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Mapping technique: use H3 hexagonal binning to make dense point data intelligible at low zooms. Shown here: the new H3 integration in the freestiler vector tiling tool in action. 146 million jobs are binned by hierarchical hexagons, then mapped by the most common job category. Hexagons give way to...

10,663 görüntüleme • 24 gün önce •via X (Twitter)

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Exciting updates on Project GR00T! We discover a systematic way to scale up robot data, tackling the most painful pain point in robotics. The idea is simple: human collects demonstration on a real robot, and we multiply that data 1000x or more in simulation. Let’s break it down: 1. We use Apple Vision Pro (yes!!) to give the human operator first person control of the humanoid. Vision Pro parses human hand pose and retargets the motion to the robot hand, all in real time. From the human’s point of view, they are immersed in another body like the Avatar. Teleoperation is slow and time-consuming, but we can afford to collect a small amount of data. 2. We use RoboCasa, a generative simulation framework, to multiply the demonstration data by varying the visual appearance and layout of the environment. In Jensen’s keynote video below, the humanoid is now placing the cup in hundreds of kitchens with a huge diversity of textures, furniture, and object placement. We only have 1 physical kitchen at the GEAR Lab in NVIDIA HQ, but we can conjure up infinite ones in simulation. 3. Finally, we apply MimicGen, a technique to multiply the above data even more by varying the *motion* of the robot. MimicGen generates vast number of new action trajectories based on the original human data, and filters out failed ones (e.g. those that drop the cup) to form a much larger dataset. To sum up, given 1 human trajectory with Vision Pro -> RoboCasa produces N (varying visuals) -> MimicGen further augments to NxM (varying motions). This is the way to trade compute for expensive human data by GPU-accelerated simulation. A while ago, I mentioned that teleoperation is fundamentally not scalable, because we are always limited by 24 hrs/robot/day in the world of atoms. Our new GR00T synthetic data pipeline breaks this barrier in the world of bits. Scaling has been so much fun for LLMs, and it's finally our turn to have fun in robotics! We are building tools to enable everyone in the ecosystem to scale up with us. Links in thread:

Jim Fan

364,380 görüntüleme • 1 yıl önce

Just in case you forgot: Trump wants to give every F1 Visa holding Foreign Student who graduates from an American college (even jr. college) a Green Card. Not a temp work visa - he wants to give them permanent residency which also means the ability to apply for citizenship. Facts: There are about 11 million 'Degreed Stem' Jobs in the U.S. Between foreign born citizens and foreign work visa holders, about 7.5 million of those jobs are already held by foreigners. There are about 4.2 million native born Americans working in these degreed STEM jobs today. We are already a minority in degreed STEM jobs. There are 12 million American citizens with STEM degrees not working in STEM. How many degreed STEM jobs does Trump think there are? Fyi, you'll often hear numbers for STEM jobs in the 30-35 million range. But that includes nurses, electricians, electronics technicans and many important but lower level jobs. When it comes engineers and scientists. there are only about 11 million jobs available. Why does Trump believe we can just flood in and endless supply of foreigners into the STEM workforce? With 1.2 million F1 visa holders here, the numbers just don't work. Note that he's speaking with the Tech Bros on this podcast. They fill his head with endless lies about shortages and skills gaps. But he never seems to ask: How did we build the entire tech world here in the U.S from the '50s through to the late '90s with mostly American engineers and scientists? There was never a shortage. Rather, what we did is crowd Americans out of universities and entry level jobs. Now the labor market for these jobs is filled with the foreign born. It makes me sick to my stomach listening to him prattle on like this.

War for the West

68,342 görüntüleme • 5 ay önce