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        <datestamp>2025-01-19T09:40:47Z</datestamp>
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          <dc:title>t-SNEの加速と力学系</dc:title>
          <dc:title xml:lang="en">Dynamics of the accelerated t-SNE</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>岩崎, 喬一</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>日野, 英逸</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Kyoichi, Iwasaki</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Hideitsu, Hino</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">機械学習・一般</jpcoar:subject>
          <datacite:description descriptionType="Other">本研究では，探索的データ解析において複雑なデータセットを可視化するためのツールである t- 分布型確率的近傍埋め込み（t-SNE）の収束性を，Nesterov 加速勾配法を取り入れることで向上させる手法を提案する．t-SNE とスペクトルクラスタリングおよび力学系を結びつける先行研究に基づき，加速ダイナミクスを含むように分析を拡張する．これにより，アルゴリズムの挙動の新しい側面として Bessel 関数および修正 Bessel 関数により記述される解軌道が得られた．隣接行列の固有値に対応した理論的性質を明らかにすることに加えて，Nesterov 加速勾配法により，可視化の品質を保ちつつ，従来の勾配降下法と比較して収束性を改善することを実験的に示す．</datacite:description>
          <datacite:description descriptionType="Other">This study introduces an approach to enhancing the eﬃciency of t-Stochastic Neighbor Embedding (t-SNE), a popular tool for visualizing complex datasets in exploratory data analysis, by incorporating the Nesterov’s accelerated gradient method. Building on the foundational work that connects t-SNE with spectral clustering and dynamical systems, we extend the analysis to include accelerated dynamics, revealing the emergence of Bessel and modiﬁed Bessel functions as a novel aspect of the algorithm’s behavior. Our approach improves convergence speed compared to traditional gradient descent methods, without sacriﬁcing the quality of the visualization. This advancement not only enhances the practical utility of t-SNE but also contributes to a deeper understanding of its underlying dynamics.</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2024-06-13</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18gh">technical report</dc:type>
          <jpcoar:identifier identifierType="URI">https://ipsj.ixsq.nii.ac.jp/records/234891</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="ISSN">2188-8833</jpcoar:sourceIdentifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AN10505667</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>研究報告数理モデル化と問題解決（MPS）</jpcoar:sourceTitle>
          <jpcoar:volume>2024-MPS-148</jpcoar:volume>
          <jpcoar:issue>4</jpcoar:issue>
          <jpcoar:pageStart>1</jpcoar:pageStart>
          <jpcoar:pageEnd>8</jpcoar:pageEnd>
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