{"id":"https://openalex.org/W2990628904","doi":"https://doi.org/10.1109/ichi.2019.8904629","title":"An Ensemble Method for Data Imputation","display_name":"An Ensemble Method for Data Imputation","publication_year":2019,"publication_date":"2019-06-01","ids":{"openalex":"https://openalex.org/W2990628904","doi":"https://doi.org/10.1109/ichi.2019.8904629","mag":"2990628904"},"language":"en","primary_location":{"id":"doi:10.1109/ichi.2019.8904629","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ichi.2019.8904629","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 IEEE International Conference on Healthcare Informatics (ICHI)","raw_type":"proceedings-article"},"type":"article","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/A5069654423","display_name":"Yichen Ding","orcid":"https://orcid.org/0000-0002-6242-3506"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Yichen Ding","raw_affiliation_strings":["University of Iowa,Business Analytics Department,Iowa City,IA,USA","Business Analytics Department, University of Iowa, Iowa City, IA, USA"],"affiliations":[{"raw_affiliation_string":"University of Iowa,Business Analytics Department,Iowa City,IA,USA","institution_ids":["https://openalex.org/I126307644"]},{"raw_affiliation_string":"Business Analytics Department, University of Iowa, Iowa City, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031033430","display_name":"W. Nick Street","orcid":"https://orcid.org/0000-0002-1632-5905"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"W. Nick Street","raw_affiliation_strings":["University of Iowa,Business Analytics Department,Iowa City,IA,USA","Business Analytics Department, University of Iowa, Iowa City, IA, USA"],"affiliations":[{"raw_affiliation_string":"University of Iowa,Business Analytics Department,Iowa City,IA,USA","institution_ids":["https://openalex.org/I126307644"]},{"raw_affiliation_string":"Business Analytics Department, University of Iowa, Iowa City, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017195934","display_name":"Ling Tong","orcid":"https://orcid.org/0000-0003-1883-7792"},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ling Tong","raw_affiliation_strings":["University of Iowa,Business Analytics Department,Iowa City,IA,USA","Business Analytics Department, University of Iowa, Iowa City, IA, USA"],"affiliations":[{"raw_affiliation_string":"University of Iowa,Business Analytics Department,Iowa City,IA,USA","institution_ids":["https://openalex.org/I126307644"]},{"raw_affiliation_string":"Business Analytics Department, University of Iowa, Iowa City, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5059461819","display_name":"Shangguan Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shangguan Wang","raw_affiliation_strings":["University of Iowa,Business Analytics Department,Iowa City,IA,USA","Business Analytics Department, University of Iowa, Iowa City, IA, USA"],"affiliations":[{"raw_affiliation_string":"University of Iowa,Business Analytics Department,Iowa City,IA,USA","institution_ids":["https://openalex.org/I126307644"]},{"raw_affiliation_string":"Business Analytics Department, University of Iowa, Iowa City, IA, USA","institution_ids":["https://openalex.org/I126307644"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5069654423"],"corresponding_institution_ids":["https://openalex.org/I126307644"],"apc_list":null,"apc_paid":null,"fwci":0.4201,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.72056246,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"3"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13702","display_name":"Machine Learning in Healthcare","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T13702","display_name":"Machine Learning in Healthcare","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10136","display_name":"Statistical Methods and Inference","score":0.9822999835014343,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"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/T12205","display_name":"Time Series Analysis and Forecasting","score":0.965499997138977,"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/missing-data","display_name":"Missing data","score":0.7828047275543213},{"id":"https://openalex.org/keywords/imputation","display_name":"Imputation (statistics)","score":0.7577054500579834},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6776987910270691},{"id":"https://openalex.org/keywords/timestamp","display_name":"Timestamp","score":0.6400911808013916},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.5648614168167114},{"id":"https://openalex.org/keywords/analytics","display_name":"Analytics","score":0.4711906909942627},{"id":"https://openalex.org/keywords/health-care","display_name":"Health care","score":0.44385725259780884},{"id":"https://openalex.org/keywords/medical-diagnosis","display_name":"Medical diagnosis","score":0.43446341156959534},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4268607199192047},{"id":"https://openalex.org/keywords/data-set","display_name":"Data