{"id":"https://openalex.org/W2141540608","doi":"https://doi.org/10.1145/2668332.2668340","title":"GruMon","display_name":"GruMon","publication_year":2014,"publication_date":"2014-11-03","ids":{"openalex":"https://openalex.org/W2141540608","doi":"https://doi.org/10.1145/2668332.2668340","mag":"2141540608"},"language":"en","primary_location":{"id":"doi:10.1145/2668332.2668340","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2668332.2668340","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th ACM Conference on Embedded Network Sensor Systems","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/A5074675503","display_name":"Rijurekha Sen","orcid":"https://orcid.org/0000-0002-2465-3650"},"institutions":[{"id":"https://openalex.org/I4210121786","display_name":"Max Planck Institute for Software Systems","ror":"https://ror.org/02pe2kf23","country_code":"DE","type":"facility","lineage":["https://openalex.org/I149899117","https://openalex.org/I4210121786"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Rijurekha Sen","raw_affiliation_strings":["MPI-SWS"],"affiliations":[{"raw_affiliation_string":"MPI-SWS","institution_ids":["https://openalex.org/I4210121786"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100295770","display_name":"Youngki Lee","orcid":"https://orcid.org/0000-0002-6657-6059"},"institutions":[{"id":"https://openalex.org/I79891267","display_name":"Singapore Management University","ror":"https://ror.org/050qmg959","country_code":"SG","type":"education","lineage":["https://openalex.org/I79891267"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Youngki Lee","raw_affiliation_strings":["Singapore Management University"],"affiliations":[{"raw_affiliation_string":"Singapore Management University","institution_ids":["https://openalex.org/I79891267"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032334667","display_name":"Kasthuri Jayarajah","orcid":"https://orcid.org/0009-0001-0408-0752"},"institutions":[{"id":"https://openalex.org/I79891267","display_name":"Singapore Management University","ror":"https://ror.org/050qmg959","country_code":"SG","type":"education","lineage":["https://openalex.org/I79891267"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Kasthuri Jayarajah","raw_affiliation_strings":["Singapore Management University"],"affiliations":[{"raw_affiliation_string":"Singapore Management University","institution_ids":["https://openalex.org/I79891267"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054849647","display_name":"Archan Misra","orcid":"https://orcid.org/0000-0003-1212-1769"},"institutions":[{"id":"https://openalex.org/I79891267","display_name":"Singapore Management University","ror":"https://ror.org/050qmg959","country_code":"SG","type":"education","lineage":["https://openalex.org/I79891267"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Archan Misra","raw_affiliation_strings":["Singapore Management University"],"affiliations":[{"raw_affiliation_string":"Singapore Management University","institution_ids":["https://openalex.org/I79891267"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5075701279","display_name":"Rajesh Krishna Balan","orcid":"https://orcid.org/0000-0001-6289-9902"},"institutions":[{"id":"https://openalex.org/I79891267","display_name":"Singapore Management University","ror":"https://ror.org/050qmg959","country_code":"SG","type":"education","lineage":["https://openalex.org/I79891267"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Rajesh Krishna Balan","raw_affiliation_strings":["Singapore Management University"],"affiliations":[{"raw_affiliation_string":"Singapore Management University","institution_ids":["https://openalex.org/I79891267"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5074675503"],"corresponding_institution_ids":["https://openalex.org/I4210121786"],"apc_list":null,"apc_paid":null,"fwci":9.1451,"has_fulltext":false,"cited_by_count":89,"citation_normalized_percentile":{"value":0.98314276,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"46","last_page":"60"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"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/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.9969000220298767,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"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/crowds","display_name":"Crowds","score":0.8189374208450317},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7941298484802246},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6581903100013733},{"id":"https://openalex.org/keywords/software-deployment","display_name":"Software deployment","score":0.5814748406410217},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.5037047266960144},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.4844417870044708},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.4489518702030182},{"id":"https://openalex.org/keywords/low-latency","display_name":"Low latency (capital markets)","score":0.44268614053726196},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.4410494267940521},{"id":"https://openalex.org/keywords/host","display_name":"Host (biology)","score":0.4358013868331909},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.41043710708618164},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.37003999948501587},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.2778300642967224},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.23296934366226196},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.22790604829788208},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.2055688202381134},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.16864624619483948},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12787172198295593},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.12639090418815613},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.09357157349586487}],"concepts":[{"id":"https://openalex.org/C2777852691","wikidata":"https://www.wikidata.org/wiki/Q13430821","display_name":"Crowds","level":2,"score":0.8189374208450317},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7941298484802246},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6581903100013733},{"id":"https://openalex.org/C105339364","wikidata":"https://www.wikidata.org/wiki/Q2297740","display_name":"Software deployment","level":2,"score":0.5814748406410217},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.5037047266960144},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.4844417870044708},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.4489518702030182},{"id":"https://openalex.org/C46637626","wikidata":"https://www.wikidata.org/wiki/Q6693015","display_name":"Low