{"id":"https://openalex.org/W4210869846","doi":"https://doi.org/10.1109/wsc.2012.6465039","title":"Optimization via gradient oriented polar random search","display_name":"Optimization via gradient oriented polar random search","publication_year":2012,"publication_date":"2012-12-01","ids":{"openalex":"https://openalex.org/W4210869846","doi":"https://doi.org/10.1109/wsc.2012.6465039"},"language":"en","primary_location":{"id":"doi:10.1109/wsc.2012.6465039","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wsc.2012.6465039","pdf_url":null,"source":{"id":"https://openalex.org/S4363608782","display_name":"Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC)","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/A5026816911","display_name":"Haobin Li","orcid":"https://orcid.org/0000-0001-5537-2395"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Haobin Li","raw_affiliation_strings":["Department of Industrial and Systems Engineering, National University of Singapore, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Industrial and Systems Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007751109","display_name":"Loo Hay Lee","orcid":"https://orcid.org/0000-0001-9359-0027"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Loo Hay Lee","raw_affiliation_strings":["Department of Industrial and Systems Engineering, National University of Singapore, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Industrial and Systems Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5077706028","display_name":"Ek Peng Chew","orcid":"https://orcid.org/0000-0001-6461-1634"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Ek Peng Chew","raw_affiliation_strings":["Department of Industrial and Systems Engineering, National University of Singapore, Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Industrial and Systems Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5026816911"],"corresponding_institution_ids":["https://openalex.org/I165932596"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.72058824,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"26","issue":null,"first_page":"1","last_page":"12"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10848","display_name":"Advanced Multi-Objective Optimization Algorithms","score":0.9950000047683716,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T12814","display_name":"Gaussian Processes and Bayesian Inference","score":0.9933000206947327,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/random-search","display_name":"Random search","score":0.7831727266311646},{"id":"https://openalex.org/keywords/randomness","display_name":"Randomness","score":0.7590941190719604},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.567068874835968},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5484843254089355},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5337895750999451},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.53041011095047},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.5122119784355164},{"id":"https://openalex.org/keywords/local-search","display_name":"Local search (optimization)","score":0.49939393997192383},{"id":"https://openalex.org/keywords/random-optimization","display_name":"Random optimization","score":0.4785231351852417},{"id":"https://openalex.org/keywords/sampling","display_name":"Sampling (signal processing)","score":0.4683501124382019},{"id":"https://openalex.org/keywords/dimension","display_name":"Dimension (graph theory)","score":0.4443179965019226},{"id":"https://openalex.org/keywords/line-search","display_name":"Line search","score":0.4363940358161926},{"id":"https://openalex.org/keywords/polar","display_name":"Polar","score":0.4166432023048401},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4091133773326874},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.37109389901161194},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.33346718549728394},{"id":"https://openalex.org/keywords/path","display_name":"Path (computing)","score":0.23984473943710327},{"id":"https://openalex.org/keywords/continuous-optimization","display_name":"Continuous optimization","score":0.16695985198020935},{"id":"https://openalex.org/keywords/multi-swarm-optimization","display_name":"Multi-swarm optimization","score":0.09941694140434265}],"concepts":[{"id":"https://openalex.org/C126661757","wikidata":"https://www.wikidata.org/wiki/Q4925641","display_name":"Random search","level":2,"score":0.7831727266311646},{"id":"https://openalex.org/C125112378","wikidata":"https://www.wikidata.org/wiki/Q176640","display_name":"Randomness","level":2,"score":0.7590941190719604},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.567068874835968},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5484843254089355},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5337895750999451},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.53041011095047},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.5122119784355164},{"id":"https://openalex.org/C135320971","wikidata":"https://www.wikidata.org/wiki/Q1868524","display_name":"Local search (optimization)","level":2,"score":0.49939393997192383},{"id":"https://openalex.org/C109578324","wikidata":"https://www.wikidata.org/wiki/Q3354463","display_name":"Random optimization","level":5,"score":0.4785231351852417},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.4683501124382019},{"id":"https://openalex.org/C33676613","wikidata":"https://www.wikidata.org/wiki/Q13415176","display_name":"Dimension (graph