<node id="692930">
  <nid>692930</nid>
  <type>event</type>
  <uid>
    <user id="30957"><![CDATA[30957]]></user>
  </uid>
  <created>1790770504</created>
  <changed>1790770794</changed>
  <title><![CDATA[CRA SEMINAR | Chen Chen | GT Alumni | Host: Jiapeng Gao]]></title>
  <body><![CDATA[<p><strong>Speaker:</strong> Chen Chen</p><p><strong>Host: </strong>Jiapeng Gao</p><p><strong>Title: Title</strong>: Machine Learning Across Scales: From Hidden Exoplanets to Efficient Model Training</p><p><strong>Abstract</strong>:</p><p>Non-transiting planets can remain hidden while leaving dynamical signals in the transit timing variations (TTVs) of observed&nbsp;planets. DeepTTV provides a machine learning (ML) approach to this inverse problem, using N-body simulations to generate training data for a neural network that combines recurrent and Transformer architectures to infer the mass and orbital properties of unseen planetary companions. In the first part of this talk, I will discuss DeepTTV. In the second part, I will introduce my current work in industry on improving the efficiency of large-scale ML training, including directions such as transfer learning and improving computational resource utilization.</p>]]></body>
  <field_summary_sentence>
    <item>
      <value><![CDATA[CRA SEMINAR | Chen Chen | GT Alumni | Host: Jiapeng Gao]]></value>
    </item>
  </field_summary_sentence>
  <field_summary>
    <item>
      <value><![CDATA[<p>&nbsp;</p><p><strong>Abstract</strong>:</p><p>Non-transiting planets can remain hidden while leaving dynamical signals in the transit timing variations (TTVs) of observed&nbsp;planets. DeepTTV provides a machine learning (ML) approach to this inverse problem, using N-body simulations to generate training data for a neural network that combines recurrent and Transformer architectures to infer the mass and orbital properties of unseen planetary companions. In the first part of this talk, I will discuss DeepTTV. In the second part, I will introduce my current work in industry on improving the efficiency of large-scale ML training, including directions such as transfer learning and improving computational resource utilization.</p><p>&nbsp;</p><p>&nbsp;</p>]]></value>
    </item>
  </field_summary>
  <field_time>
    <item>
      <value><![CDATA[2026-10-15T15:30:30-04:00]]></value>
      <value2><![CDATA[2026-10-15T16:30:00-04:00]]></value2>
      <rrule><![CDATA[]]></rrule>
      <timezone><![CDATA[America/New_York]]></timezone>
    </item>
  </field_time>
  <field_fee>
    <item>
      <value><![CDATA[]]></value>
    </item>
  </field_fee>
  <field_extras>
      </field_extras>
  <field_audience>
          <item>
        <value><![CDATA[Faculty/Staff]]></value>
      </item>
          <item>
        <value><![CDATA[Postdoc]]></value>
      </item>
          <item>
        <value><![CDATA[Graduate students]]></value>
      </item>
      </field_audience>
  <field_media>
          <item>
        <nid>
          <node id="681302">
            <nid>681302</nid>
            <type>image</type>
            <title><![CDATA[chenchen-10.15.26.jpg]]></title>
            <body><![CDATA[]]></body>
                          <field_image>
                <item>
                  <fid>265673</fid>
                  <filename><![CDATA[chenchen-10.15.26.jpg]]></filename>
                  <filepath><![CDATA[/sites/default/files/2026/09/30/chenchen-10.15.26.jpg]]></filepath>
                  <file_full_path><![CDATA[http://hg.gatech.edu//sites/default/files/2026/09/30/chenchen-10.15.26.jpg]]></file_full_path>
                  <filemime>image/jpeg</filemime>
                  <image_740><![CDATA[]]></image_740>
                  <image_alt><![CDATA[chenchen-10.15.26.jpg]]></image_alt>
                </item>
              </field_image>
            
                      </node>
        </nid>
      </item>
      </field_media>
  <field_contact>
    <item>
      <value><![CDATA[]]></value>
    </item>
  </field_contact>
  <field_location>
    <item>
      <value><![CDATA[College of Computing Building (CCB) Rm:103]]></value>
    </item>
  </field_location>
  <field_sidebar>
    <item>
      <value><![CDATA[]]></value>
    </item>
  </field_sidebar>
  <field_phone>
    <item>
      <value><![CDATA[]]></value>
    </item>
  </field_phone>
  <field_url>
    <item>
      <url><![CDATA[]]></url>
      <title><![CDATA[]]></title>
            <attributes><![CDATA[]]></attributes>
    </item>
  </field_url>
  <field_email>
    <item>
      <email><![CDATA[]]></email>
    </item>
  </field_email>
  <field_boilerplate>
    <item>
      <nid><![CDATA[]]></nid>
    </item>
  </field_boilerplate>
  <links_related>
      </links_related>
  <files>
      </files>
  <og_groups>
          <item>126011</item>
      </og_groups>
  <og_groups_both>
          <item><![CDATA[School of Physics]]></item>
      </og_groups_both>
  <field_categories>
          <item>
        <tid>1795</tid>
        <value><![CDATA[Seminar/Lecture/Colloquium]]></value>
      </item>
      </field_categories>
  <field_keywords>
      </field_keywords>
  <field_userdata><![CDATA[]]></field_userdata>
</node>
