{"id":"https://openalex.org/W4396982256","doi":"https://doi.org/10.1109/tr.2024.3397394","title":"Learning Informative Health Indicators Through Unsupervised Contrastive Learning","display_name":"Learning Informative Health Indicators Through Unsupervised Contrastive Learning","publication_year":2024,"publication_date":"2024-05-16","ids":{"openalex":"https://openalex.org/W4396982256","doi":"https://doi.org/10.1109/tr.2024.3397394"},"language":"en","primary_location":{"id":"doi:10.1109/tr.2024.3397394","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tr.2024.3397394","pdf_url":null,"source":{"id":"https://openalex.org/S87725633","display_name":"IEEE Transactions on Reliability","issn_l":"0018-9529","issn":["0018-9529","1558-1721"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Reliability","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://infoscience.epfl.ch/handle/20.500.14299/208614","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5070889233","display_name":"Katharina Rombach","orcid":"https://orcid.org/0000-0002-5399-8404"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":true,"raw_author_name":"Katharina Rombach","raw_affiliation_strings":["Chair of Intelligent Maintenance Systems, ETH Zurich, Z&#x00FC;rich, Switzerland"],"affiliations":[{"raw_affiliation_string":"Chair of Intelligent Maintenance Systems, ETH Zurich, Z&#x00FC;rich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060018856","display_name":"Gabriel Michau","orcid":"https://orcid.org/0000-0001-6882-2906"},"institutions":[{"id":"https://openalex.org/I4210167399","display_name":"Kantonsspital Frauenfeld","ror":"https://ror.org/05yabwx33","country_code":"CH","type":"healthcare","lineage":["https://openalex.org/I4210151503","https://openalex.org/I4210167399"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Gabriel Michau","raw_affiliation_strings":["Maintenance Systems &amp; Technologies Group, Stadler Service AG, Frauenfeld, Switzerland"],"affiliations":[{"raw_affiliation_string":"Maintenance Systems &amp; Technologies Group, Stadler Service AG, Frauenfeld, Switzerland","institution_ids":["https://openalex.org/I4210167399"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027667640","display_name":"Wilfried B\u00fcrzle","orcid":null},"institutions":[{"id":"https://openalex.org/I4210153535","display_name":"Swiss Federal Railways","ror":"https://ror.org/052z4cr88","country_code":"CH","type":"government","lineage":["https://openalex.org/I4210153535"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Wilfried B\u00fcrzle","raw_affiliation_strings":["Vehicle and System Engineering Group, Swiss Federal Railways, Bern, Switzerland"],"affiliations":[{"raw_affiliation_string":"Vehicle and System Engineering Group, Swiss Federal Railways, Bern, Switzerland","institution_ids":["https://openalex.org/I4210153535"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112423962","display_name":"Stefan Koller","orcid":null},"institutions":[{"id":"https://openalex.org/I4210153535","display_name":"Swiss Federal Railways","ror":"https://ror.org/052z4cr88","country_code":"CH","type":"government","lineage":["https://openalex.org/I4210153535"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Stefan Koller","raw_affiliation_strings":["Wayside Train Monitoring Systems Department Group, Swiss Federal Railways, Bern, Switzerland"],"affiliations":[{"raw_affiliation_string":"Wayside Train Monitoring Systems Department Group, Swiss Federal Railways, Bern, Switzerland","institution_ids":["https://openalex.org/I4210153535"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079637160","display_name":"Olga Fink","orcid":"https://orcid.org/0000-0002-9546-1488"},"institutions":[{"id":"https://openalex.org/I5124864","display_name":"\u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne","ror":"https://ror.org/02s376052","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I5124864"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Olga Fink","raw_affiliation_strings":["Intelligent Maintenance and Operations Systems, EPFL, Lausanne, Switzerland"],"affiliations":[{"raw_affiliation_string":"Intelligent Maintenance and Operations Systems, EPFL, Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5070889233"],"corresponding_institution_ids":["https://openalex.org/I35440088"],"apc_list":null,"apc_paid":null,"fwci":7.1166,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.96805522,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"74","issue":"1","first_page":"2408","last_page":"2420"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11396","display_name":"Artificial Intelligence in Healthcare","score":0.6503999829292297,"subfield":{"id":"https://openalex.org/subfields/3605","display_name":"Health Information Management"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11396","display_name":"Artificial Intelligence in Healthcare","score":0.6503999829292297,"subfield":{"id":"https://openalex.org/subfields/3605","display_name":"Health Information Management"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6421294212341309},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5960488319396973},{"id":"https://openalex.org/keywords/unsupervised-learning","display_name":"Unsupervised learning","score":0.5649691820144653},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.5162301063537598},{"id":"https://openalex.org/keywords/statistical-learning","display_name":"Statistical