161–170 of 550 posts
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"LIDAR is a fool's errand. Everyone relying on LIDAR is doomed." edit: beat me to it
it snowed a few weekends ago in Chicago, my autopilot turned off because snow covered up the cameras. So I am not buying all this "self driving with no lidar" brouhaha
Karpathy's presentation is really good. Watch it later if you get some time. The key points are - Telsa is using fleet for learning (Fleet learning). This has 3 components, a. Trigger infrasture that collects the kind of data telsa is looking for training. The rational here is we don't need massive amounts of same kind of data but needs right kind of data for training neural networks correctly. b. Data Engine which l…
This is really important. At a certain point additional miles on similar roads in nice conditions with fair traffic won’t help anymore. The data variety is really important.
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I wonder if he's going to explain this position at all? Or if it's just posturing against Waymo et al. Seems like more data is always better than less data for this application?
They explain it in the software talk. In short, I think his thesis is: Lidar is expensive, and gives surprisingly limited data (just points of depth) and is like a crutch that will only get so far. It will not get you to full autonomy so why not spend the time and money on vision which will (as proven by humans). They also do use radar and ultrasonics (not visual spectrum). At some point your machine must be good eno…
Once Tesla can actually handle those two extremely basic tasks maybe they can start talking about how vision is better than LIDAR. Until then, it's just more hot air, and that's not even taking into account Tesla's claims of using ML to predict the actions of uncontrolled independent agents in the field of view.
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And I don't want them to succeed because they are actively hostile towards 3rd party repairs and car modifications, plus their current model 3 microtransaction bullshit scares me as a customer, I'm dreading the moment other companies catch on with that. I'm specifically talking about the fact that the base model 3 ships with heated seats out of the factory but you can pay to have them unlocked with a software update.…
Personally speaking I would not want to share a road with an autonomous car that had been tinkered on by some random Joe. Autonomous farm vehicles or something, sure, but public roads are way too risky. This is not the desktop environment of your Linux laptop, it’s monstrously complex software controlling thousands of pounds of metal and batteries.
I'm sorry but I'm finding it really difficult to watch this and match up what the engineer is saying to what Elon Musk is saying. For example, the engineer says the custom ASIC does 144 TOps for 2 chips vs the NVidia drive Xavier - does 21 TOps. Okay, well yeah I expect your custom ASIC does have a nice performance advantage over the equivalent GPU. at 3.5x advantage probably seems reasonable. Cue Elon Musk: "At firs…
> For example, the engineer says the custom ASIC does 144 TOps for 2 chips vs the NVidia drive Xavier - does 21 TOps. Okay, well yeah I expect your custom ASIC does have a nice performance advantage over the equivalent GPU. at 3.5x advantage probably seems reasonable. Cue Elon Musk: Here's my issue with that. The on-chip SRAM is only 32MB, and the RAM is LPDDR4 rated at only 68GB/s. Assuming a dot-product (multiply +…
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how can you claim that? more than waymo? that would be extremely doubtful. google has been driving around cars with sensors and cameras for over a decade.
They have a fleet of hundreds of thousands of cars driving real-world miles all over the developed world.
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Personally speaking I would not want to share a road with an autonomous car that had been tinkered on by some random Joe. Autonomous farm vehicles or something, sure, but public roads are way too risky. This is not the desktop environment of your Linux laptop, it’s monstrously complex software controlling thousands of pounds of metal and batteries.
I would expect autonomous cars to be have doubled down security against tinkering although I personally don't like that. The reason is purely public safety. If someone could re-program autonomous cars to slam into public crowds and places, imagine the havoc it can cause. A malicious actors can just walk in to parking garage, put in some wires and reprogram every vehicle they can get their hands on - imagine those sce…
Uber and Lyft are fucked.