SelfDestructive

Back in the 90s, Lanre Fehintola was a talented photojournalist who got hooked on heroin and crack while photographing addicts in Bradford. He started dealing, served time in prison, but never gave up on photography. “It saved my life,” he says in this raw, affectionate documentary directed by his friend Leo Regan from more than 25 years of footage. It’s Regan’s third film about Fehintola – and it’s easy to see what keeps him coming back. As a young man, Fehintola had such life force, such energy; a personality of…

Innocent changes to RL reward functions produce surprising behaviorsImage by Stefan Keller from Pixabay.Problem SettingReinforcement Learning is a popular branch of AI/ML that tries to learn optimal behavior by interacting with the world and maximizing a reward signal. For example, when playing games the agent will make a decision on how to interact with the world, and the environment game will reward accordingly.Atari Breakout. Here the agent’s reward signal is the score of the game. Environment from OpenAI…