{"id":"https://openalex.org/W2040935219","doi":"https://doi.org/10.1109/coginf.2009.5250725","title":"Identifying Zigzag based Perceptually Important Points for indexing financial time series","display_name":"Identifying Zigzag based Perceptually Important Points for indexing financial time series","publication_year":2009,"publication_date":"2009-06-01","ids":{"openalex":"https://openalex.org/W2040935219","doi":"https://doi.org/10.1109/coginf.2009.5250725","mag":"2040935219"},"language":"en","primary_location":{"id":"doi:10.1109/coginf.2009.5250725","is_oa":false,"landing_page_url":"https://doi.org/10.1109/coginf.2009.5250725","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 8th IEEE International Conference on Cognitive 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/A5005198010","display_name":"Chaliaw Phetking","orcid":null},"institutions":[{"id":"https://openalex.org/I4210097440","display_name":"Suan Dusit University","ror":"https://ror.org/00x7vzk16","country_code":"TH","type":"education","lineage":["https://openalex.org/I4210097440"]}],"countries":["TH"],"is_corresponding":false,"raw_author_name":"Chaliaw Phetking","raw_affiliation_strings":["Faculty of Science and Technology, Rajabhat Suan Dusit Unviersity, Wachira, Dusit, Bangkok, Thailand","Faculty of Science and Technology, Rajabhat Suan Dusit Unviersity, Wachira, Bangkok, 10170, Thailand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Science and Technology, Rajabhat Suan Dusit Unviersity, Wachira, Dusit, Bangkok, Thailand","institution_ids":["https://openalex.org/I4210097440"]},{"raw_affiliation_string":"Faculty of Science and Technology, Rajabhat Suan Dusit Unviersity, Wachira, Bangkok, 10170, Thailand","institution_ids":["https://openalex.org/I4210097440"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019686683","display_name":"Mohd. Noor Md. Sap","orcid":null},"institutions":[{"id":"https://openalex.org/I4576418","display_name":"University of Technology Malaysia","ror":"https://ror.org/026w31v75","country_code":"MY","type":"education","lineage":["https://openalex.org/I4576418"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"Mohd Noor Md. Sap","raw_affiliation_strings":["Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia","Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, 81310, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia","institution_ids":["https://openalex.org/I4576418"]},{"raw_affiliation_string":"Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, 81310, Malaysia","institution_ids":["https://openalex.org/I4576418"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5089742876","display_name":"Ali Selamat","orcid":"https://orcid.org/0000-0001-9746-8459"},"institutions":[{"id":"https://openalex.org/I4576418","display_name":"University of Technology Malaysia","ror":"https://ror.org/026w31v75","country_code":"MY","type":"education","lineage":["https://openalex.org/I4576418"]}],"countries":["MY"],"is_corresponding":false,"raw_author_name":"Ali Selamat","raw_affiliation_strings":["Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia","Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, 81310, Malaysia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia","institution_ids":["https://openalex.org/I4576418"]},{"raw_affiliation_string":"Faculty of Computer Science and Information System, Universiti Teknologi Malaysia, Skudai, Johor, 81310, Malaysia","institution_ids":["https://openalex.org/I4576418"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"295","last_page":"301"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9998000264167786,"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":0.9998000264167786,"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/T11270","display_name":"Complex Systems and Time Series Analysis","score":0.9865999817848206,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11309","display_name":"Music and Audio Processing","score":0.9700000286102295,"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/zigzag","display_name":"Zigzag","score":0.8296144604682922},{"id":"https://openalex.org/keywords/series","display_name":"Series (stratigraphy)","score":0.6635512113571167},{"id":"https://openalex.org/keywords/dimensionality-reduction","display_name":"Dimensionality reduction","score":0.5825455188751221},{"id":"https://openalex.org/keywords/search-engine-indexing","display_name":"Search engine indexing","score":0.5651260018348694},{"id":"https://openalex.org/keywords/bounding-overwatch","display_name":"Bounding overwatch","score":0.5593408346176147},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5442410707473755},{"id":"https://openalex.org/keywords/curse-of-dimensionality","display_name":"Curse of dimensionality","score":0.4935246706008911},{"id":"https://openalex.org/keywords/time-series","display_name":"Time series","score":0.49291491508483887},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.43584948778152466},{"id":"https://openalex.org/keywords/finance","display_name":"Finance","score":0.39948034286499023},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.393390953540802},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.33096134662628174},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3251011073589325},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.14662379026412964},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.08377757668495178}],"concepts":[{"id":"https://openalex.org/C192271897","wikidata":"https://www.wikidata.org/wiki/Q198438","display_name":"Zigzag","level":2,"score":0.8296144604682922},{"id":"https://openalex.org/C143724316","wikidata":"https://www.wikidata.org/wiki/Q312468","display_name":"Series (stratigraphy)","level":2,"score":0.6635512113571167},{"id":"https://openalex.org/C70518039","wikidata":"https://www.wikidata.org/wiki/Q16000077","display_name":"Dimensionality reduction","level":2,"score":0.5825455188751221},{"id":"https://openalex.org/C75165309","wikidata":"https://www.wikidata.org/wiki/Q2258979","display_name":"Search engine indexing","level":2,"score":0.5651260018348694},{"id":"https://openalex.org/C63584917","wikidata":"https://www.wikidata.org/wiki/Q333286","display_name":"Bounding overwatch","level":2,"score":0.5593408346176147},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5442410707473755},{"id":"https://openalex.org/C111030470","wikidata":"https://www.wikidata.org/wiki/Q1430460","display_name":"Curse of dimensionality","level":2,"score":0.4935246706008911},{"id":"https://openalex.org/C151406439","wikidata":"https://www.wikidata.org/wiki/Q186588","display_name":"Time series","level":2,"score":0.49291491508483887},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.43584948778152466},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.39948034286499023},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.393390953540802},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.33096134662628174},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3251011073589325},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.14662379026412964},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.08377757668495178},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","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/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/coginf.2009.5250725","is_oa":false,"landing_page_url":"https://doi.org/10.1109/coginf.2009.5250725","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 8th IEEE International Conference on Cognitive 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":27,"referenced_works":["https://openalex.org/W94962235","https://openalex.org/W1482321076","https://openalex.org/W1499049447","https://openalex.org/W1608764981","https://openalex.org/W2002328435","https://openalex.org/W2029912643","https://openalex.org/W2036557187","https://openalex.org/W2040148652","https://openalex.org/W2042591571","https://openalex.org/W2066796814","https://openalex.org/W2086086639","https://openalex.org/W2095484357","https://openalex.org/W2098272719","https://openalex.org/W2135346934","https://openalex.org/W2138087993","https://openalex.org/W2148039410","https://openalex.org/W2154892776","https://openalex.org/W2163336863","https://openalex.org/W2167833054","https://openalex.org/W2612231277","https://openalex.org/W4256295326","https://openalex.org/W6603861393","https://openalex.org/W6628611314","https://openalex.org/W6636302997","https://openalex.org/W6661122342","https://openalex.org/W6671656860","https://openalex.org/W6737363664"],"related_works":["https://openalex.org/W1995622179","https://openalex.org/W2000515299","https://openalex.org/W1484111231","https://openalex.org/W1552543208","https://openalex.org/W2074396517","https://openalex.org/W2166963679","https://openalex.org/W2187269125","https://openalex.org/W1641615907","https://openalex.org/W3089231081","https://openalex.org/W2093956241"],"abstract_inverted_index":{"Financial":[0],"time":[1,15,44,71,82,139],"series":[2,16,45,72,83,140],"often":[3],"exhibit":[4],"high":[5],"degrees":[6],"of":[7,42,61,80,86],"fluctuation":[8],"which":[9,84],"are":[10,31],"considered":[11],"as":[12],"noise":[13],"in":[14,68,93,97,138],"analysis.":[17],"To":[18],"remove":[19,55],"noise,":[20],"several":[21,87],"lower":[22],"bounding":[23],"the":[24,40,51,65,69,78,98,106,146],"Euclidean":[25],"distance":[26],"based":[27,108,125],"dimensionality":[28,141],"reduction":[29],"methods":[30,36,62,137],"applied.":[32],"But,":[33],"however,":[34,75],"these":[35,131],"do":[37],"not":[38],"meet":[39],"constraint":[41],"financial":[43,70,81],"analysis":[46],"that":[47],"wants":[48],"to":[49,114,129,150],"retain":[50,64],"important":[52,66,119,132],"points":[53,67],"and":[54,90,96],"others.":[56],"Therefore,":[57],"although":[58],"a":[59],"number":[60],"can":[63],"reduction,":[73],"but,":[74],"they":[76],"loss":[77],"nature":[79],"consist":[85],"uptrends,":[88],"downtrends":[89],"sideway":[91],"trends":[92],"different":[94],"resolutions":[95],"zigzag":[99,117],"directions.":[100],"In":[101],"this":[102],"paper,":[103],"we":[104,122],"propose":[105,123],"Zigzag":[107,124],"Perceptually":[109],"Important":[110],"Point":[111],"Identification":[112],"method":[113],"collect":[115],"those":[116],"movement":[118],"points.":[120,133],"Further,":[121],"Multiway":[126],"Search":[127],"Tree":[128],"index":[130],"We":[134],"evaluate":[135],"our":[136],"reduction.":[142],"The":[143],"results":[144],"show":[145],"significant":[147],"performance":[148],"comparing":[149],"other":[151],"original":[152],"method.":[153]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}