Data Science Interview Question #2
Categories: Data Science, Interview Questions, Mathematics,
The second entry in the DS interview question series comes from ryxcommar. Let's put pen to paper (i.e. keyboard to LaTeX) and solve it!
Mathematics
Cosine Similarity: Not for Probabilities
Tags: lda, probability, topic modeling
Categories: Data Science, Mathematics,
The cosine similarity is a useful distance measure for comparing NLP document vectors, but should not be used with probability distributions.
Video Poker in New York State: Beware!
Tags: casinos, gambling, new york
Categories: Mathematics,
Video poker machines at many New York casinos are Class II machines - meaning the outcome is determined completely by chance! Stick with Class III machines.
“Optimal” Wagers on Penny Slots
Tags: gambling, modeling, simulations
Categories: Mathematics, Modeling,
My girlfriend and I like to go to the casino to play the slots! This got me curious about the best wagers to place on different types of games.
Devaney’s Definition Of Chaos
Tags: dynamical systems
Categories: Mathematics,
We explore the definition of chaos in the context of discrete dynamical systems, with a mix of formal math and informal observations.