theory)","level":2,"score":0.4443179965019226},{"id":"https://openalex.org/C85522705","wikidata":"https://www.wikidata.org/wiki/Q3278015","display_name":"Line search","level":3,"score":0.4363940358161926},{"id":"https://openalex.org/C29705727","wikidata":"https://www.wikidata.org/wiki/Q294562","display_name":"Polar","level":2,"score":0.4166432023048401},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4091133773326874},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.37109389901161194},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.33346718549728394},{"id":"https://openalex.org/C2777735758","wikidata":"https://www.wikidata.org/wiki/Q817765","display_name":"Path (computing)","level":2,"score":0.23984473943710327},{"id":"https://openalex.org/C92995354","wikidata":"https://www.wikidata.org/wiki/Q5165499","display_name":"Continuous optimization","level":4,"score":0.16695985198020935},{"id":"https://openalex.org/C122357587","wikidata":"https://www.wikidata.org/wiki/Q6934508","display_name":"Multi-swarm optimization","level":3,"score":0.09941694140434265},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","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/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"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/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"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/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/wsc.2012.6465039","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wsc.2012.6465039","pdf_url":null,"source":{"id":"https://openalex.org/S4363608782","display_name":"Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings Title: Proceedings of the 2012 Winter Simulation Conference (WSC)","raw_type":"proceedings-article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/72367","is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/72367","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":[],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Conference Paper"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/87366","is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/87366","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":[],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Conference Paper"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.416.800","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.416.800","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.informs-sim.org/wsc12papers/includes/files/con263.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.4399999976158142}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W32980360","https://openalex.org/W203276351","https://openalex.org/W1498711961","https://openalex.org/W1979761486","https://openalex.org/W1995714897","https://openalex.org/W2009797711","https://openalex.org/W2024060531","https://openalex.org/W2026258334","https://openalex.org/W2047663898","https://openalex.org/W2051579020","https://openalex.org/W2056603712","https://openalex.org/W2085145661","https://openalex.org/W2116940697","https://openalex.org/W2141771453","https://openalex.org/W2144037248","https://openalex.org/W2166827312","https://openalex.org/W2496946368","https://openalex.org/W2734870733","https://openalex.org/W2943205955","https://openalex.org/W6741320478"],"related_works":["https://openalex.org/W2374320618","https://openalex.org/W1986294906","https://openalex.org/W2166702801","https://openalex.org/W2099588178","https://openalex.org/W2067173785","https://openalex.org/W2090142081","https://openalex.org/W2091683542","https://openalex.org/W4381137500","https://openalex.org/W2001586044","https://openalex.org/W2375625581"],"abstract_inverted_index":{"Search":[0,135],"algorithms":[1,23],"are":[2,24],"often":[3],"used":[4],"for":[5,145],"optimization":[6],"problems":[7],"where":[8,118],"its":[9],"mathematical":[10],"formulation":[11],"is":[12,76,86,137],"difficult":[13],"to":[14,78,88,114,141],"be":[15,46,69,122],"analyzed,":[16],"e.g.,":[17],"simulation":[18],"optimization.":[19],"In":[20],"literature,":[21],"search":[22,44],"either":[25],"driven":[26],"by":[27,58],"gradient":[28,43,65],"or":[29],"based":[30,125],"on":[31,126],"random":[32,54],"sampling":[33,55],"within":[34],"specified":[35],"neighborhood,":[36],"but":[37],"both":[38,80],"methods":[39],"have":[40],"limitation":[41],"as":[42,64],"can":[45,121],"easily":[47],"trapped":[48],"at":[49],"a":[50,94,98,106,128],"local":[51,61,147],"optimum":[52],"and":[53,90,139],"loses":[56],"efficiency":[57],"not":[59],"utilizing":[60],"information":[62],"such":[63],"direction":[66,95],"that":[67],"might":[68],"available.":[70],"A":[71],"combination":[72],"of":[73,97,105],"the":[74,83,119,143],"two":[75],"believed":[77],"overcome":[79],"disadvantages.":[81],"However,":[82],"main":[84],"difficulty":[85],"how":[87],"incorporate":[89],"control":[91],"randomness":[92],"in":[93,110],"instead":[96],"point.":[99],"Thus,":[100],"this":[101],"paper":[102],"makes":[103],"use":[104],"polar":[107],"coordinate":[108],"representation":[109],"any":[111],"high":[112],"dimension":[113],"randomly":[115],"generate":[116],"directions":[117],"concentration":[120],"explicitly":[123],"controlled,":[124],"which":[127],"brand":[129],"new":[130],"Gradient":[131],"Oriented":[132],"Polar":[133],"Random":[134],"(GO-POLARS)":[136],"designed":[138],"proved":[140],"satisfy":[142],"conditions":[144],"strong":[146],"convergence.":[148]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2017,"cited_by_count":1}],"updated_date":"2026-04-02T15:55:50.835912","created_date":"2025-10-10T00:00:00"}