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<article article-type="Research Article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher">journal-of-information-and-optimization-sciences</journal-id>
      <journal-title-group>
        <journal-title>Journal of Information and Optimization Sciences</journal-title>
      </journal-title-group>
      <issn publication-format="electronic">2169-0103</issn>
      <issn publication-format="print">0252-2667</issn>
      <publisher>
        <publisher-name>Taru Publications</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.47974/JIOS-2487</article-id>
      <title-group>
        <article-title>Generalizable deepfake video detection for multimedia security via temporal–spatial artifact localization and adaptive sequence modelling</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name>
            <surname>Lal</surname>
            <given-names>Kavita</given-names>
          </name>
          <aff>Department of Computer Science and Engineering, Poornima University, Jaipur, Rajasthan, 302022, India</aff>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Shiwani</surname>
            <given-names>Savita</given-names>
          </name>
          <aff>Department of Computer Science and Engineering, Poornima University, Jaipur, Rajasthan, 302022, India</aff>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Gandhi</surname>
            <given-names>Geeta Chhabra</given-names>
          </name>
          <aff>Department of Computer Applications, Manipal University Jaipur, Jaipur, Rajasthan, 303007, India</aff>
        </contrib>
      </contrib-group>
      <volume>47</volume>
      <issue>10</issue>
      <fpage>3597</fpage>
      <lpage>3606</lpage>
      <pub-date date-type="pub">
        <day>31</day>
        <month>10</month>
        <year>2026</year>
      </pub-date>
      <abstract>
        <p>Due to the rise in face manipulation algorithms, it is difficult to distinguish real videos from computer-generated videos. For this, the paper proposes HABSNet, a model that performs artifact localization and temporal consistency analysis. The facial regions identified by MTCNN are analysed by ResNeXt-50 backbone model with the help of two-stream attention mechanism for detecting blending and frequency artifacts, as well as a BiLSTM based inter-frame self-attention gate for detecting unnatural eye movements and head pose changes. Trained on the FaceForensics++ (C23) dataset, the HABSNet achieves an accuracy of 94.88% and generalizes well on Celeb-DF v2 (0.950) and DFDC (0.920). For multimedia security the proposed framework contributes by allowing identification of manipulated videos across varied deepfake generation techniques.</p>
      </abstract>
      <kwd-group>
        <kwd>Deepfake detection</kwd>
        <kwd>Bidirectional LSTM</kwd>
        <kwd>ResNeXt-50</kwd>
        <kwd>Temporal self-attention</kwd>
        <kwd>Crossdataset generalization</kwd>
        <kwd>FaceForensics++</kwd>
        <kwd>Multimedia security</kwd>
      </kwd-group>
      <custom-meta-group>
        <custom-meta>
          <meta-name>access</meta-name>
          <meta-value>open</meta-value>
        </custom-meta>
        <custom-meta>
          <meta-name>retracted</meta-name>
          <meta-value>no</meta-value>
        </custom-meta>
      </custom-meta-group>
    </article-meta>
  </front>
</article>
