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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?
Mar
11
comment Poisson processes and coin flips
I guess by 'flipped', he means tossed and not simply turned upside down. Not sure though, but the first sentence says "is flipped and lands on...". In that case, the answer would remain $p$.
Feb
17
awarded  Inquisitive