Siong Thye Goh's user avatar
Siong Thye Goh's user avatar
Siong Thye Goh's user avatar
Siong Thye Goh
  • Member for 7 years, 1 month
  • Last seen this week
  • Singapore
16 votes
Accepted

What is the significance of the log base being 2 in entropy?

16 votes

Equilibrium distribution of Markov chain

10 votes

If the sum of the probabilities of events is equal to the probability of their union, does that imply that the events are disjoint?

10 votes

difference between convex and concave functions

10 votes
Accepted

Why does keras binary_crossentropy loss function return wrong values?

9 votes
Accepted

In PCA, why do we assume that the covariance matrix is always diagonalizable?

9 votes

Random Forest and Decision Tree Algorithm

8 votes
Accepted

How to calculate the derivative of crossentropy error function?

8 votes
Accepted

Why can minimizing $\|w\|$ be solved by minimizing $\frac{\|w\|^2}{2}$?

8 votes

Inequality on binomial distribution

7 votes
Accepted

Is it possible to have $P(\mu_X -2\sigma_X < X < \mu_X + 2\sigma_X)=0.6$?

7 votes

Why does $l_2$ norm regularization not have a square root?

7 votes
Accepted

Projections in new coordinates in PCA example

6 votes
Accepted

What is the correlation of $X_1 + X_2$ and $X_1 - X_2$?

6 votes
Accepted

Zero mean unit variance random variables bound on probability

6 votes
Accepted

constrained convex optimisation for a multivariate normal distribution?

6 votes
Accepted

Prove that $E(X\ln X)\le E X E\ln X$

6 votes
Accepted

Properties of normal distribution

5 votes
Accepted

How to continuously rotate a bivariate normal distribution by changing its correlation matrix?

5 votes
Accepted

Monte Carlo $\epsilon$ - greedy policy is better than $\epsilon$- soft policy

5 votes
Accepted

Covariance between Linear Combinations of random vectors

5 votes
Accepted

Jensen's inequality for two variables

5 votes

What does the integral of a function times a function of a random variable represent, conceptually?

5 votes

What does 'km' transform in cox.zph function mean?

5 votes
Accepted

Homework Help on Simple Markov Chain

5 votes

How to interpret $x \in \mathbb{R}^n$?

5 votes
Accepted

PDF given distribution function

4 votes
Accepted

Calculate maximum likelihood function for $\theta$ given data

4 votes

Prove or disprove $P(AB)≤P(A)P(B)$

4 votes

Maths Behind Dummy Variable in Linear Regression (One Hot Encoding)?

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