set","score":0.4200733006000519},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.41787198185920715},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.1834363043308258}],"concepts":[{"id":"https://openalex.org/C9357733","wikidata":"https://www.wikidata.org/wiki/Q6878417","display_name":"Missing data","level":2,"score":0.7828047275543213},{"id":"https://openalex.org/C58041806","wikidata":"https://www.wikidata.org/wiki/Q1660484","display_name":"Imputation (statistics)","level":3,"score":0.7577054500579834},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6776987910270691},{"id":"https://openalex.org/C113954288","wikidata":"https://www.wikidata.org/wiki/Q186885","display_name":"Timestamp","level":2,"score":0.6400911808013916},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.5648614168167114},{"id":"https://openalex.org/C79158427","wikidata":"https://www.wikidata.org/wiki/Q485396","display_name":"Analytics","level":2,"score":0.4711906909942627},{"id":"https://openalex.org/C160735492","wikidata":"https://www.wikidata.org/wiki/Q31207","display_name":"Health care","level":2,"score":0.44385725259780884},{"id":"https://openalex.org/C534262118","wikidata":"https://www.wikidata.org/wiki/Q177719","display_name":"Medical diagnosis","level":2,"score":0.43446341156959534},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4268607199192047},{"id":"https://openalex.org/C58489278","wikidata":"https://www.wikidata.org/wiki/Q1172284","display_name":"Data set","level":2,"score":0.4200733006000519},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.41787198185920715},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.1834363043308258},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ichi.2019.8904629","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ichi.2019.8904629","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 IEEE International Conference on Healthcare Informatics (ICHI)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6200000047683716,"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1810943226","https://openalex.org/W1912572177","https://openalex.org/W1919216911","https://openalex.org/W2130681737","https://openalex.org/W2496114304","https://openalex.org/W2516038852","https://openalex.org/W2535406655","https://openalex.org/W2771817472","https://openalex.org/W6638273328","https://openalex.org/W6639939241","https://openalex.org/W6679272984"],"related_works":["https://openalex.org/W2181530120","https://openalex.org/W4211215373","https://openalex.org/W2024529227","https://openalex.org/W2055961818","https://openalex.org/W1574575415","https://openalex.org/W3144172081","https://openalex.org/W3179858851","https://openalex.org/W3028371478","https://openalex.org/W2081476516","https://openalex.org/W2581984549"],"abstract_inverted_index":{"Healthcare":[0],"analytics":[1],"is":[2],"transforming":[3],"the":[4,56,64,98,145],"healthcare":[5],"industry,":[6],"finding":[7],"novel":[8],"and":[9,27,52,69,82,91,136,161],"useful":[10],"patterns":[11],"in":[12,102],"patient":[13,60],"data":[14,43,61,73,135,147],"such":[15,48],"as":[16,49],"electronic":[17],"health":[18],"records":[19],"(EHRs),":[20],"to":[21,35,44,164,178],"provide":[22,45],"patients":[23],"with":[24,97],"improved":[25],"care":[26,47],"service.":[28],"Researchers":[29],"train":[30],"machine":[31],"learning":[32],"(ML)":[33],"algorithms":[34],"discover":[36],"new":[37],"knowledge":[38],"by":[39,128,149],"mining":[40],"patients'":[41],"clinical":[42,59,80,110,134,167],"better":[46],"accurate":[50],"diagnoses":[51],"personalized":[53],"therapy.":[54],"However,":[55],"quality":[57],"of":[58,71,106,140,175],"may":[62,120],"inhibit":[63],"discovery":[65],"process.":[66],"The":[67],"type":[68],"frequency":[70],"collected":[72],"varies":[74],"based":[75],"on":[76],"a":[77,107,173],"patient'":[78,108],"s":[79,109],"condition":[81,111],"administrative":[83],"requirements.":[84],"Patients":[85],"can":[86],"have":[87],"different":[88,94,116],"diagnostic":[89],"tests":[90],"treatments":[92],"at":[93,115],"times,":[95],"even":[96],"same":[99],"symptoms.":[100],"Therefore":[101],"EHRs,":[103],"many":[104],"aspects":[105],"could":[112],"be":[113,121,126],"unmeasured":[114],"timestamps.":[117],"Missing":[118],"measurements":[119],"clinically":[122],"important,":[123],"but":[124],"cannot":[125],"used":[127],"ML":[129,141],"algorithms.":[130],"To":[131],"utilize":[132],"all":[133],"achieve":[137],"optimal":[138],"performance":[139,181],"algorithms,":[142],"we":[143],"address":[144],"missing":[146,151],"issue":[148],"imputing":[150],"time":[152],"series":[153],"values.":[154],"We":[155],"will":[156],"describe":[157],"our":[158],"imputation":[159],"methods":[160],"apply":[162],"them":[163],"13":[165],"common":[166],"laboratory":[168],"test":[169],"results":[170],"obtained":[171],"from":[172],"set":[174],"8267":[176],"inpatients":[177],"evaluate":[179],"their":[180],"using":[182],"normalized":[183],"root-mean-squared":[184],"deviation":[185],"(nRMSD)":[186],"[1].":[187]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}