Biting your own teeth

I always get confused between necessary and sufficient conditions. So here’s a small picture to remind myself: [Read More]

What are functions? [Read More]

Cross-Entropy can be thought of as a measure of how much one distribution differs from a 2nd distribution, which is the ground truth. It is one of the two terms in the KL-Divergence, which is also a sort-of measure of (non-symmetric) distance between two distribution, the other term being the... [Read More]

I recently completed a Coursera specialization in Reinforcement Learning (RL) [which I highly recommend]. The idea behind it, in a nutshell, is to model an environment and an agent that interacts with each other. The agents processes the current state it is in, and, based on its learning model, chooses... [Read More]

For a long time I knew that the Hebrew word for a miracle -נס - (Nes) also meant a flag. But I always thought it was just different meanings that somehow got into the same word. I never thought that the meanings were similar, until now. [Read More]