{"id":"https://openalex.org/W2773410170","doi":"https://doi.org/10.1145/3139367.3139384","title":"A hybrid conjugate gradient method based on the self-scaled memoryless BFGS update","display_name":"A hybrid conjugate gradient method based on the self-scaled memoryless BFGS update","publication_year":2017,"publication_date":"2017-09-28","ids":{"openalex":"https://openalex.org/W2773410170","doi":"https://doi.org/10.1145/3139367.3139384","mag":"2773410170"},"language":"en","primary_location":{"id":"doi:10.1145/3139367.3139384","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3139367.3139384","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st Pan-Hellenic Conference on Informatics","raw_type":"proceedings-article"},"type":"conference-paper","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/A5074255083","display_name":"Ioannis E. Livieris","orcid":"https://orcid.org/0000-0002-3996-3301"},"institutions":[{"id":"https://openalex.org/I1319660883","display_name":"Technological Educational Institute of Western Greece","ror":"https://ror.org/01mymm084","country_code":"GR","type":"education","lineage":["https://openalex.org/I1319660883"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Ioannis E. Livieris","raw_affiliation_strings":["Department of Computer Engineering &amp; Informatics Technological Educational, Institute of Western Greece, Antirrio, Greece GR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering &amp; Informatics Technological Educational, Institute of Western Greece, Antirrio, Greece GR","institution_ids":["https://openalex.org/I1319660883"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073119708","display_name":"Stamatis Karlos","orcid":"https://orcid.org/0000-0002-5307-6186"},"institutions":[{"id":"https://openalex.org/I1319660883","display_name":"Technological Educational Institute of Western Greece","ror":"https://ror.org/01mymm084","country_code":"GR","type":"education","lineage":["https://openalex.org/I1319660883"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Stamatis Karlos","raw_affiliation_strings":["Department of Computer Engineering &amp; Informatics Technological Educational, Institute of Western Greece, Antirrio, Greece GR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering &amp; Informatics Technological Educational, Institute of Western Greece, Antirrio, Greece GR","institution_ids":["https://openalex.org/I1319660883"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054224957","display_name":"Vassilis Tampakas","orcid":null},"institutions":[{"id":"https://openalex.org/I1319660883","display_name":"Technological Educational Institute of Western Greece","ror":"https://ror.org/01mymm084","country_code":"GR","type":"education","lineage":["https://openalex.org/I1319660883"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Vassilis Tampakas","raw_affiliation_strings":["Department of Computer Engineering &amp; Informatics Technological Educational, Institute of Western Greece, Antirrio, Greece GR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Engineering &amp; Informatics Technological Educational, Institute of Western Greece, Antirrio, Greece GR","institution_ids":["https://openalex.org/I1319660883"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024258131","display_name":"Panagiotis Pintelas","orcid":"https://orcid.org/0000-0001-8436-2743"},"institutions":[{"id":"https://openalex.org/I174878644","display_name":"University of Patras","ror":"https://ror.org/017wvtq80","country_code":"GR","type":"education","lineage":["https://openalex.org/I174878644"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Panagiotis Pintelas","raw_affiliation_strings":["Department of Mathematics, University of Patras, Patras, Greece GR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, University of Patras, Patras, Greece GR","institution_ids":["https://openalex.org/I174878644"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"2","issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10963","display_name":"Advanced Optimization Algorithms Research","score":0.996399998664856,"subfield":{"id":"https://openalex.org/subfields/2612","display_name":"Numerical Analysis"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9919999837875366,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/broyden\u2013fletcher\u2013goldfarb\u2013shanno-algorithm","display_name":"Broyden\u2013Fletcher\u2013Goldfarb\u2013Shanno algorithm","score":0.8822188377380371},{"id":"https://openalex.org/keywords/conjugate-gradient-method","display_name":"Conjugate gradient method","score":0.8081976175308228},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6020618081092834},{"id":"https://openalex.org/keywords/conjugate","display_name":"Conjugate","score":0.573625922203064},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4521418511867523},{"id":"https://openalex.org/keywords/nonlinear-conjugate-gradient-method","display_name":"Nonlinear conjugate gradient method","score":0.41709524393081665},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.31892311573028564},{"id":"https://openalex.org/keywords/gradient-descent","display_name":"Gradient