Berk U.

Cambridge, MA

berkustun.com

Age: 27

I am a Ph.D. student in the Electrical Engineering and Computer Science Department at MIT. I am interested in developing new methods for data-driven decision-making and using them to solve problems in areas such as climate change, crime prediction, healthcare and revenue management.

Apr
14
awarded Caucus
Apr
8
comment Is the optimal solution of a strictly convex function over $\mathbb{Z}^d$ a rounded version of its optimal solution over $\mathbb{R}^d$
@MichaelGrant Could either you explain your train of thought?
Apr
8
revised Non-trivial lower bound approximation of a convex function using the second derivative at the minimum
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Apr
7
awarded Yearling
Apr
7
awarded Yearling
Apr
7
accepted Non-trivial lower bound approximation of a convex function using the second derivative at the minimum
Apr
7
comment Non-trivial lower bound approximation of a convex function using the second derivative at the minimum
Thank you so much for a clear explanation + proof! I do actually have the uniform bound on $f''(x)$! One follow-up question: how did you use the Taylor expansion to justify that there was a $z$ between $x$ and $x^*$ such that your first equation holds?
Apr
6
revised Non-trivial lower bound approximation of a convex function using the second derivative at the minimum
added 148 characters in body
Apr
6
revised Non-trivial lower bound approximation of a convex function using the second derivative at the minimum
added 148 characters in body
Apr
6
revised Non-trivial lower bound approximation of a convex function using the second derivative at the minimum
edited title
Apr
6
asked Non-trivial lower bound approximation of a convex function using the second derivative at the minimum
Apr
4
awarded Popular Question
Apr
1
comment How can I determine the version of a MAT file from MATLAB?
@Daniel is there anyway to capture the first few lines of the output of "type" in a variable? That could help as well.
Apr
1
revised How can I determine the version of a MAT file from MATLAB?
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Mar
31
asked How can I determine the version of a MAT file from MATLAB?
Mar
31
comment Is the optimal solution of a strictly convex function over $\mathbb{Z}^d$ a rounded version of its optimal solution over $\mathbb{R}^d$
Shot in the dark: is there some additional condition that we can impose on $f$ to upper bound the distance between $x^*$ and $x_{\text{int}}$
Mar
31
comment Is the optimal solution of a strictly convex function over $\mathbb{Z}^d$ a rounded version of its optimal solution over $\mathbb{R}^d$
Thank you for this really well-thought out example.
Mar
31
accepted Is the optimal solution of a strictly convex function over $\mathbb{Z}^d$ a rounded version of its optimal solution over $\mathbb{R}^d$
Mar
31
revised Is the optimal solution of a strictly convex function over $\mathbb{Z}^d$ a rounded version of its optimal solution over $\mathbb{R}^d$
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Mar
31
revised Is the optimal solution of a strictly convex function over $\mathbb{Z}^d$ a rounded version of its optimal solution over $\mathbb{R}^d$
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