{"id":"https://openalex.org/W2125938788","doi":"https://doi.org/10.1145/1978782.1978783","title":"Minimizing movement in mobile facility location problems","display_name":"Minimizing movement in mobile facility location problems","publication_year":2011,"publication_date":"2011-07-01","ids":{"openalex":"https://openalex.org/W2125938788","doi":"https://doi.org/10.1145/1978782.1978783","mag":"2125938788"},"language":"en","primary_location":{"id":"doi:10.1145/1978782.1978783","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1978782.1978783","pdf_url":null,"source":{"id":"https://openalex.org/S137348503","display_name":"ACM Transactions on Algorithms","issn_l":"1549-6325","issn":["1549-6325","1549-6333"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Algorithms","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/A5020188279","display_name":"Zachary Friggstad","orcid":"https://orcid.org/0000-0003-4039-3235"},"institutions":[{"id":"https://openalex.org/I154425047","display_name":"University of Alberta","ror":"https://ror.org/0160cpw27","country_code":"CA","type":"education","lineage":["https://openalex.org/I154425047"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Zachary Friggstad","raw_affiliation_strings":["University of Alberta, Edmonton, Alberta, Canada","University of Alberta, Edmonton, Alberta., Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Alberta, Edmonton, Alberta, Canada","institution_ids":["https://openalex.org/I154425047"]},{"raw_affiliation_string":"University of Alberta, Edmonton, Alberta., Canada","institution_ids":["https://openalex.org/I154425047"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010339836","display_name":"Mohammad R. Salavatipour","orcid":"https://orcid.org/0000-0002-7650-2045"},"institutions":[{"id":"https://openalex.org/I154425047","display_name":"University of Alberta","ror":"https://ror.org/0160cpw27","country_code":"CA","type":"education","lineage":["https://openalex.org/I154425047"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Mohammad R. Salavatipour","raw_affiliation_strings":["University of Alberta, Edmonton, Alberta, Canada","University of Alberta, Edmonton, Alberta., Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Alberta, Edmonton, Alberta, Canada","institution_ids":["https://openalex.org/I154425047"]},{"raw_affiliation_string":"University of Alberta, Edmonton, Alberta., Canada","institution_ids":["https://openalex.org/I154425047"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I154425047"],"apc_list":null,"apc_paid":null,"fwci":4.7641,"has_fulltext":false,"cited_by_count":38,"citation_normalized_percentile":{"value":0.94755159,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"7","issue":"3","first_page":"1","last_page":"22"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11502","display_name":"Facility Location and Emergency Management","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1407","display_name":"Organizational Behavior and Human Resource Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11502","display_name":"Facility Location and Emergency Management","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1407","display_name":"Organizational Behavior and Human Resource Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10567","display_name":"Vehicle Routing Optimization Methods","score":0.9958000183105469,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing 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/T12546","display_name":"Smart Parking Systems Research","score":0.9865999817848206,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/facility-location-problem","display_name":"Facility location problem","score":0.8822313547134399},{"id":"https://openalex.org/keywords/approximation-algorithm","display_name":"Approximation algorithm","score":0.5975344777107239},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5894892811775208},{"id":"https://openalex.org/keywords/1-center-problem","display_name":"1-center problem","score":0.5010483264923096},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.4331706166267395},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.41967397928237915},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4055942893028259},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3578907251358032},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2859351634979248},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.08426126837730408}],"concepts":[{"id":"https://openalex.org/C108005400","wikidata":"https://www.wikidata.org/wiki/Q1305598","display_name":"Facility location problem","level":2,"score":0.8822313547134399},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.5975344777107239},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5894892811775208},{"id":"https://openalex.org/C50524431","wikidata":"https://www.wikidata.org/wiki/Q4545814","display_name":"1-center