{"id":"https://openalex.org/W2256642748","doi":"https://doi.org/10.3390/e18020044","title":"Feature Selection of Power Quality Disturbance Signals with an Entropy-Importance-Based Random Forest","display_name":"Feature Selection of Power Quality Disturbance Signals with an Entropy-Importance-Based Random Forest","publication_year":2016,"publication_date":"2016-01-28","ids":{"openalex":"https://openalex.org/W2256642748","doi":"https://doi.org/10.3390/e18020044","mag":"2256642748"},"language":"en","primary_location":{"id":"doi:10.3390/e18020044","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e18020044","pdf_url":"https://www.mdpi.com/1099-4300/18/2/44/pdf?version=1453976337","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1099-4300/18/2/44/pdf?version=1453976337","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102775260","display_name":"Nantian Huang","orcid":null},"institutions":[{"id":"https://openalex.org/I179060312","display_name":"Northeast Electric Power University","ror":"https://ror.org/00zqaxa34","country_code":"CN","type":"education","lineage":["https://openalex.org/I179060312"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Nantian Huang","raw_affiliation_strings":["School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China","institution_ids":["https://openalex.org/I179060312"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088422806","display_name":"Guobo Lu","orcid":"https://orcid.org/0000-0003-1968-0504"},"institutions":[{"id":"https://openalex.org/I179060312","display_name":"Northeast Electric Power University","ror":"https://ror.org/00zqaxa34","country_code":"CN","type":"education","lineage":["https://openalex.org/I179060312"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guobo Lu","raw_affiliation_strings":["School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China"],"raw_orcid":"https://orcid.org/0000-0003-1968-0504","affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China","institution_ids":["https://openalex.org/I179060312"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101579301","display_name":"Guowei Cai","orcid":"https://orcid.org/0000-0002-4808-1802"},"institutions":[{"id":"https://openalex.org/I179060312","display_name":"Northeast Electric Power University","ror":"https://ror.org/00zqaxa34","country_code":"CN","type":"education","lineage":["https://openalex.org/I179060312"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guowei Cai","raw_affiliation_strings":["School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China","institution_ids":["https://openalex.org/I179060312"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100341927","display_name":"Dianguo Xu","orcid":"https://orcid.org/0000-0002-1594-8625"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dianguo Xu","raw_affiliation_strings":["Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036541414","display_name":"Jiafeng Xu","orcid":"https://orcid.org/0000-0001-8075-8556"},"institutions":[{"id":"https://openalex.org/I74872605","display_name":"China Southern Power Grid (China)","ror":"https://ror.org/03hkh9419","country_code":"CN","type":"company","lineage":["https://openalex.org/I74872605"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiafeng Xu","raw_affiliation_strings":["Dongguan Power Supply Bureau, Guangdong Power Grid Corporation, Dongguan 523000, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dongguan Power Supply Bureau, Guangdong Power Grid Corporation, Dongguan 523000, China","institution_ids":["https://openalex.org/I74872605"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078991273","display_name":"Fuqing Li","orcid":null},"institutions":[{"id":"https://openalex.org/I179060312","display_name":"Northeast Electric Power University","ror":"https://ror.org/00zqaxa34","country_code":"CN","type":"education","lineage":["https://openalex.org/I179060312"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fuqing Li","raw_affiliation_strings":["School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China","institution_ids":["https://openalex.org/I179060312"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5034564959","display_name":"Liying Zhang","orcid":"https://orcid.org/0000-0003-3917-0667"},"institutions":[{"id":"https://openalex.org/I179060312","display_name":"Northeast Electric Power University","ror":"https://ror.org/00zqaxa34","country_code":"CN","type":"education","lineage":["https://openalex.org/I179060312"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Liying Zhang","raw_affiliation_strings":["School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Northeast Dianli University, Jilin 132012, China","institution_ids":["https://openalex.org/I179060312"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5102775260"],"corresponding_institution_ids":["https://openalex.org/I179060312"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165},"fwci":1.6738,"has_fulltext":true,"cited_by_count":45,"citation_normalized_percentile":{"value":0.85018195,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"18","issue":"2","first_page":"44","last_page":"44"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10573","display_name":"Power Quality and Harmonics","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T10573","display_name":"Power Quality and Harmonics","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T10220","display_name":"Machine Fault Diagnosis Techniques","score":0.9740999937057495,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T13955","display_name":"Evaluation Methods in Various Fields","score":0.9684000015258789,"subfield":{"id":"https://openalex.org/subfields/2302","display_name":"Ecological Modeling"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/random-forest","display_name":"Random forest","score":0.8729127645492554},{"id":"https://openalex.org/keywords/feature-selection","display_name":"Feature selection","score":0.7718510627746582},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.7196484208106995},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.627991795539856},{"id":"https://openalex.org/keywords/entropy","display_name":"Entropy (arrow of time)","score":0.6261565089225769},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.5993008017539978},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5542937517166138},{"id":"https://openalex.org/keywords/classifier","display_name":"Classifier (UML)","score":0.5369685888290405},{"id":"https://openalex.org/keywords/feature-vector","display_name":"Feature vector","score":0.4859072268009186},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.4455554485321045},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3300427794456482}],"concepts":[{"id":"https://openalex.org/C169258074","wikidata":"https://www.wikidata.org/wiki/Q245748","display_name":"Random forest","level":2,"score":0.8729127645492554},{"id":"https://openalex.org/C148483581","wikidata":"https://www.wikidata.org/wiki/Q446488","display_name":"Feature selection","level":2,"score":0.7718510627746582},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.7196484208106995},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.627991795539856},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.6261565089225769},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.5993008017539978},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5542937517166138},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.5369685888290405},{"id":"https://openalex.org/C83665646","wikidata":"https://www.wikidata.org/wiki/Q42139305","display_name":"Feature vector","level":2,"score":0.4859072268009186},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.4455554485321045},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3300427794456482},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3390/e18020044","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e18020044","pdf_url":"https://www.mdpi.com/1099-4300/18/2/44/pdf?version=1453976337","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:9a57fd93eedd4105a22ae40ae32cb109","is_oa":true,"landing_page_url":"https://doaj.org/article/9a57fd93eedd4105a22ae40ae32cb109","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy, Vol 18, Iss 2, p 44 (2016)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/e18020044","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e18020044","pdf_url":"https://www.mdpi.com/1099-4300/18/2/44/pdf?version=1453976337","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.5899999737739563,"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15"}],"awards":[{"id":"https://openalex.org/G2394654789","display_name":null,"funder_award_id":"51577023","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7785978990","display_name":null,"funder_award_id":"51307020","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2256642748.pdf","grobid_xml":"https://content.openalex.org/works/W2256642748.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W753187444","https://openalex.org/W759582212","https://openalex.org/W1536988052","https://openalex.org/W1885539543","https://openalex.org/W1965449238","https://openalex.org/W1971047516","https://openalex.org/W1975897840","https://openalex.org/W1978718488","https://openalex.org/W1987504723","https://openalex.org/W1990613445","https://openalex.org/W1993029589","https://openalex.org/W1999508011","https://openalex.org/W2011223236","https://openalex.org/W2012368759","https://openalex.org/W2017867711","https://openalex.org/W2027790217","https://openalex.org/W2030047571","https://openalex.org/W2031912930","https://openalex.org/W2032378334","https://openalex.org/W2036750167","https://openalex.org/W2041383636","https://openalex.org/W2044401459","https://openalex.org/W2057163688","https://openalex.org/W2062463467","https://openalex.org/W2062936627","https://openalex.org/W2070193664","https://openalex.org/W2072026441","https://openalex.org/W2074116334","https://openalex.org/W2074644226","https://openalex.org/W2079345588","https://openalex.org/W2080045616","https://openalex.org/W2087402435","https://openalex.org/W2106525823","https://openalex.org/W2120063205","https://openalex.org/W2158642626","https://openalex.org/W2174926952","https://openalex.org/W2312203001","https://openalex.org/W2911964244","https://openalex.org/W2998768810"],"related_works":["https://openalex.org/W3193043704","https://openalex.org/W4388745254","https://openalex.org/W2889302474","https://openalex.org/W2980082554","https://openalex.org/W1517228774","https://openalex.org/W2767419625","https://openalex.org/W2389704471","https://openalex.org/W2117019857","https://openalex.org/W1980222719","https://openalex.org/W4308273529"],"abstract_inverted_index":{"Power":[0],"quality":[1,17],"signal":[2,44],"feature":[3,33,59,103,121,150,171],"selection":[4,34,151],"is":[5,38,88,105,128,141,157,197],"an":[6,24],"effective":[7],"method":[8,114,175],"to":[9,64,130,134],"improve":[10],"the":[11,56,78,82,95,100,109,117,124,135,138,149,154,169,173,184,192],"accuracy":[12,119,140,180,193],"and":[13,35,120,148,161,191],"efficiency":[14],"of":[15,43,61,68,74,85,145,153,186],"power":[16],"(PQ)":[18],"disturbance":[19,36],"classification.":[20],"In":[21],"this":[22],"paper,":[23],"entropy-importance":[25],"(EnI)-based":[26],"random":[27,51],"forest":[28],"(RF)":[29],"model":[30],"for":[31],"PQ":[32,69],"classification":[37,83,118,139,179],"proposed.":[39],"Firstly,":[40],"35":[41],"kinds":[42,67,73],"features":[45,87,96],"extracted":[46],"from":[47],"S-transform":[48],"(ST)":[49],"with":[50,71,97],"noise":[52],"are":[53],"used":[54],"as":[55],"original":[57],"input":[58],"vector":[60],"RF":[62,79,126],"classifier":[63,127],"recognize":[65],"15":[66],"signals":[70],"six":[72],"complex":[75],"disturbance.":[76],"During":[77],"training":[80],"process,":[81],"ability":[84],"different":[86],"quantified":[89],"by":[90,107],"EnI.":[91,167],"Secondly,":[92],"without":[93,166],"considering":[94],"zero":[98],"EnI,":[99],"optimal":[101],"perturbation":[102],"subset":[104],"obtained":[106],"applying":[108],"sequential":[110,162],"forward":[111],"search":[112,164],"(SFS)":[113],"which":[115],"considers":[116],"dimension.":[122],"Then,":[123],"reconstructed":[125],"applied":[129],"identify":[131],"disturbances.":[132],"According":[133],"simulation":[136],"results,":[137],"higher":[142],"than":[143,159],"that":[144],"other":[146],"classifiers,":[147],"effect":[152],"new":[155,174],"approach":[156],"better":[158],"SFS":[160],"backward":[163],"(SBS)":[165],"With":[168],"same":[170],"subset,":[172],"can":[176],"maintain":[177],"a":[178],"above":[181],"99.7%":[182],"under":[183,194],"condition":[185],"30":[187],"dB":[188,196],"or":[189],"above,":[190],"20":[195],"96.8%.":[198]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":9},{"year":2022,"cited_by_count":9},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2016-06-24T00:00:00"}