Social Influence","score":0.003599999938160181,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/black-lives-matter","display_name":"Black Lives Matter","score":0.9200000166893005},{"id":"https://openalex.org/keywords/online-social-movements","display_name":"online social movements","score":0.996999979019165},{"id":"https://openalex.org/keywords/crowd-dynamics","display_name":"crowd dynamics","score":0.9860000014305115},{"id":"https://openalex.org/keywords/police-violence","display_name":"police brutality","score":0.9300000071525574},{"id":"https://openalex.org/keywords/protest","display_name":"protest","score":0.9419999718666077},{"id":"https://openalex.org/keywords/movement-recruitment","display_name":"movement recruitment","score":0.7960000038146973},{"id":"https://openalex.org/keywords/social-ties","display_name":"social ties","score":0.7950000166893005},{"id":"https://openalex.org/keywords/collective-behavior","display_name":"collective behavior","score":0.6420000195503235},{"id":"https://openalex.org/keywords/twitter","display_name":"Twitter","score":0.5320000052452087}],"concepts":[{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6672759652137756},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.6332080364227295},{"id":"https://openalex.org/C142189719","wikidata":"https://www.wikidata.org/wiki/Q1276633","display_name":"Interpersonal ties","level":2,"score":0.6312909126281738},{"id":"https://openalex.org/C145912823","wikidata":"https://www.wikidata.org/wiki/Q113558","display_name":"Dynamics (music)","level":2,"score":0.6274693608283997},{"id":"https://openalex.org/C2780226923","wikidata":"https://www.wikidata.org/wiki/Q929848","display_name":"Movement (music)","level":2,"score":0.5414292216300964},{"id":"https://openalex.org/C518677369","wikidata":"https://www.wikidata.org/wiki/Q202833","display_name":"Social media","level":2,"score":0.5407218337059021},{"id":"https://openalex.org/C44042526","wikidata":"https://www.wikidata.org/wiki/Q1355183","display_name":"Crowd psychology","level":2,"score":0.4687006175518036},{"id":"https://openalex.org/C555826173","wikidata":"https://www.wikidata.org/wiki/Q7174","display_name":"Democracy","level":3,"score":0.46669819951057434},{"id":"https://openalex.org/C2780102126","wikidata":"https://www.wikidata.org/wiki/Q10928179","display_name":"Online and offline","level":2,"score":0.46225494146347046},{"id":"https://openalex.org/C67469775","wikidata":"https://www.wikidata.org/wiki/Q304922","display_name":"Social dynamics","level":2,"score":0.43064019083976746},{"id":"https://openalex.org/C123108692","wikidata":"https://www.wikidata.org/wiki/Q49773","display_name":"Social movement","level":3,"score":0.423692524433136},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.3234865367412567},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.2994801998138428},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.2848129868507385},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.2546999454498291},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.23640656471252441},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.21175330877304077},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.1970580518245697},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.14422607421875},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"score":0.09448382258415222},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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/C107038049","wikidata":"https://www.wikidata.org/wiki/Q35986","display_name":"Aesthetics","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3308558.3313673","doi":"https://doi.org/10.1145/3308558.3313673","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3308558.3313673","pdf_url":null,"source":{"id":"https://openalex.org/S7407088480","display_name":"International World Wide Web Conference (WWW)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The World Wide Web Conference","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3308558.3313673","doi":"https://doi.org/10.1145/3308558.3313673","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3308558.3313673","pdf_url":null,"source":{"id":"https://openalex.org/S7407088480","display_name":"International World Wide Web Conference (WWW)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The World Wide Web