{"id":"https://openalex.org/W2025799971","doi":"https://doi.org/10.1109/tkde.2014.2334304","title":"Efficient Notification of Meeting Points for Moving Groups via Independent Safe Regions","display_name":"Efficient Notification of Meeting Points for Moving Groups via Independent Safe Regions","publication_year":2014,"publication_date":"2014-07-01","ids":{"openalex":"https://openalex.org/W2025799971","doi":"https://doi.org/10.1109/tkde.2014.2334304","mag":"2025799971"},"language":"en","primary_location":{"id":"doi:10.1109/tkde.2014.2334304","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2014.2334304","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Knowledge and Data Engineering","raw_type":"journal-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/A5100337051","display_name":"Jing Li","orcid":"https://orcid.org/0000-0003-1160-6959"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Jing Li","raw_affiliation_strings":["Department of Computer Science, University of Hong Kong, Hong Kong","Department of Computer Science, University of Hong Kong, Hong Kong,#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I889458895"]},{"raw_affiliation_string":"Department of Computer Science, University of Hong Kong, Hong Kong,#TAB#","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036837778","display_name":"Jeppe Rishede Thomsen","orcid":null},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Jeppe Rishede Thomsen","raw_affiliation_strings":["Department of Computing, Hong Kong Polytechnic University, Hong Kong","Dept. of Computing, Hong Kong Polytechnic University, Hong Kong#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Computing, Hong Kong Polytechnic University, Hong Kong","institution_ids":["https://openalex.org/I14243506"]},{"raw_affiliation_string":"Dept. of Computing, Hong Kong Polytechnic University, Hong Kong#TAB#","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017431281","display_name":"Man Lung Yiu","orcid":"https://orcid.org/0000-0002-9619-4924"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Man Lung Yiu","raw_affiliation_strings":["Department of Computing, Hong Kong Polytechnic University, Hong Kong","Dept. of Computing, Hong Kong Polytechnic University, Hong Kong#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Computing, Hong Kong Polytechnic University, Hong Kong","institution_ids":["https://openalex.org/I14243506"]},{"raw_affiliation_string":"Dept. of Computing, Hong Kong Polytechnic University, Hong Kong#TAB#","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5045731304","display_name":"Nikos Mamoulis","orcid":null},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Nikos Mamoulis","raw_affiliation_strings":["Department of Computer Science, University of Hong Kong, Hong Kong","Department of Computer Science, University of Hong Kong, Hong Kong,#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I889458895"]},{"raw_affiliation_string":"Department of Computer Science, University of Hong Kong, Hong Kong,#TAB#","institution_ids":["https://openalex.org/I889458895"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5100337051"],"corresponding_institution_ids":["https://openalex.org/I889458895"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.0978588,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"27","issue":"7","first_page":"1767","last_page":"1781"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11106","display_name":"Data Management and Algorithms","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9986000061035156,"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/T10742","display_name":"Peer-to-Peer Network Technologies","score":0.9976000189781189,"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":0.8682478070259094},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.6573613882064819},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5316537022590637},{"id":"https://openalex.org/keywords/point-of-interest","display_name":"Point of interest","score":0.4386396110057831},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3357875943183899},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.33460092544555664},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3304828107357025},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.23671072721481323}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8682478070259094},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.6573613882064819},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5316537022590637},{"id":"https://openalex.org/C150140777","wikidata":"https://www.wikidata.org/wiki/Q960648","display_name":"Point of interest","level":2,"score":0.4386396110057831},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3357875943183899},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.33460092544555664},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3304828107357025},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.23671072721481323},{"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},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/tkde.2014.2334304","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2014.2334304","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Knowledge