{"id":"https://openalex.org/W2923257088","doi":"https://doi.org/10.1109/jiot.2019.2907605","title":"Cloudlet Placement and Task Allocation in Mobile Edge Computing","display_name":"Cloudlet Placement and Task Allocation in Mobile Edge Computing","publication_year":2019,"publication_date":"2019-03-26","ids":{"openalex":"https://openalex.org/W2923257088","doi":"https://doi.org/10.1109/jiot.2019.2907605","mag":"2923257088"},"language":"en","primary_location":{"id":"doi:10.1109/jiot.2019.2907605","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2019.2907605","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Internet of Things Journal","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://resolver.sub.uni-goettingen.de/purl?gro-2/135603","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5051317379","display_name":"Song Yang","orcid":"https://orcid.org/0000-0002-5385-1402"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Song Yang","raw_affiliation_strings":["School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100373560","display_name":"Fan Li","orcid":"https://orcid.org/0000-0002-2348-4488"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fan Li","raw_affiliation_strings":["School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047030842","display_name":"Meng Shen","orcid":"https://orcid.org/0000-0002-1867-0972"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Meng Shen","raw_affiliation_strings":["School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100385692","display_name":"Xu Chen","orcid":"https://orcid.org/0000-0001-9943-6020"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xu Chen","raw_affiliation_strings":["School of Data and Computer Science, Sun Yat-sen University, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Data and Computer Science, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018318168","display_name":"Xiaoming Fu","orcid":"https://orcid.org/0000-0002-8012-4753"},"institutions":[{"id":"https://openalex.org/I74656192","display_name":"University of G\u00f6ttingen","ror":"https://ror.org/01y9bpm73","country_code":"DE","type":"education","lineage":["https://openalex.org/I74656192"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Xiaoming Fu","raw_affiliation_strings":["Institute of Computer Science, University of G\u00f6ttingen, G\u00f6ttingen, Germany"],"affiliations":[{"raw_affiliation_string":"Institute of Computer Science, University of G\u00f6ttingen, G\u00f6ttingen, Germany","institution_ids":["https://openalex.org/I74656192"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100445368","display_name":"Yu Wang","orcid":"https://orcid.org/0000-0003-3511-0288"},"institutions":[{"id":"https://openalex.org/I102149020","display_name":"University of North Carolina at Charlotte","ror":"https://ror.org/04dawnj30","country_code":"US","type":"education","lineage":["https://openalex.org/I102149020"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yu Wang","raw_affiliation_strings":["Department of Computer Science, University of North Carolina at Charlotte, Charlotte, NC, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of North Carolina at Charlotte, Charlotte, NC, USA","institution_ids":["https://openalex.org/I102149020"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5051317379"],"corresponding_institution_ids":["https://openalex.org/I125839683"],"apc_list":null,"apc_paid":null,"fwci":15.2259,"has_fulltext":false,"cited_by_count":128,"citation_normalized_percentile":{"value":0.99229227,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":100},"biblio":{"volume":"6","issue":"3","first_page":"5853","last_page":"5863"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10273","display_name":"IoT and Edge/Fog Computing","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10273","display_name":"IoT and Edge/Fog Computing","score":0.9998999834060669,"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"}},{"id":"https://openalex.org/T10714","display_name":"Software-Defined Networks and 5G","score":0.9950000047683716,"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"}},{"id":"https://openalex.org/T10101","display_name":"Cloud Computing and Resource Management","score":0.9947999715805054,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/cloudlet","display_name":"Cloudlet","score":0.947959840297699},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8632363080978394},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.6979212760925293},{"id":"https://openalex.org/keywords/mobile-edge-computing","display_name":"Mobile edge computing","score":0.6277985572814941},{"id":"https://openalex.org/keywords/energy-consumption","display_name":"Energy consumption","score":0.6030557155609131},{"id":"https://openalex.org/keywords/heuristics","display_name":"Heuristics","score":0.5640942454338074},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.5622218251228333},{"id":"https://openalex.org/keywords/mobile-cloud-computing","display_name":"Mobile cloud