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3h
accepted Which of two quantities is greater?
4h
asked Which of two quantities is greater?
May
21
comment Computing expectation of a function of two random variables
@zoli: Yes, there are $N-1$ independent draws and the $N^{th} $ is dependent on the previous draws. Your understanding is right.
May
21
comment Computing expectation of a function of two random variables
@zoli: Why not? I never said within array $X$, the draws are independent. $x_n(\omega)=S_x-\sum_{i=1}^{N-1}x_i$ for all $\omega$.
May
21
comment Computing expectation of a function of two random variables
@zoli: One number in the array. Distribution with finite support on the real line.
May
21
asked Computing expectation of a function of two random variables
May
13
asked Scale-free property of random graphs
Apr
24
comment Continuity of optimisation problem
@calculus: I have solved $F(z)$, the issue is about the continuity of $F(z)$. The solution exhibits a discontinuity at $z=0$. My question is for what classes of optimisation problems will such a discontinuity not be there?
Apr
24
asked Continuity of optimisation problem
Apr
17
awarded  Popular Question
Apr
7
revised Bounding $x^\top Ay/x^\top y$
added 15 characters in body
Apr
7
comment Bounding $x^\top Ay/x^\top y$
@Tryss: By assumption, they are not orthogonal. Clarified.
Apr
7
revised Bounding $x^\top Ay/x^\top y$
edited body
Apr
7
asked Bounding $x^\top Ay/x^\top y$
Apr
5
accepted Is the optimum of this problem unique?
Apr
2
comment Is the optimum of this problem unique?
Thanks Hans. I guess a sufficient condition for interior solution will be: $\sum_j b_j \log(a_j/b_j)-(\sum_j b_j)\log(a_i/b_i)<x$, for all $i$.
Apr
2
comment Is the optimum of this problem unique?
I know that, but how is the minimum dependent on $a_i$s and $b_i$s?
Apr
2
asked Is the optimum of this problem unique?
Apr
2
accepted Is this function jointly convex in its variables?
Mar
31
asked Is this function jointly convex in its variables?