and Data Engineering","raw_type":"journal-article"},{"id":"pmh:oai:hub.hku.hk:10722/215506","is_oa":false,"landing_page_url":"http://hdl.handle.net/10722/215506","pdf_url":null,"source":{"id":"https://openalex.org/S4377196271","display_name":"The HKU Scholars Hub (University of Hong Kong)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I889458895","host_organization_name":"University of Hong Kong","host_organization_lineage":["https://openalex.org/I889458895"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},{"id":"pmh:oai:ira.lib.polyu.edu.hk:10397/61064","is_oa":false,"landing_page_url":"http://hdl.handle.net/10397/61064","pdf_url":null,"source":{"id":"https://openalex.org/S4306400205","display_name":"PolyU Institutional Research Archive (Hong Kong Polytechnic University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I14243506","host_organization_name":"Hong Kong Polytechnic University","host_organization_lineage":["https://openalex.org/I14243506"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal/Magazine Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4269066423","display_name":null,"funder_award_id":"5302/12E","funder_id":"https://openalex.org/F4320322598","funder_display_name":"Hong Kong Polytechnic University"},{"id":"https://openalex.org/G4571524309","display_name":null,"funder_award_id":"714712E","funder_id":"https://openalex.org/F4320322170","funder_display_name":"University of Hong Kong"}],"funders":[{"id":"https://openalex.org/F4320322170","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86"},{"id":"https://openalex.org/F4320322598","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W1500873048","https://openalex.org/W1516936742","https://openalex.org/W1553387542","https://openalex.org/W1963619741","https://openalex.org/W1976722103","https://openalex.org/W1991812589","https://openalex.org/W1997879853","https://openalex.org/W2001845525","https://openalex.org/W2005947646","https://openalex.org/W2038874086","https://openalex.org/W2059132017","https://openalex.org/W2096109431","https://openalex.org/W2102682774","https://openalex.org/W2114004713","https://openalex.org/W2114405797","https://openalex.org/W2116135393","https://openalex.org/W2117379916","https://openalex.org/W2117913411","https://openalex.org/W2130484192","https://openalex.org/W2131796944","https://openalex.org/W2136046112","https://openalex.org/W2146485383","https://openalex.org/W2151369660","https://openalex.org/W2160281147","https://openalex.org/W2161012437","https://openalex.org/W2164326061","https://openalex.org/W6651987411","https://openalex.org/W6677366547"],"related_works":["https://openalex.org/W3117467770","https://openalex.org/W2236009467","https://openalex.org/W2808111827","https://openalex.org/W4385953720","https://openalex.org/W2152504994","https://openalex.org/W2963275074","https://openalex.org/W2808073819","https://openalex.org/W4385196158","https://openalex.org/W2890423584","https://openalex.org/W3013764321"],"abstract_inverted_index":{"In":[0],"applications":[1],"like":[2],"social":[3],"networking":[4],"services":[5],"and":[6,73,105,133,145,158],"online":[7],"games,":[8],"multiple":[9],"moving":[10],"users":[11],"which":[12,47,75],"form":[13],"a":[14,81,123],"group":[15],"may":[16],"wish":[17],"to":[18,43,56,86,137],"be":[19],"continuously":[20],"notified":[21],"about":[22],"the":[23,35,39,49,57,61,96,126,129,149],"best":[24],"meeting":[25,131],"point":[26,132],"from":[27],"their":[28],"locations.":[29,59],"A":[30],"promising":[31],"technique":[32],"for":[33,109,115],"reducing":[34],"communication":[36,159],"frequency":[37],"of":[38,51,98,125,151,156],"application":[40],"server":[41],"is":[42],"employ":[44],"safe":[45,62,83,99,118],"regions,":[46],"capture":[48],"validity":[50],"query":[52],"results":[53],"with":[54,142],"respect":[55],"users'":[58],"Unfortunately,":[60],"regions":[63,100],"in":[64,101,154],"our":[65,87,102,135,152],"problem":[66,127],"exhibit":[67],"characteristics":[68],"such":[69],"as":[70],"irregular":[71],"shapes":[72,97],"inter-dependencies,":[74],"render":[76],"existing":[77],"methods":[78],"that":[79],"compute":[80],"single":[82],"region":[84],"inapplicable":[85],"problem.":[88],"To":[89],"tackle":[90],"these":[91,117],"challenges,":[92],"we":[93],"first":[94],"examine":[95],"problem's":[103],"context":[104],"propose":[106],"feasible":[107],"approximations":[108],"them.":[110],"We":[111,120],"design":[112],"efficient":[113],"algorithms":[114],"computing":[116],"regions.":[119],"also":[121],"study":[122],"variant":[124],"called":[128],"sum-optimal":[130],"extend":[134],"solutions":[136],"solve":[138],"this":[139],"variant.":[140],"Experiments":[141],"both":[143],"real":[144],"synthetic":[146],"data":[147],"demonstrate":[148],"effectiveness":[150],"proposal":[153],"terms":[155],"computational":[157],"costs.":[160]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
