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user570593
  • Member for 11 years, 1 month
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8 votes
2 answers
179 views

How to solve this equation (may be with least squares)?

3 votes
2 answers
3k views

How to check whether a function is convex or not?

2 votes
1 answer
2k views

Using gradient descent: cost decreases, then increases

1 vote
1 answer
131 views

Problems with vector vector derivative in optimization

1 vote
1 answer
231 views

how to find the solution of this cost function?

1 vote
1 answer
215 views

what is the upper bound of $\max \mathbf{w}^T\mathbf{x}_i$

1 vote
0 answers
273 views

Is generalized mean convex / concave?

1 vote
2 answers
137 views

Solving a One Dimensional Problem with Interpolation of Vectors

1 vote
3 answers
370 views

Gradient of $ W \mapsto \left\| W^T W - I \right\|_F^2 $

0 votes
0 answers
75 views

Is it possible to prove $\arg\min_a f(\max(\mathbf{a}^T\mathbf{b}_i)) = \arg\min_a f(\mathbf{a}^T\max(\mathbf{b}_i))$

0 votes
1 answer
302 views

How to find parameters that minimize the sum of squares, using Matlab?

0 votes
1 answer
612 views

Matrix vector multiplication inside summation

0 votes
1 answer
59 views

how to differentiate to optimize this function?

0 votes
1 answer
73 views

partial derivative of a vector with respect to a variable

0 votes
1 answer
391 views

Logistic regression maximum likelihood derivation

0 votes
1 answer
39 views

how to differentiate this equation (contains absolute and norm)

0 votes
1 answer
1k views

How to calculate probability from a conditional probability table?

0 votes
3 answers
30 views

Taking log on inequality

0 votes
1 answer
81 views

What is the derivative of this? [duplicate]

0 votes
1 answer
42 views

Eigen value system? solution

-1 votes
1 answer
191 views

Closed form vs methods based on gradient descent

-1 votes
1 answer
49 views

prove $\max \mathbf{a}^T \mathbf{b}_i \leq \mathbf{a}^T \mathbf{c}_i$