computing","score":0.5581846833229065},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.5494614243507385},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.49237191677093506},{"id":"https://openalex.org/keywords/task","display_name":"Task (project management)","score":0.4616613984107971},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.43621063232421875},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.14893683791160583}],"concepts":[{"id":"https://openalex.org/C2781055072","wikidata":"https://www.wikidata.org/wiki/Q25325266","display_name":"Cloudlet","level":3,"score":0.947959840297699},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8632363080978394},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.6979212760925293},{"id":"https://openalex.org/C2776061582","wikidata":"https://www.wikidata.org/wiki/Q25325231","display_name":"Mobile edge computing","level":3,"score":0.6277985572814941},{"id":"https://openalex.org/C2780165032","wikidata":"https://www.wikidata.org/wiki/Q16869822","display_name":"Energy consumption","level":2,"score":0.6030557155609131},{"id":"https://openalex.org/C127705205","wikidata":"https://www.wikidata.org/wiki/Q5748245","display_name":"Heuristics","level":2,"score":0.5640942454338074},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.5622218251228333},{"id":"https://openalex.org/C2779191767","wikidata":"https://www.wikidata.org/wiki/Q6887075","display_name":"Mobile cloud computing","level":3,"score":0.5581846833229065},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.5494614243507385},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.49237191677093506},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.4616613984107971},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.43621063232421875},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.14893683791160583},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"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/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/jiot.2019.2907605","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2019.2907605","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Internet of Things Journal","raw_type":"journal-article"},{"id":"pmh:oai:publications.goettingen-research-online.de:2/135603","is_oa":true,"landing_page_url":"https://resolver.sub.uni-goettingen.de/purl?gro-2/135603","pdf_url":null,"source":{"id":"https://openalex.org/S4306401634","display_name":"GoeScholar  The Publication Server of the Georg-August-Universit\u00e4t G\u00f6ttingen (Georg-August-Universit\u00e4t G\u00f6ttingen)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210122495","host_organization_name":"Asklepios Klinik St. Georg","host_organization_lineage":["https://openalex.org/I4210122495"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:publications.goettingen-research-online.de:2/135603","is_oa":true,"landing_page_url":"https://resolver.sub.uni-goettingen.de/purl?gro-2/135603","pdf_url":null,"source":{"id":"https://openalex.org/S4306401634","display_name":"GoeScholar  The Publication Server of the Georg-August-Universit\u00e4t G\u00f6ttingen (Georg-August-Universit\u00e4t G\u00f6ttingen)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210122495","host_organization_name":"Asklepios Klinik St. Georg","host_organization_lineage":["https://openalex.org/I4210122495"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"},"sustainable_development_goals":[{"score":0.8700000047683716,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G2916598006","display_name":null,"funder_award_id":"61802018","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3167722615","display_name":null,"funder_award_id":"61602039","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G347077457","display_name":null,"funder_award_id":"69A3351747133","funder_id":"https://openalex.org/F4320306108","funder_display_name":"U.S. Department of Transportation"},{"id":"https://openalex.org/G3575291560","display_name":null,"funder_award_id":"61370192","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3844266109","display_name":null,"funder_award_id":"4192051","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"},{"id":"https://openalex.org/G3904721093","display_name":null,"funder_award_id":"2018YFB0803405","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G5121664804","display_name":null,"funder_award_id":"U1711265","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5894644143","display_name":null,"funder_award_id":"61772077","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6518367120","display_name":null,"funder_award_id":"4192050","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"},{"id":"https://openalex.org/G7620713641","display_name":null,"funder_award_id":"607584","funder_id":"https://openalex.org/F4320320367","funder_display_name":"Cleansky"},{"id":"https://openalex.org/G7949432300","display_name":null,"funder_award_id":"61572347","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320306108","display_name":"U.S. Department of