Articles tagged with machine-learning-theory | Vitor Sousa

Vitor Sousa

Articles tagged machine-learning-theory

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Reinforcement Learning Foundations for LLM Alignment Part 1 Master the RL fundamentals powering modern LLM training: from MDPs and policy gradients through value functions and actor-critic methods. The mathematical foundations you need before diving into PPO, GRPO, and beyond. ~35 min
Contextual Bandit Theory: Regret Bounds and Exploration Part 2 Understand the theory behind contextual bandits: regret bounds, the exploration-exploitation tradeoff, reward models, and why certain algorithms work. Math that directly informs practice. ~18 min