In a first, an artificial intelligence named Libratus has bested top-tier players at no-limit Texas Hold 'em. This is especially notable because imperfect information games are notoriously challenging to program.
Tuomas Sandholm at Carnegie Mellon led the team. Via Wired:
Libratus, for one, did not use neural networks. Mainly, it relied on a form of AI known as reinforcement learning, a method of extreme trial-and-error. In essence, it played game after game against itself. Google’s DeepMind lab used reinforcement learning in building AlphaGo, the system that that cracked the ancient game of Go ten years ahead of schedule, but there’s a key difference between the two systems. AlphaGo learned the game by analyzing 30 million Go moves from human players, before refining its skills by playing against itself. By contrast, Libratus learned from scratch.
Through an algorithm called counterfactual regret minimization, it began by playing at random, and eventually, after several months of training and trillions of hands of poker, it too reached a level where it could not just challenge the best humans but play in ways they couldn’t—playing a much wider range of bets and randomizing these bets, so that rivals have more trouble guessing what cards it holds.
• Tough poker player: Brains Vs. AI update (YouTube / Carnegie Mellon)
Image: Playing Poker
Aedan’s EP Microclimat includes the single “Evolution,” the video for which is a breathtaking series of extreme closeups of colorful insects and plants. Via the band: This new clip by Aedan takes us into the world of the infinitely small and highlights another vision of evolution. Directed by Thomas Blanchard, who had already directed Aedan’s […]
Vacuum cleaner filters are a good material to use in homemade masks, according to a study published in the Journal of Hospital Infection. Masks made from tea towels, cotton-blend fabrics, and antimicrobial pillowcases are also good. Scarves and T-shirts are not so good. From Science Daily: When the researchers compared wearing masks to wearing no protection […]
After a year of enduring the unfortunate sight of a Melania Trump statue — a crude eyesore thought of by locals as a “disgrace” and likened to a “Smurfette”, Melania’s hometown of Sevnica, Slovenia, can finally breathe a sigh of relief. The wooden statue, carved with a chainsaw by artist Brad Downey, was set on […]
Unless you’re a regular cannabis user, you might be surprised to learn that the plant itself is basically just that — a plant. It’s not until you put cannabis under high heat that the process of decarboxylation breaks down that raw form into the psychoactive compounds that can actually benefit the body. This unlocking process […]
With our smartphones serving as the vital tether that links us to the rest of our lives, it’s no wonder how low batteries and power emergencies can occasionally feel like a life-and-death situation. I mean, it’s usually not, of course…but darned if it doesn’t feel that way when your indicator is showing only 5 percent […]
Despite all of our most fervent hopes, it doesn’t appear the specter of COVID-19 will be leaving us anytime soon. If anything, the past few weeks seems to indicate the need for social distancing and other preventative measures will likely continue indefinitely from coast to coast for a very, very, very long time. Of course, […]