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<p class="MsoNormal">This is an announcement of Suhail Rehman's Candidacy Exam.<o:p></o:p></p>
<p class="MsoNormal">===============================================<o:p></o:p></p>
<p class="MsoNormal">Candidate: Suhail Rehman<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Date: Wednesday, February 16, 2022<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Time: 12:30 pm CST<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Remote Location: https://uchicago.zoom.us/j/95986092331?pwd=bjFrNzBwUzNBaTJLUXh5dWJkQnduQT09 Meeting ID: 959 8609 2331 Passcode: 517138<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Title: Reconstructing the Lineage of Artifacts in Data Lakes<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Abstract: As organizations' data storage, archival, and retrieval needs have evolved beyond simple
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<p class="MsoNormal">relational databases to complex collaborative data lake architectures, a data stewardship
<o:p></o:p></p>
<p class="MsoNormal">and organization crisis has emerged. It is difficult to reason about existing data artifacts in
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<p class="MsoNormal">data lakes without reliable lineage information and metadata. There is substantial interest in<o:p></o:p></p>
<p class="MsoNormal">automated tools and techniques inferring data artifacts' lineage within data lakes.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In this thesis, we the study of lineage in data lakes and specifically the possibility, accuracy,<o:p></o:p></p>
<p class="MsoNormal">and efficiency of retrospectively constructing the lineage of data artifacts within a data lake.<o:p></o:p></p>
<p class="MsoNormal">Specifically, we are proposing a method that retrospectively uses sketch and estimation<o:p></o:p></p>
<p class="MsoNormal">techniques, as well as similarity functions applied at various levels of granularity to (a) organize<o:p></o:p></p>
<p class="MsoNormal">data artifacts into the individual workflows that generated them, and (b) infer a lineage tree for<o:p></o:p></p>
<p class="MsoNormal">said artifacts that most closely resemble their ground truth derivations.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Advisors: Aaron Elmore<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Committee Members: Aaron Elmore, Michael Franklin, and Raul Castro Fernandez<o:p></o:p></p>
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