Conference","raw_type":"proceedings-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, justice, and strong institutions","score":0.8999999761581421}],"sustainable_development_goals_aurora":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, justice, and strong institutions","score":0.699999988079071}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W4212271","https://openalex.org/W1545250210","https://openalex.org/W1970768240","https://openalex.org/W1971204783","https://openalex.org/W1998002546","https://openalex.org/W2003998314","https://openalex.org/W2017802096","https://openalex.org/W2027136616","https://openalex.org/W2058427515","https://openalex.org/W2071996807","https://openalex.org/W2092313193","https://openalex.org/W2121385447","https://openalex.org/W2123835189","https://openalex.org/W2125940194","https://openalex.org/W2143399577","https://openalex.org/W2182274767","https://openalex.org/W2262364653","https://openalex.org/W2330944470","https://openalex.org/W2333275790","https://openalex.org/W2498735447","https://openalex.org/W2574434649","https://openalex.org/W2606411279","https://openalex.org/W2620659750","https://openalex.org/W2760462986","https://openalex.org/W2772728402","https://openalex.org/W2773562361","https://openalex.org/W2891161640","https://openalex.org/W2951645620","https://openalex.org/W2962907576","https://openalex.org/W3098374147","https://openalex.org/W3122066145","https://openalex.org/W3124173250","https://openalex.org/W4244683659","https://openalex.org/W4299397191","https://openalex.org/W4299788974"],"related_works":["https://openalex.org/W1971204783","https://openalex.org/W2574434649","https://openalex.org/W7095643254","https://openalex.org/W3047652797","https://openalex.org/W6962466210","https://openalex.org/W4409871218","https://openalex.org/W2130515272","https://openalex.org/W4411708095","https://openalex.org/W7104031480","https://openalex.org/W3106348408"],"abstract_inverted_index":{"Online":[0],"social":[1,109,165],"movements":[2],"(OSMs)":[3],"play":[4,93],"a":[5,58],"key":[6],"role":[7],"in":[8,11,30,96,114,157,219],"promoting":[9],"democracy":[10],"modern":[12],"society.":[13],"Most":[14],"online":[15],"activism":[16],"is":[17],"largely":[18],"driven":[19],"by":[20,101],"critical":[21],"offline":[22,42,67,75],"events.":[23],"Among":[24],"many":[25],"studies":[26],"investigating":[27],"collective":[28,217],"behavior":[29,82,218],"OSMs,":[31],"few":[32],"has":[33],"explored":[34],"the":[35,47,97,103,115,121,150,153,158,192,204,210,220],"interaction":[36],"between":[37],"crowd":[38,81],"dynamics":[39,105],"and":[40,52,64,78,91,106,127,213],"their":[41],"context.":[43],"Here,":[44],"focusing":[45],"on":[46,57,203,209],"Black":[48,221],"Lives":[49,222],"Matter":[50,223],"OSM":[51],"utilizing":[53],"an":[54],"event-driven":[55],"approach":[56],"dataset":[59],"of":[60,66,74,108,206,216],"36":[61],"million":[62],"tweets":[63],"thousands":[65],"events,":[68],"we":[69,111,162],"study":[70],"how":[71],"different":[72],"types":[73],"events-police":[76],"violence":[77,89,125,170],"heightened":[79],"protests-influence":[80],"over":[83,178],"time.":[84],"We":[85],"find":[86,112],"that":[87,164],"police":[88,124,169],"events":[90,126,171,208],"protests":[92,128,190],"important":[94],"roles":[95],"recruitment":[98],"process.":[99],"Moreover,":[100],"analyzing":[102],"re-participation":[104],"patterns":[107,215],"interactions,":[110],"that,":[113],"long":[116],"term,":[117],"users":[118,141],"who":[119,135],"joined":[120,136],"movement":[122,151],"during":[123,137,143,168,183,189],"show":[129],"significantly":[130],"more":[131,147,173],"commitment":[132],"than":[133,152,180],"those":[134,181],"other":[138,144,154,184],"times.":[139,185],"However,":[140],"recruited":[142],"times":[145],"are":[146,172,191],"committed":[148],"to":[149,175,195],"two":[155],"groups":[156],"short":[159],"term.":[160],"Furthermore,":[161],"observe":[163],"ties":[166,187],"formed":[167,182,188],"likely":[174,194],"be":[176,196],"sustained":[177],"time":[179],"Contrarily,":[186],"least":[193],"maintained.":[197],"Altogether,":[198],"our":[199],"results":[200],"shed":[201],"light":[202],"impact":[205],"bursting":[207],"recruitment,":[211],"retention,":[212],"communication":[214],"OSM.":[224]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2}],"updated_date":"2026-10-26T11:51:55.731654","created_date":"2019-02-21T00:00:00"}