latency (capital markets)","level":2,"score":0.44268614053726196},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4410494267940521},{"id":"https://openalex.org/C126831891","wikidata":"https://www.wikidata.org/wiki/Q221673","display_name":"Host (biology)","level":2,"score":0.4358013868331909},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.41043710708618164},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.37003999948501587},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.2778300642967224},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.23296934366226196},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.22790604829788208},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.2055688202381134},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.16864624619483948},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12787172198295593},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.12639090418815613},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.09357157349586487},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/2668332.2668340","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2668332.2668340","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th ACM Conference on Embedded Network Sensor Systems","raw_type":"proceedings-article"},{"id":"pmh:oai:ink.library.smu.edu.sg:sis_research-3656","is_oa":false,"landing_page_url":"https://ink.library.smu.edu.sg/sis_research/2656","pdf_url":null,"source":{"id":"https://openalex.org/S4377196871","display_name":"Institutional Knowledge (InK) - Institutional Knowledge at Singapore Management University (Singapore Management University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I79891267","host_organization_name":"Singapore Management University","host_organization_lineage":["https://openalex.org/I79891267"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"https://doi.org/10.1145/2668332.2668340","raw_type":"Conference Proceeding Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11","score":0.8100000023841858}],"awards":[{"id":"https://openalex.org/G7860799415","display_name":null,"funder_award_id":"MOE2011-T2- 1001","funder_id":"https://openalex.org/F4320320751","funder_display_name":"Ministry of Education - Singapore"}],"funders":[{"id":"https://openalex.org/F4320320709","display_name":"National Research Foundation Singapore","ror":"https://ror.org/03cpyc314"},{"id":"https://openalex.org/F4320320751","display_name":"Ministry of Education - Singapore","ror":"https://ror.org/01kcva023"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W139541242","https://openalex.org/W1544274373","https://openalex.org/W1968103943","https://openalex.org/W1972656783","https://openalex.org/W1972677429","https://openalex.org/W1981398125","https://openalex.org/W1991898702","https://openalex.org/W1994718979","https://openalex.org/W2028618575","https://openalex.org/W2037704979","https://openalex.org/W2041167114","https://openalex.org/W2051376734","https://openalex.org/W2096157747","https://openalex.org/W2105772399","https://openalex.org/W2113146968","https://openalex.org/W2117252912","https://openalex.org/W2117521997","https://openalex.org/W2132914768","https://openalex.org/W2133066471","https://openalex.org/W2143554828","https://openalex.org/W2155461593","https://openalex.org/W2163347789","https://openalex.org/W2165169065","https://openalex.org/W2170102584","https://openalex.org/W2170180237","https://openalex.org/W6684729515"],"related_works":["https://openalex.org/W4240200267","https://openalex.org/W1511510665","https://openalex.org/W3205411230","https://openalex.org/W4286899009","https://openalex.org/W9168048","https://openalex.org/W4300849822","https://openalex.org/W4376480820","https://openalex.org/W3155891479","https://openalex.org/W3029351463","https://openalex.org/W4308600690"],"abstract_inverted_index":{"Real-time":[0],"monitoring":[1,30],"of":[2,43,55,64,77,90],"groups":[3],"and":[4,27,34,66,130,160,181,188,196],"their":[5],"rich":[6],"contexts":[7],"will":[8],"be":[9],"a":[10,25,75,167,182],"key":[11],"building":[12],"block":[13],"for":[14,32,200],"futuristic,":[15],"group-aware":[16],"mobile":[17],"services.":[18],"In":[19],"this":[20],"paper,":[21],"we":[22],"propose":[23],"GruMon,":[24],"fast":[26],"accurate":[28],"group":[29,45],"system":[31],"dense":[33,202],"complex":[35],"urban":[36,57],"spaces.":[37],"GruMon":[38,85,118,141,165],"meets":[39],"the":[40,61,68,91,120],"performance":[41,193],"criteria":[42],"precise":[44],"detection":[46,121],"at":[47,185,194],"low":[48],"latencies":[49],"by":[50,123],"overcoming":[51],"two":[52,154],"critical":[53],"challenges":[54,199],"practical":[56],"spaces,":[58],"namely":[59],"(a)":[60],"high":[62],"density":[63],"crowds,":[65],"(b)":[67],"imprecise":[69],"location":[70,108,114,177],"information":[71,115,129],"available":[72],"indoors.":[73],"Using":[74],"host":[76],"novel":[78],"features":[79],"extracted":[80],"from":[81,145,149,170],"commodity":[82],"smartphone":[83],"sensors,":[84],"can":[86],"detect":[87],"over":[88],"80%":[89],"groups,":[92],"with":[93,104],"97%":[94],"precision,":[95],"using":[96,127],"10":[97],"minutes":[98],"latency":[99,122],"windows,":[100],"even":[101],"in":[102,111,153,158],"venues":[103,112],"limited":[105],"or":[106],"no":[107],"information.":[109],"Moreover,":[110],"where":[113],"is":[116],"available,":[117],"improves":[119],"up":[124],"to":[125,133],"20%":[126],"semantic":[128],"additional":[131],"sensors":[132],"complement":[134],"traditional":[135],"spatio-temporal":[136],"clustering":[137],"approaches.":[138],"We":[139,162],"evaluated":[140],"on":[142,166],"data":[143],"collected":[144],"258":[146],"shopping":[147,156],"episodes":[148],"154":[150],"real":[151],"participants,":[152],"large":[155],"complexes":[157],"Korea":[159],"Singapore.":[161],"also":[163],"tested":[164],"large-scale":[168],"dataset":[169],"an":[171],"international":[172],"airport":[173],"(containing":[174],"\u224837K+":[175],"unlabelled":[176],"traces":[178],"per":[179],"day)":[180],"live":[183],"deployment":[184],"our":[186],"university,":[187],"showed":[189],"both":[190],"GruMon's":[191],"potential":[192],"scale":[195],"various":[197],"scalability":[198],"real-world":[201],"environment":[203],"deployments.":[204]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":8},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":11},{"year":2018,"cited_by_count":9},{"year":2017,"cited_by_count":13},{"year":2016,"cited_by_count":15},{"year":2015,"cited_by_count":14},{"year":2014,"cited_by_count":1}],"updated_date":"2026-03-10T16:38:18.471706","created_date":"2016-06-24T00:00:00"}