descent","score":0.25407838821411133},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.25287777185440063},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.16870933771133423},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11132985353469849},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.06388601660728455}],"concepts":[{"id":"https://openalex.org/C132721684","wikidata":"https://www.wikidata.org/wiki/Q2877013","display_name":"Broyden\u2013Fletcher\u2013Goldfarb\u2013Shanno algorithm","level":3,"score":0.8822188377380371},{"id":"https://openalex.org/C81184566","wikidata":"https://www.wikidata.org/wiki/Q1191895","display_name":"Conjugate gradient method","level":2,"score":0.8081976175308228},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6020618081092834},{"id":"https://openalex.org/C197336794","wikidata":"https://www.wikidata.org/wiki/Q5161150","display_name":"Conjugate","level":2,"score":0.573625922203064},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4521418511867523},{"id":"https://openalex.org/C26362088","wikidata":"https://www.wikidata.org/wiki/Q17086453","display_name":"Nonlinear conjugate gradient method","level":4,"score":0.41709524393081665},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.31892311573028564},{"id":"https://openalex.org/C153258448","wikidata":"https://www.wikidata.org/wiki/Q1199743","display_name":"Gradient descent","level":3,"score":0.25407838821411133},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.25287777185440063},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.16870933771133423},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11132985353469849},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.06388601660728455},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.0},{"id":"https://openalex.org/C151319957","wikidata":"https://www.wikidata.org/wiki/Q752739","display_name":"Asynchronous communication","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3139367.3139384","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3139367.3139384","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st Pan-Hellenic Conference on Informatics","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":52,"referenced_works":["https://openalex.org/W40806228","https://openalex.org/W75734479","https://openalex.org/W89654658","https://openalex.org/W150175414","https://openalex.org/W1565013069","https://openalex.org/W1578471822","https://openalex.org/W1864714722","https://openalex.org/W1964845142","https://openalex.org/W1968553199","https://openalex.org/W1974856944","https://openalex.org/W1979347641","https://openalex.org/W1988431651","https://openalex.org/W2004669532","https://openalex.org/W2004750113","https://openalex.org/W2010647796","https://openalex.org/W2012231377","https://openalex.org/W2016518303","https://openalex.org/W2018215034","https://openalex.org/W2031891766","https://openalex.org/W2032668178","https://openalex.org/W2043382734","https://openalex.org/W2051434435","https://openalex.org/W2051669046","https://openalex.org/W2059091092","https://openalex.org/W2061054410","https://openalex.org/W2064851697","https://openalex.org/W2065678922","https://openalex.org/W2066743741","https://openalex.org/W2075313995","https://openalex.org/W2076997099","https://openalex.org/W2081241643","https://openalex.org/W2091549324","https://openalex.org/W2098528027","https://openalex.org/W2108560279","https://openalex.org/W2113611197","https://openalex.org/W2123019231","https://openalex.org/W2130092997","https://openalex.org/W2136780394","https://openalex.org/W2149454052","https://openalex.org/W2158894942","https://openalex.org/W2184458691","https://openalex.org/W2230977749","https://openalex.org/W2316564661","https://openalex.org/W2427294063","https://openalex.org/W2770208085","https://openalex.org/W3005522790","https://openalex.org/W3029645440","https://openalex.org/W3175721619","https://openalex.org/W3193463891","https://openalex.org/W4291439952","https://openalex.org/W4293775970","https://openalex.org/W6603640814"],"related_works":["https://openalex.org/W2906115589","https://openalex.org/W2272058142","https://openalex.org/W2051800432","https://openalex.org/W3210179682","https://openalex.org/W2018215034","https://openalex.org/W2156273800","https://openalex.org/W1503783781","https://openalex.org/W1984722404","https://openalex.org/W2136780394","https://openalex.org/W2078029965"],"abstract_inverted_index":{"In":[0],"this":[1],"work,":[2],"we":[3],"present":[4],"a":[5,31],"new":[6],"conjugate":[7,18,49,74],"gradient":[8,19,50,75],"method":[9,65],"adapting":[10],"the":[11,14,17,37,44,47,53],"approach":[12],"of":[13,16,22,36,79],"hybridization":[15],"update":[20],"parameters":[21],"DY":[23],"and":[24,52,68,81],"HS+":[25],"convexly,":[26],"which":[27],"is":[28,40,66],"based":[29],"on":[30],"quasi-Newton":[32],"philosophy.":[33],"The":[34],"computation":[35],"hybrization":[38],"parameter":[39],"obtained":[41],"by":[42],"minimizing":[43],"distance":[45],"between":[46],"hybrid":[48],"direction":[51],"self-scaling":[54],"memoryless":[55],"BFGS":[56],"direction.":[57],"Our":[58],"numerical":[59],"experiments":[60],"indicate":[61],"that":[62],"our":[63],"proposed":[64],"preferable":[67],"in":[69,77],"general":[70],"superior":[71],"to":[72],"classic":[73],"methods":[76],"terms":[78],"efficiency":[80],"robustness.":[82]},"counts_by_year":[],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}
