Cross entropy, joint entropy, conditional entropy and relative entropy

Marton Trencseni - Sat 09 October 2021 • Tagged with entropy, cross-entropy, joint-entropy, conditional-entropy, relative-entropy, kullback–leibler-diverence

What's the difference between cross entropy, joint entropy, conditional entropy and relative entropy?

Information gain

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What's the entropy of a fair coin toss?

Marton Trencseni - Sat 25 September 2021 • Tagged with entropy, interviews, cross-entropy, physics

What's the entropy of a fair coin toss? What if the coin almost always returns Heads? My recruiter reports that very few candidates can answer these entropy related DS screening questions.

Entropy

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