{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T02:53:01Z","timestamp":1782442381387,"version":"3.54.5"},"reference-count":19,"publisher":"Oxford University Press (OUP)","issue":"4","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\/501100008982","name":"National Science Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008982","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,12,1]]},"abstract":"<jats:title>Summary<\/jats:title>\n               <jats:p>Classification with high-dimensional data is of widespread interest and often involves dealing with imbalanced data. Bayesian classification approaches are hampered by the fact that current Markov chain Monte Carlo algorithms for posterior computation become inefficient as the number $p$ of predictors or the number $n$ of subjects to classify gets large, because of the increasing computational time per step and worsening mixing rates. One strategy is to employ a gradient-based sampler to improve mixing while using data subsamples to reduce the per-step computational complexity. However, the usual subsampling breaks down when applied to imbalanced data. Instead, we generalize piecewise-deterministic Markov chain Monte Carlo algorithms to include importance-weighted and mini-batch subsampling. These maintain the correct stationary distribution with arbitrarily small subsamples and substantially outperform current competitors. We provide theoretical support for the proposed approach and demonstrate its performance gains in simulated data examples and an application to cancer data.<\/jats:p>","DOI":"10.1093\/biomet\/asaa035","type":"journal-article","created":{"date-parts":[[2020,4,17]],"date-time":"2020-04-17T19:11:09Z","timestamp":1587150669000},"page":"1005-1012","source":"Crossref","is-referenced-by-count":10,"title":["Efficient posterior sampling for high-dimensional imbalanced logistic regression"],"prefix":"10.1093","volume":"107","author":[{"given":"Deborshee","family":"Sen","sequence":"first","affiliation":[{"name":"Department of Statistical Science, Duke University, Box 90251, Durham, North Carolina 27708, U.S.A"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Sachs","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Duke University, Box 90320, Durham, North Carolina 27708, U.S.A"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianfeng","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Duke University, Box 90320, Durham, North Carolina 27708, U.S.A"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David B","family":"Dunson","sequence":"additional","affiliation":[{"name":"Department of Statistical Science, Duke University, Box 90251, Durham, North Carolina 27708, U.S.A"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2020,6,17]]},"reference":[{"key":"2020121116434370500_B1","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1007\/s11222-014-9521-x","article-title":"Noisy Monte Carlo: Convergence of Markov chains with approximate transition kernels","volume":"26","author":"Alquier,","year":"2016","journal-title":"Statist. 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