Transportation","ror":"https://ror.org/02xfw2e90"},{"id":"https://openalex.org/F4320320367","display_name":"Cleansky","ror":"https://ror.org/03nv0z257"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322919","display_name":"Natural Science Foundation of Beijing Municipality","ror":null},{"id":"https://openalex.org/F4320323110","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":55,"referenced_works":["https://openalex.org/W1546461095","https://openalex.org/W1969299781","https://openalex.org/W1981178382","https://openalex.org/W2011039300","https://openalex.org/W2028964022","https://openalex.org/W2044121814","https://openalex.org/W2060656154","https://openalex.org/W2078175757","https://openalex.org/W2116304419","https://openalex.org/W2125560635","https://openalex.org/W2133557258","https://openalex.org/W2135099885","https://openalex.org/W2147118406","https://openalex.org/W2169036364","https://openalex.org/W2169595662","https://openalex.org/W2275530856","https://openalex.org/W2343140702","https://openalex.org/W2394115245","https://openalex.org/W2400861403","https://openalex.org/W2516316490","https://openalex.org/W2525400794","https://openalex.org/W2560324934","https://openalex.org/W2592324122","https://openalex.org/W2594560857","https://openalex.org/W2600533184","https://openalex.org/W2624989916","https://openalex.org/W2681138350","https://openalex.org/W2727638186","https://openalex.org/W2733253862","https://openalex.org/W2740186459","https://openalex.org/W2751904527","https://openalex.org/W2763507273","https://openalex.org/W2763982073","https://openalex.org/W2764122222","https://openalex.org/W2766136152","https://openalex.org/W2768296796","https://openalex.org/W2778138942","https://openalex.org/W2782002868","https://openalex.org/W2785208313","https://openalex.org/W2790257945","https://openalex.org/W2794311034","https://openalex.org/W2800933054","https://openalex.org/W2809740924","https://openalex.org/W2829760985","https://openalex.org/W2891591987","https://openalex.org/W2891859574","https://openalex.org/W2904531298","https://openalex.org/W2964129362","https://openalex.org/W2974970557","https://openalex.org/W3000407226","https://openalex.org/W3106445841","https://openalex.org/W4238484605","https://openalex.org/W6694821995","https://openalex.org/W6751047983","https://openalex.org/W6754817534"],"related_works":["https://openalex.org/W3175669490","https://openalex.org/W1900977350","https://openalex.org/W2918736073","https://openalex.org/W4249240754","https://openalex.org/W2401329654","https://openalex.org/W2512560369","https://openalex.org/W2318393221","https://openalex.org/W3154327048","https://openalex.org/W4399939794","https://openalex.org/W4235448384"],"abstract_inverted_index":{"Mobile":[0],"edge":[1],"computing":[2],"(MEC)":[3],"offers":[4],"a":[5,144,154],"way":[6],"to":[7,31,43,52,68,84,107,118,148,159],"shorten":[8],"the":[9,15,23,54,58,61,86,95,111,124,161,168],"cloud":[10,17,122],"servicing":[11],"delay":[12,89,133],"by":[13],"building":[14],"small-scale":[16],"infrastructures,":[18],"such":[19],"as":[20],"cloudlets":[21,109,119],"at":[22],"network":[24,112,156],"edge,":[25],"which":[26],"are":[27],"in":[28,90,101,176],"close":[29],"proximity":[30],"end":[32,69],"users.":[33],"On":[34,57],"one":[35],"hand,":[36,60],"it":[37],"is":[38,140],"energy":[39,96,127,179],"consuming":[40],"and":[41,92,113,120,142,181],"costly":[42],"place":[44,108],"each":[45,48,115,131],"cloudlet":[46],"on":[47,110],"access":[49],"point":[50],"(AP)":[51],"process":[53],"requested":[55,116],"tasks.":[56],"other":[59],"service":[62,67],"provider":[63],"should":[64],"provide":[65],"delay-guaranteed":[66],"users,":[70],"otherwise":[71],"they":[72],"may":[73],"get":[74],"revenue":[75],"loss.":[76],"In":[77],"this":[78,138],"paper,":[79],"we":[80,104],"first":[81],"model":[82],"how":[83,106],"calculate":[85],"task":[87,117],"completion":[88],"MEC":[91],"mathematically":[93],"analyze":[94],"consumption":[97,128,180],"of":[98,178],"different":[99],"equipments":[100],"MEC.":[102],"Subsequently,":[103],"study":[105],"allocate":[114],"public":[121],"with":[123,185],"minimum":[125],"total":[126],"without":[129],"violating":[130],"task's":[132],"requirement.":[134],"We":[135,151],"prove":[136],"that":[137,167],"problem":[139],"NP-hard":[141],"propose":[143],"Benders":[145],"decomposition-based":[146],"algorithm":[147,170],"solve":[149],"it.":[150],"also":[152],"present":[153],"software-defined":[155],"(SDN)-based":[157],"framework":[158],"deploy":[160],"proposed":[162,169],"algorithm.":[163],"Extensive":[164],"simulations":[165],"reveal":[166],"can":[171],"achieve":[172],"an":[173],"(close-to-)optimal":[174],"performance":[175],"terms":[177],"acceptance":[182],"ratio":[183],"compared":[184],"two":[186],"benchmark":[187],"heuristics.":[188]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":15},{"year":2024,"cited_by_count":13},{"year":2023,"cited_by_count":17},{"year":2022,"cited_by_count":20},{"year":2021,"cited_by_count":35},{"year":2020,"cited_by_count":25},{"year":2019,"cited_by_count":2}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}