{"id":"https://openalex.org/W2773197722","doi":"https://doi.org/10.1109/access.2017.2781464","title":"HybridFTW: Hybrid Computation of Dynamic Time Warping Distances","display_name":"HybridFTW: Hybrid Computation of Dynamic Time Warping Distances","publication_year":2017,"publication_date":"2017-12-08","ids":{"openalex":"https://openalex.org/W2773197722","doi":"https://doi.org/10.1109/access.2017.2781464","mag":"2773197722"},"language":"en","primary_location":{"id":"doi:10.1109/access.2017.2781464","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2017.2781464","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2017.2781464","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100359267","display_name":"Minwoo Lee","orcid":"https://orcid.org/0000-0002-4939-2936"},"institutions":[{"id":"https://openalex.org/I4210147982","display_name":"NHN (South Korea)","ror":"https://ror.org/03x1nzy67","country_code":"KR","type":"company","lineage":["https://openalex.org/I4210147982"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Minwoo Lee","raw_affiliation_strings":["NHN Entertainment, Seongnam, South Korea"],"affiliations":[{"raw_affiliation_string":"NHN Entertainment, Seongnam, South Korea","institution_ids":["https://openalex.org/I4210147982"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100434252","display_name":"Sanghun Lee","orcid":"https://orcid.org/0000-0003-3700-5836"},"institutions":[{"id":"https://openalex.org/I165507594","display_name":"Kangwon National University","ror":"https://ror.org/01mh5ph17","country_code":"KR","type":"education","lineage":["https://openalex.org/I165507594"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Sanghun Lee","raw_affiliation_strings":["Department of Computer Science, Kangwon National University, Chuncheon, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Kangwon National University, Chuncheon, South Korea","institution_ids":["https://openalex.org/I165507594"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056904727","display_name":"Mi-Jung Choi","orcid":"https://orcid.org/0000-0002-9062-4604"},"institutions":[{"id":"https://openalex.org/I165507594","display_name":"Kangwon National University","ror":"https://ror.org/01mh5ph17","country_code":"KR","type":"education","lineage":["https://openalex.org/I165507594"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Mi-Jung Choi","raw_affiliation_strings":["Department of Computer Science, Kangwon National University, Chuncheon, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Kangwon National University, Chuncheon, South Korea","institution_ids":["https://openalex.org/I165507594"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101402186","display_name":"Yang\u2010Sae Moon","orcid":"https://orcid.org/0000-0002-2396-0405"},"institutions":[{"id":"https://openalex.org/I165507594","display_name":"Kangwon National University","ror":"https://ror.org/01mh5ph17","country_code":"KR","type":"education","lineage":["https://openalex.org/I165507594"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Yang-Sae Moon","raw_affiliation_strings":["Department of Computer Science, Kangwon National University, Chuncheon, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Kangwon National University, Chuncheon, South Korea","institution_ids":["https://openalex.org/I165507594"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057617802","display_name":"Hyo-Sang Lim","orcid":"https://orcid.org/0000-0002-4958-193X"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyo-Sang Lim","raw_affiliation_strings":["Computer and Telecommunications Engineering Division, Yonsei University, Wonju, South Korea","ORCiD"],"affiliations":[{"raw_affiliation_string":"Computer and Telecommunications Engineering Division, Yonsei University, Wonju, South Korea","institution_ids":["https://openalex.org/I193775966"]},{"raw_affiliation_string":"ORCiD","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100359267"],"corresponding_institution_ids":["https://openalex.org/I4210147982"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":1.1214,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.8006288,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"6","issue":null,"first_page":"2085","last_page":"2096"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9998999834060669,"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/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9998999834060669,"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/T11106","display_name":"Data Management and Algorithms","score":0.9843000173568726,"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/T11309","display_name":"Music and Audio Processing","score":0.9786999821662903,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/dynamic-time-warping","display_name":"Dynamic time warping","score":0.882075309753418},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7852941155433655},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.7357762455940247},{"id":"https://openalex.org/keywords/correctness","display_name":"Correctness","score":0.722693920135498},{"id":"https://openalex.org/keywords/nearest-neighbor-search","display_name":"Nearest neighbor search","score":0.6332153677940369},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5184592604637146},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.5121843814849854},{"id":"https://openalex.org/keywords/image-warping","display_name":"Image warping","score":0.5017871856689453},{"id":"https://openalex.org/keywords/range","display_name":"Range (aeronautics)","score":0.5017871856689453},{"id":"https://openalex.org/keywords/speedup","display_name":"Speedup","score":0.48589152097702026},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4365953207015991},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.21212154626846313},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.16928622126579285},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.09558889269828796}],"concepts":[{"id":"https://openalex.org/C88516994","wikidata":"https://www.wikidata.org/wiki/Q1268863","display_name":"Dynamic time warping","level":2,"score":0.882075309753418},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7852941155433655},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.7357762455940247},{"id":"https://openalex.org/C55439883","wikidata":"https://www.wikidata.org/wiki/Q360812","display_name":"Correctness","level":2,"score":0.722693920135498},{"id":"https://openalex.org/C116738811","wikidata":"https://www.wikidata.org/wiki/Q608751","display_name":"Nearest