learning","score":0.47163888812065125},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.4017288386821747}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6421294212341309},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5960488319396973},{"id":"https://openalex.org/C8038995","wikidata":"https://www.wikidata.org/wiki/Q1152135","display_name":"Unsupervised learning","level":2,"score":0.5649691820144653},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.5162301063537598},{"id":"https://openalex.org/C2982736386","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Statistical learning","level":2,"score":0.47163888812065125},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.4017288386821747}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tr.2024.3397394","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tr.2024.3397394","pdf_url":null,"source":{"id":"https://openalex.org/S87725633","display_name":"IEEE Transactions on Reliability","issn_l":"0018-9529","issn":["0018-9529","1558-1721"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Reliability","raw_type":"journal-article"},{"id":"pmh:oai:infoscience.epfl.ch:311612","is_oa":true,"landing_page_url":"https://infoscience.epfl.ch/handle/20.500.14299/208614","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"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-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"WoS","raw_type":"research article"}],"best_oa_location":{"id":"pmh:oai:infoscience.epfl.ch:311612","is_oa":true,"landing_page_url":"https://infoscience.epfl.ch/handle/20.500.14299/208614","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"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-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"WoS","raw_type":"research article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":39,"referenced_works":["https://openalex.org/W2096733369","https://openalex.org/W2137144167","https://openalex.org/W2157364932","https://openalex.org/W2346053568","https://openalex.org/W2575828067","https://openalex.org/W2735432884","https://openalex.org/W2735823605","https://openalex.org/W2744245146","https://openalex.org/W2768148617","https://openalex.org/W2773549135","https://openalex.org/W2792018332","https://openalex.org/W2800395558","https://openalex.org/W2897250207","https://openalex.org/W2969828024","https://openalex.org/W2973001054","https://openalex.org/W2998335799","https://openalex.org/W3020467718","https://openalex.org/W3022112205","https://openalex.org/W3109541357","https://openalex.org/W3133798627","https://openalex.org/W3141188857","https://openalex.org/W3158868365","https://openalex.org/W3163644336","https://openalex.org/W3175938759","https://openalex.org/W4206648819","https://openalex.org/W4225503344","https://openalex.org/W4226172863","https://openalex.org/W4229063675","https://openalex.org/W4280581965","https://openalex.org/W4283577545","https://openalex.org/W4308422219","https://openalex.org/W4312068053","https://openalex.org/W4320480791","https://openalex.org/W4377263851","https://openalex.org/W4388522609","https://openalex.org/W4400721792","https://openalex.org/W6725733176","https://openalex.org/W6759891849","https://openalex.org/W6792485778"],"related_works":["https://openalex.org/W2961085424","https://openalex.org/W4306674287","https://openalex.org/W3046775127","https://openalex.org/W3107602296","https://openalex.org/W4394896187","https://openalex.org/W3170094116","https://openalex.org/W4386462264","https://openalex.org/W4364306694","https://openalex.org/W4312192474","https://openalex.org/W4283697347"],"abstract_inverted_index":{"Monitoring":[0],"the":[1,22,57,72,100,110,139,142],"health":[2,23,51,106,148],"of":[3,25,87,93,112,141],"complex":[4],"industrial":[5,26],"assets":[6,27],"is":[7,74,120],"crucial":[8],"for":[9,66,122,144],"safe":[10],"and":[11,46,79,90,119,147],"efficient":[12],"operations.":[13],"Health":[14],"indicators":[15,52],"that":[16,99,108],"provide":[17],"quantitative":[18],"real-time":[19],"insights":[20],"into":[21],"status":[24],"over":[28],"time":[29],"serve":[30],"as":[31,63],"valuable":[32],"tools":[33],"for,":[34],"e.g.,":[35],"fault":[36,91,123],"detection":[37,92,124],"or":[38],"prognostics.":[39],"This":[40],"article":[41],"proposes":[42],"a":[43,64,105],"novel,":[44],"versatile,":[45],"unsupervised":[47],"approach":[48,73,143],"to":[49],"learn":[50],"using":[53],"contrastive":[54],"learning,":[55],"where":[56],"<italic":[58],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[59,129],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">operational":[60],"time</i>":[61],"serves":[62],"proxy":[65],"degradation.":[67],"To":[68],"highlight":[69],"its":[70],"versatility,":[71],"evaluated":[75],"on":[76,117],"two":[77],"tasks":[78],"case":[80],"studies":[81],"with":[82],"different":[83],"characteristics:":[84],"wear":[85,111],"assessment":[86],"milling":[88,113],"machines":[89,114],"railway":[94,126],"wheels.":[95],"Our":[96],"results":[97],"show":[98],"proposed":[101],"methodology":[102],"effectively":[103],"learns":[104],"indicator":[107],"follows":[109],"(0.97":[115],"correlation":[116],"average)":[118],"suitable":[121],"in":[125],"wheels":[127],"(<inline-formula":[128],"xmlns:xlink=\"http://www.w3.org/1999/xlink\"><tex-math":[130],"notation=\"LaTeX\">$\\mathbf":[131],"{88.7\\%}$</tex-math></inline-formula>":[132],"balanced":[133],"accuracy).":[134],"The":[135],"conducted":[136],"experiments":[137],"demonstrate":[138],"versatility":[140],"various":[145],"systems":[146],"conditions.":[149]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":6}],"updated_date":"2026-03-27T14:29:43.386196","created_date":"2025-10-10T00:00:00"}
