<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v2.0 20040830//EN" "journalpublishing.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="2.0" xml:lang="en" article-type="retraction"><front><journal-meta><journal-id journal-id-type="nlm-ta">JMIR Med Inform</journal-id><journal-id journal-id-type="publisher-id">medinform</journal-id><journal-id journal-id-type="index">7</journal-id><journal-title>JMIR Medical Informatics</journal-title><abbrev-journal-title>JMIR Med Inform</abbrev-journal-title><issn pub-type="epub">2291-9694</issn><publisher><publisher-name>JMIR Publications</publisher-name><publisher-loc>Toronto, Canada</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">v13i1e77635</article-id><article-id pub-id-type="doi">10.2196/77635</article-id><article-categories><subj-group subj-group-type="heading"><subject>Retraction</subject></subj-group></article-categories><title-group><article-title>Retraction: &#x201C;A Dynamic Adaptive Ensemble Learning Framework for Noninvasive Mild Cognitive Impairment Detection: Development and Validation Study&#x201D;</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><collab>JMIR Editorial Office</collab><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff id="aff1"><institution>JMIR Publications</institution><addr-line>130 Queens Quay E, Suite 1100</addr-line><addr-line>Toronto</addr-line><addr-line>ON</addr-line><country>Canada</country></aff><contrib-group><contrib contrib-type="editor"><name name-style="western"><surname>Office</surname><given-names>JMIR Editorial</given-names></name></contrib></contrib-group><author-notes><corresp>Correspondence to JMIR Editorial Office, JMIR Publications, 130 Queens Quay E, Suite 1100, Toronto, ON, M5A 0P6, Canada, 1 416 583 2040; <email>ed-support@jmir.org</email></corresp></author-notes><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>23</day><month>5</month><year>2025</year></pub-date><volume>13</volume><elocation-id>e77635</elocation-id><history><date date-type="received"><day>16</day><month>05</month><year>2025</year></date><date date-type="accepted"><day>16</day><month>05</month><year>2025</year></date></history><copyright-statement>&#x00A9; JMIR Editorial Office. Originally published in JMIR Medical Informatics (<ext-link ext-link-type="uri" xlink:href="https://medinform.jmir.org">https://medinform.jmir.org</ext-link>), 23.5.2025. </copyright-statement><copyright-year>2025</copyright-year><license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Medical Informatics, is properly cited. The complete bibliographic information, a link to the original publication on <ext-link ext-link-type="uri" xlink:href="https://medinform.jmir.org/">https://medinform.jmir.org/</ext-link>, as well as this copyright and license information must be included.</p></license><self-uri xlink:type="simple" xlink:href="https://medinform.jmir.org/2025/1/e77635"/><related-article related-article-type="retracted article" ext-link-type="doi" xlink:href="10.2196/60250" xlink:title="Retraction of" xlink:type="simple">https://medinform.jmir.org/2025/1/e60250</related-article><related-article related-article-type="companion" ext-link-type="doi" xlink:href="10.2196/75352" xlink:title="See also related article" xlink:type="simple">https://medinform.jmir.org/2025/1/e75352/</related-article></article-meta></front><body><p>The JMIR Editorial Office is retracting the article &#x201C;A Dynamic Adaptive Ensemble Learning Framework for Noninvasive Mild Cognitive Impairment Detection: Development and Validation Study&#x201D; by Li et al [<xref ref-type="bibr" rid="ref1">1</xref>] following investigation due to concerns over irregularities during the peer review process. We regret that these issues were not resolved prior to publication.</p><p>All authors disagreed with the retraction decision.</p></body><back><ref-list><title>References</title><ref id="ref1"><label>1</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Li</surname><given-names>A</given-names> </name><name name-style="western"><surname>Li</surname><given-names>J</given-names> </name><name name-style="western"><surname>Hu</surname><given-names>Y</given-names> </name><name name-style="western"><surname>Geng</surname><given-names>Y</given-names> </name><name name-style="western"><surname>Qiang</surname><given-names>Y</given-names> </name><name name-style="western"><surname>Zhao</surname><given-names>J</given-names> </name></person-group><article-title>A dynamic adaptive ensemble learning framework for noninvasive mild cognitive impairment detection: development and validation study</article-title><source>JMIR Med Inform</source><year>2025</year><month>01</month><day>20</day><volume>13</volume><fpage>e60250</fpage></nlm-citation></ref></ref-list></back></article>