<div dir="ltr">A gentle reminder that the talk will happen tomorrow (Tuesday) noon. This is the last AI seminar in 2017. </div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Dec 10, 2017 at 9:00 AM,  <span dir="ltr"><<a href="mailto:ai-seminar-announce-request@cs.cmu.edu" target="_blank">ai-seminar-announce-request@cs.cmu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send ai-seminar-announce mailing list submissions to<br>
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Today's Topics:<br>
<br>
   1.  AI Seminar sponsored by Apple -- Veeranjaneyulu  Sadhanala --<br>
      Dec 12 (Adams Wei Yu)<br>
<br>
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<br>
Message: 1<br>
Date: Sun, 10 Dec 2017 00:06:40 -0800<br>
From: Adams Wei Yu <<a href="mailto:weiyu@cs.cmu.edu">weiyu@cs.cmu.edu</a>><br>
To: <a href="mailto:ai-seminar-announce@cs.cmu.edu">ai-seminar-announce@cs.cmu.edu</a><br>
Cc: Veeranjaneyulu Sadhanala <<a href="mailto:veeranjaneyulus@gmail.com">veeranjaneyulus@gmail.com</a>><br>
Subject: [AI Seminar] AI Seminar sponsored by Apple -- Veeranjaneyulu<br>
        Sadhanala -- Dec 12<br>
Message-ID:<br>
        <<a href="mailto:CABzq7epyXB7yEg11M5RFnvt5PQtuhfCdopduPKMptYz620jeJA@mail.gmail.com">CABzq7epyXB7yEg11M5RFnvt5PQtu<wbr>hfCdopduPKMptYz620jeJA@mail.<wbr>gmail.com</a>><br>
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<br>
Dear faculty and students,<br>
<br>
We look forward to seeing you next Tuesday, Dec 12, at noon in NSH 3305 for<br>
AI Seminar sponsored by Apple. To learn more about the seminar series,<br>
please visit the AI Seminar webpage <<a href="http://www.cs.cmu.edu/~aiseminar/" rel="noreferrer" target="_blank">http://www.cs.cmu.edu/~<wbr>aiseminar/</a>>.<br>
<br>
On Tuesday, Veeranjaneyulu Sadhanala <<a href="http://www.cs.cmu.edu/~vsadhana/" rel="noreferrer" target="_blank">http://www.cs.cmu.edu/~<wbr>vsadhana/</a>><br>
will give the following talk:<br>
<br>
Title: Escaping saddle points in neural network training and other<br>
non-convex optimization problems<br>
<br>
Abstract:<br>
<br>
In non-convex optimization problems, first-order based methods can get<br>
stuck at saddle points which are not even local minima. The generalization<br>
error at saddle points is typically large and hence it is important to move<br>
away from them. We discuss recently developed algorithms to escape saddle<br>
points. In particular, we discuss gradient descent perturbed with additive<br>
isotropic noise and Newton method with cubic regularization. They converge<br>
to \epsilon-second order stationary points (informally, local minima) in<br>
O(polylog(d) / \epsilon^2) time and O(1/ \epsilon^1.5) iterations<br>
respectively under some conditions on the structure of the objective<br>
function.<br>
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End of ai-seminar-announce Digest, Vol 79, Issue 3<br>
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