{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T20:39:46Z","timestamp":1772138386250,"version":"3.50.1"},"reference-count":37,"publisher":"Oxford University Press (OUP)","issue":"8","license":[{"start":{"date-parts":[[2020,6,17]],"date-time":"2020-06-17T00:00:00Z","timestamp":1592352000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["T32-AR5588511"],"award-info":[{"award-number":["T32-AR5588511"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["T32-GM7489714"],"award-info":[{"award-number":["T32-GM7489714"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R21-CA242940"],"award-info":[{"award-number":["R21-CA242940"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,8,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>A major bottleneck hindering utilization of electronic health record data for translational research is the lack of precise phenotype labels. Chart review as well as rule-based and supervised phenotyping approaches require laborious expert input, hampering applicability to studies that require many phenotypes to be defined and labeled de novo. Though International Classification of Diseases codes are often used as surrogates for true labels in this setting, these sometimes suffer from poor specificity. We propose a fully automated topic modeling algorithm to simultaneously annotate multiple phenotypes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>Surrogate-guided ensemble latent Dirichlet allocation (sureLDA) is a label-free multidimensional phenotyping method. It first uses the PheNorm algorithm to initialize probabilities based on 2 surrogate features for each target phenotype, and then leverages these probabilities to constrain the LDA topic model to generate phenotype-specific topics. Finally, it combines phenotype-feature counts with surrogates via clustering ensemble to yield final phenotype probabilities.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>sureLDA achieves reliably high accuracy and precision across a range of simulated and real-world phenotypes. Its performance is robust to phenotype prevalence and relative informativeness of surogate vs nonsurrogate features. It also exhibits powerful feature selection properties.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>sureLDA combines attractive properties of PheNorm and LDA to achieve high accuracy and precision robust to diverse phenotype characteristics. It offers particular improvement for phenotypes insufficiently captured by a few surrogate features. Moreover, sureLDA\u2019s feature selection ability enables it to handle high feature dimensions and produce interpretable computational phenotypes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>sureLDA is well suited toward large-scale electronic health record phenotyping for highly multiphenotype applications such as phenome-wide association studies .<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/jamia\/ocaa079","type":"journal-article","created":{"date-parts":[[2020,4,28]],"date-time":"2020-04-28T15:13:42Z","timestamp":1588086822000},"page":"1235-1243","source":"Crossref","is-referenced-by-count":33,"title":["sureLDA: A multidisease automated phenotyping method for the electronic health record"],"prefix":"10.1093","volume":"27","author":[{"given":"Yuri","family":"Ahuja","sequence":"first","affiliation":[{"name":"Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA"},{"name":"Harvard Medical School, Boston, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Doudou","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA"},{"name":"Department of Statistics, University of California, Davis, Davis, California, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zeling","family":"He","sequence":"additional","affiliation":[{"name":"Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiehuan","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA"},{"name":"Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System, Boston, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Victor M","family":"Castro","sequence":"additional","affiliation":[{"name":"Partners HealthCare, Charlestown, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vivian","family":"Gainer","sequence":"additional","affiliation":[{"name":"Partners HealthCare, Charlestown, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shawn N","family":"Murphy","sequence":"additional","affiliation":[{"name":"Harvard Medical School, Boston, Massachusetts, USA"},{"name":"Partners HealthCare, Charlestown, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chuan","family":"Hong","sequence":"additional","affiliation":[{"name":"Department of Biostatistics, Harvard T.H. 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