problem","level":3,"score":0.5010483264923096},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.4331706166267395},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.41967397928237915},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4055942893028259},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3578907251358032},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2859351634979248},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.08426126837730408},{"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/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1978782.1978783","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1978782.1978783","pdf_url":null,"source":{"id":"https://openalex.org/S137348503","display_name":"ACM Transactions on Algorithms","issn_l":"1549-6325","issn":["1549-6325","1549-6333"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Algorithms","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.4399999976158142}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W113414296","https://openalex.org/W1559577696","https://openalex.org/W1580603885","https://openalex.org/W1658640257","https://openalex.org/W1854155592","https://openalex.org/W1973529814","https://openalex.org/W1975442866","https://openalex.org/W1978117135","https://openalex.org/W1987038930","https://openalex.org/W1987503114","https://openalex.org/W2003207175","https://openalex.org/W2006514056","https://openalex.org/W2023770210","https://openalex.org/W2041571997","https://openalex.org/W2046554800","https://openalex.org/W2052494364","https://openalex.org/W2057010620","https://openalex.org/W2066745247","https://openalex.org/W2076746184","https://openalex.org/W2082353536","https://openalex.org/W2101622070","https://openalex.org/W2109549136","https://openalex.org/W2115907477","https://openalex.org/W2139841919","https://openalex.org/W2142133329","https://openalex.org/W2177090493","https://openalex.org/W2180193454","https://openalex.org/W2617047680","https://openalex.org/W2809211406","https://openalex.org/W2988480584","https://openalex.org/W3030774092","https://openalex.org/W3148765228","https://openalex.org/W3149604617","https://openalex.org/W4213375714","https://openalex.org/W4255529553","https://openalex.org/W4285719527","https://openalex.org/W4389615663","https://openalex.org/W6644040475"],"related_works":["https://openalex.org/W276709744","https://openalex.org/W2006514056","https://openalex.org/W4385597667","https://openalex.org/W2074682523","https://openalex.org/W2173317315","https://openalex.org/W2476148062","https://openalex.org/W4248426730","https://openalex.org/W1509863433","https://openalex.org/W1516365398","https://openalex.org/W1489978714"],"abstract_inverted_index":{"In":[0],"the":[1,11,54,69,78,97,101,109,133,145,169,190,210,217],"mobile":[2,137,173,194],"facility":[3,13,16,42,138,174,195],"location":[4,24,139,175,196],"problem,":[5,197,211],"which":[6,52],"is":[7,19,32,47,53,164,179,226],"a":[8,22,26,35,50,62,127,204,207],"variant":[9,149],"of":[10,56,61,99,104,116],"classical":[12,110],"location,":[14],"each":[15,39],"and":[17,29,41,73,106,150],"client":[18,40,46,84],"assigned":[20],"to":[21,33,49],"start":[23],"in":[25,90,186],"metric":[27],"graph":[28],"our":[30],"goal":[31],"find":[34],"destination":[36,55],"node":[37,51],"for":[38,132,144,153,168,209],"such":[43],"that":[44,200],"every":[45],"sent":[48],"some":[57],"facility.":[58,86],"The":[59,114],"quality":[60],"solution":[63],"can":[64],"be":[65],"measured":[66],"either":[67],"by":[68,77,82,121,181,221],"total":[70,102,147,171],"distance":[71,80],"clients":[72,107],"facilities":[74,105],"travel":[75],"or":[76,85],"maximum":[79,135,192],"traveled":[81],"any":[83],"As":[87],"we":[88,198,201],"show":[89,199],"this":[91],"article":[92],"(by":[93],"an":[94,142,165,183],"approximation-preserving":[95],"reduction),":[96],"problem":[98,140],"minimizing":[100],"movement":[103,117,136,148,172,193],"generalizes":[108],"k":[111],"-median":[112],"problem.":[113,176],"class":[115],"problems":[118],"was":[119,130],"introduced":[120],"Demaine":[122,222],"et":[123,223],"al.":[124,224],"[2007]":[125,225],"where":[126],"simple":[128,218],"2-approximation":[129,208],"proposed":[131,220],"minimum":[134,146,170,191],"while":[141],"approximation":[143],"hardness":[151],"results":[152],"both":[154],"were":[155],"left":[156],"as":[157],"open":[158],"problems.":[159],"Our":[160,177],"main":[161],"result":[162],"here":[163],"8-approximation":[166],"algorithm":[167,178,219],"obtained":[180],"rounding":[182],"LP":[184],"relaxation":[185],"five":[187],"phases.":[188],"For":[189],"cannot":[202],"have":[203],"better":[205],"than":[206],"unless":[212],"P":[213],"=":[214],"NP":[215],"so":[216],"essentially":[227],"best":[228],"possible.":[229]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":5}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