neighbor search","level":2,"score":0.6332153677940369},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5184592604637146},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.5121843814849854},{"id":"https://openalex.org/C157202957","wikidata":"https://www.wikidata.org/wiki/Q1659609","display_name":"Image warping","level":2,"score":0.5017871856689453},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.5017871856689453},{"id":"https://openalex.org/C68339613","wikidata":"https://www.wikidata.org/wiki/Q1549489","display_name":"Speedup","level":2,"score":0.48589152097702026},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4365953207015991},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.21212154626846313},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.16928622126579285},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.09558889269828796},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2017.2781464","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2017.2781464","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:7251785d7ab244068bdfbdd5b1da71a9","is_oa":true,"landing_page_url":"https://doaj.org/article/7251785d7ab244068bdfbdd5b1da71a9","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 6, Pp 2085-2096 (2018)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2017.2781464","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2017.2781464","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G7750900786","display_name":null,"funder_award_id":"NRF-2017R1A2B4008991","funder_id":"https://openalex.org/F4320322030","funder_display_name":"Ministry of Science, ICT and Future Planning"}],"funders":[{"id":"https://openalex.org/F4320309036","display_name":"Purdue University","ror":"https://ror.org/02dqehb95"},{"id":"https://openalex.org/F4320321248","display_name":"Kangwon National University","ror":"https://ror.org/01mh5ph17"},{"id":"https://openalex.org/F4320322030","display_name":"Ministry of Science, ICT and Future Planning","ror":"https://ror.org/032e49973"},{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"},{"id":"https://openalex.org/F4320335489","display_name":"Institute for Information and Communications Technology Promotion","ror":"https://ror.org/01g0hqq23"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W71572444","https://openalex.org/W116902681","https://openalex.org/W152645600","https://openalex.org/W1499049447","https://openalex.org/W1967176902","https://openalex.org/W1968010112","https://openalex.org/W1968361347","https://openalex.org/W1974130089","https://openalex.org/W1986471814","https://openalex.org/W2006057946","https://openalex.org/W2010142086","https://openalex.org/W2036557187","https://openalex.org/W2048897436","https://openalex.org/W2050034813","https://openalex.org/W2098089331","https://openalex.org/W2098272719","https://openalex.org/W2107092366","https://openalex.org/W2107103196","https://openalex.org/W2107856142","https://openalex.org/W2109355547","https://openalex.org/W2125120904","https://openalex.org/W2128061541","https://openalex.org/W2128160875","https://openalex.org/W2129308322","https://openalex.org/W2137089646","https://openalex.org/W2144994235","https://openalex.org/W2158597732","https://openalex.org/W2160171843","https://openalex.org/W2533864241","https://openalex.org/W4231088442","https://openalex.org/W6602902517","https://openalex.org/W6604828220","https://openalex.org/W6659467978","https://openalex.org/W6678907263","https://openalex.org/W6679350124"],"related_works":["https://openalex.org/W2347413598","https://openalex.org/W2330863229","https://openalex.org/W71572444","https://openalex.org/W1997383766","https://openalex.org/W2350336482","https://openalex.org/W4206434459","https://openalex.org/W2090890022","https://openalex.org/W2982697608","https://openalex.org/W2052451333","https://openalex.org/W2792071264"],"abstract_inverted_index":{"In":[0,67],"this":[1,68],"paper,":[2,69],"we":[3,70,120,163,182],"propose":[4,71,184],"an":[5],"efficient":[6,56],"approach":[7],"that":[8,93,142,207],"computes":[9],"the":[10,27,39,79,89,98,113,117,127,138,144,150,157,165,171,175,210],"dynamic":[11,108,132,166],"time":[12],"warping":[13],"(DTW)":[14],"distance":[15,22],"in":[16,30,37,126,178],"time-series":[17],"similarity":[18,31],"search.":[19],"The":[20],"DTW":[21,59],"is":[23],"known":[24],"to":[25,43,215,223],"offer":[26],"high":[28,45],"accuracy":[29],"search,":[32],"but":[33,61],"it":[34],"has":[35],"difficulty":[36],"supporting":[38],"large":[40],"database":[41],"due":[42],"its":[44],"computational":[46],"complexity.":[47],"Recently,":[48],"FastDTW":[49,83,92,123,169,219],"and":[50,84,119,124,131,187,191,202,220],"FTW":[51,125,141],"have":[52,63],"been":[53],"proposed":[54],"for":[55],"computation":[57,96,114],"of":[58,81,91,100,129,140,159,168,173],"distances,":[60],"they":[62],"still":[64],"performance":[65,212],"limitations.":[66],"a":[72],"hybrid":[73],"approach,":[74],"called":[75],"HybridFTW,":[76,181],"which":[77,111],"combines":[78],"advantages":[80],"both":[82],"FTW.":[85,179,227],"First,":[86],"HybridFTW":[87,135,208],"takes":[88,137],"advantage":[90,139],"provides":[94],"fast":[95],"through":[97,195],"limitation":[99],"allowable":[101,106],"ranges.":[102],"We":[103],"call":[104],"these":[105],"ranges":[107],"(warping)":[109],"bands,":[110],"reduce":[112],"spaces":[115],"on":[116,200],"fly,":[118],"reanalyze":[121],"previous":[122],"viewpoint":[128],"static":[130],"bands.":[133],"Second,":[134],"also":[136],"exploits":[143],"early":[145],"abandon":[146],"effect":[147],"by":[148,213,221],"using":[149],"segment-based":[151],"tight":[152],"lower":[153,176],"bound.":[154],"To":[155],"maximize":[156],"synergy":[158],"combining":[160],"two":[161],"methods,":[162],"obtain":[164],"band":[167],"during":[170],"process":[172],"computing":[174],"bound":[177],"Using":[180],"next":[183],"range":[185],"search":[186,189,211],"k-NN":[188],"algorithms":[190],"prove":[192],"their":[193],"correctness":[194],"formal":[196],"theorems.":[197],"Experimental":[198],"results":[199],"real":[201],"synthetic":[203],"data":[204],"sets":[205],"show":[206],"improves":[209],"up":[214,222],"38":[216],"times":[217,225],"over":[218,226],"12":[224]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":1}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}