Skip to main content
Slim Shady's user avatar
Slim Shady's user avatar
Slim Shady's user avatar
Slim Shady
  • Member for 2 years, 10 months
  • Last seen more than a month ago
3 votes
3 answers
108 views

Why is $\frac{n}{2(n+1)^2}\leq\frac{1}{4}$?

3 votes
1 answer
296 views

Hidden Markov Model

2 votes
1 answer
56 views

Showing that $\lim_{l\to\infty}\frac{E\left(X^{l+1}\right)}{E\left(X^l\right)}=n$

2 votes
0 answers
506 views

Lottery Probability Questions

2 votes
1 answer
265 views

Differentiating a Vector and a Matrix w.r.t. a Vector [Matrix Calculus]

2 votes
2 answers
176 views

A deck of cards includes 40 different cards. There are 8 cards in each of 5 suits. The cards are shuffled and a player receives 3 (different) cards.

2 votes
1 answer
592 views

Method of Moments estimation

2 votes
0 answers
88 views

Would you ‘buy’ a prediction from Prof. Gott?

2 votes
1 answer
166 views

Expected value of random walk with different probabilities

2 votes
1 answer
901 views

Why is the inequality true?

2 votes
1 answer
322 views

How is $w=\lambda^{-1}X'(y-Xw)$ derived? [Ridge Regression]

1 vote
0 answers
88 views

How do the terms cancel out?

1 vote
1 answer
766 views

Generating function of a random walk

1 vote
0 answers
69 views

Determine when the random walk terminates

1 vote
1 answer
46 views

What would be the partial derivative w.r.t to $a\in \mathbb{R}^{n\times 1}$ of $(Xa)^TXa$?

1 vote
1 answer
69 views

Bias and asymptotically biased

1 vote
1 answer
60 views

Joint probability exercise

1 vote
1 answer
134 views

Probability the shifty man next to me is a terrorist

1 vote
0 answers
15 views

Why if the "True Error" equals $0$ i.e. $L_{(\mathcal{D}, f)}(h^{*}) = 0$ then the "Training Error" equals $0$ i.e. $ L_{S}(h^{*}) = 0$?

1 vote
1 answer
100 views

Pattern Recognition and ML Exercise 1.4

1 vote
2 answers
343 views

How many times do you need to play to win with probability at least $0.6$? [duplicate]

1 vote
3 answers
304 views

Showing that $P(X=k \mid X+Y=n)=\frac{1}{n+1}$

1 vote
1 answer
63 views

$\beta$-recursion calculation in matrix form in Hidden Markov Models

1 vote
1 answer
63 views

Prove $\int^{\infty}_0f'(x)g'(x)\mathrm{dx}$ is an inner product

1 vote
2 answers
2k views

Prove that if $f(x)=x^TQx$ is convex then $Q$ is positive semidefinite

1 vote
0 answers
73 views

ANOVA Kernel: Show that $K_a(x,t)=\langle\phi_a(x),\phi_a(t)\rangle,\forall x,t\in\mathbb{R}^n$

0 votes
1 answer
580 views

Is $K(x,t)=\exp(x_1t_1)$ a valid kernel?

0 votes
1 answer
84 views

Level set of a convex function itself convex

0 votes
2 answers
114 views

Isn't $P(X>x_{0.9})=P(Z>1.28)=0.1?$

0 votes
2 answers
189 views

Showing that $E(X)=\sum^{\infty}_{n=1}P(X\geq n)$