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Tesla AI Day [video]

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Re: Tesla AI Day [video]

#151

No one here talking about the freaking humanoid bot?!? Also interesting to see how focused they are still on pure vision input to construct the vector space instead of just using LIDAR, but I wonder how limited they are by existing models already being out there with set hardware.

What's to comment on? It's a piece of plastic with nothing inside it. You really think they'll have a humanoid robot by next year? Just look at Elon's face, he literally made up the timeline on the spot.

Re: Tesla AI Day [video]

#152

Earlier quoted context omitted.

You think they are fake collecting data? I suppose they wrote code to create fake uploads from peoples cars. How deep is this conspiracy going. How does the FSD Beta work? Do they buy data from somewhere else? Or are all the people who have the FSD Beta paid by Tesla to create fake content. True conspiracy theory you have unraveled here.

> You think they are fake collecting data? I suppose they wrote code to create fake uploads from peoples cars. How deep is this conspiracy going. The conspiracy "keeps going" by the simple math of what they claim to collect vs what actually comes off of the cars and is stored. Do you have any idea the bandwidth and storage associated with endless hours of video storage? Where is it all accounted for? Do you think peo…

There are more the 1 million Tesla on the road. And they say they are using 1.5 million clips for the training. How is that even remotely unreasonable? And they are not uploading hours of video at the time.

They literally explained in detail how they are sourcing videos, I'm sorry if you didn't pay attention or don't understand it. I have heard a lot of criticism of Tesla from experts, but not a single one questioned the video clip sourcing.

I'm sorry but your claim of conspiracy has no credibility.

> through cell towers and it's completely unmeasurable

Do you have the measure of all Tesla data that went threw cell towers and can prove that they didn't upload a few million clips? Because I am 100% sure you don't have that data.

> Let me guess, you're one of these layman who thinks the "neural net" is being trained every time the car disengages?

I don't need to guess that you are dickhead.

Re: Tesla AI Day [video]

#153

Earlier quoted context omitted.

Adding more rotating parts is exactly what you are trying to avoid. For example, go look at how Tesla designed the heating and cooling system. The integrated all the different streams of hot and cold in one system duplicate these parts that can break easily. In some cases it can simply not be avoided of course but you better make sure that you really need it if you are gone add it to millions of cars. > cruise and wa…

You didn't really address the meat of the comment: The adage "do things that don't scale" comes to mind. If your options are "have tens of thousands of autonomous vehicles" or "have none", I'm not sure how the second is better. Waymo and cruise especially, but even a number of others, have demonstrated better autonomy than Tesla. Musk has been claiming full self driving is 6 months away for 5 years now, and he hasn't…

> Waymo and cruise especially, but even a number of others, have demonstrated better autonomy than Tesla.

Have they? They have a different approach where they focus huge effort on individual Geo-fenced locations and they both are losing 100M of $ every year. Neither has given any timeline for general availability in all locations.

The race, as far as I am concerned is still open. It is not at all clear to me that Waymo is ahead at what actually matters.

> Musk has been claiming full self driving is 6 months away for 5 years now, and he hasn't gotten that much closer.

The claim they made no progress is objectively false.

Re: Tesla AI Day [video]

#154

Earlier quoted context omitted.

I didn't specify the training set, just the test set. It's possible that your model actually models an arithmetic series. Or that it simply overfits. The point is that it doesn't require trillions of parameters to overfit to a trillion-sized test set.

What you need are more parameters than the complexity of the underlying distribution. If you drop to a linear function you're modelling, you only need a couple of parameters. "Overfitting" is memorizing the training data instead of generalizing. The example you're providing isn't overfitting, it's just generalizing to the wrong function. Overfitting would be if the validation set was, say, 30 random values that you g…

Overfitting is, by definition, learning a model that doesn't generalize to the distribution of inputs you care about. If your validation set has the same distribution as the inputs you care about, then your definition holds. But that's definitely not true in practice. Usually the data you collect won't be exactly representative of the conditions you're looking to test, unless your problem is very simple.

Re: Tesla AI Day [video]

#155

Earlier quoted context omitted.

I didn't specify that the training set wasn't representative. All this shows is that you don't need parameters anywhere close to the number of test examples to overfit.

And my point is that is not what overfit is. Overfit is a specific problem where the network fails to recognize a commonality in the training set and instead interprets the irrelevant details of some subset of training samples (in the extreme, individual samples) as distinct properties. Your example training set is not filled with noise that the network is picking up on to its detriment. Your example training set is…

I don't have an example training set. I don't have an example model.

My exact point is that if your test set isn't representative of the underlying distribution, then accuracy on the test set doesn't mean that your model isn't overfit.

Re: Tesla AI Day [video]

#156

Earlier quoted context omitted.

> We are being asked to close our eyes, take a leap of faith Actually, you're being asked to "Always watch the road in front of you and be prepared to take corrective action at all times. Failure to do so can result in serious injury or death.", until FSD gets released :) Do you trust cab drivers to "be trained on every edge case under the sun"? Self driving only needs to beat humans, who have some serious flaws, not…

> Self driving only needs to beat humans, who have some serious flaws, not achieve perfection. In particular, though, it needs to beat good human drivers, not average ones.

I would argue the average human driver is actually a good driver. People argue that Tesla training their system to mimic a human driver is a bad idea because then it will replicate bad human driver behavior, but the fact is that human drivers don’t end up killing themselves or others the vast, vast majority of the time. George Hotz of Comma.ai brought up an interesting point about this on one of his Lex Fridman podcast appearances. He said from the driving data they’ve gathered, it seems that average drivers are good in the same ways, while especially bad drivers are bad in unique ways. The result is that the bad driver behavior in the data is pretty much overwhelmed and washed out by the abundance of good driver behavior in the data. Add to this the fact that self-driving systems still have things like automatic emergency braking, and I’d say you’ve got a pretty safe driver.

Re: Tesla AI Day [video]

#157

Earlier quoted context omitted.

> And it would be great if it something that almost never broke as things that move a lot tend to. As far as I know static lidar are nowhere near as good. Keep in mind you're saying this about something that attaches to a car, which already has dozens or hundreds of parts that rotate at hundreds or thousands of RPM. > Then if the difference in quality is not actually that great, doing the development effort once will…

Adding more rotating parts is exactly what you are trying to avoid. For example, go look at how Tesla designed the heating and cooling system. The integrated all the different streams of hot and cold in one system duplicate these parts that can break easily. In some cases it can simply not be avoided of course but you better make sure that you really need it if you are gone add it to millions of cars. > cruise and wa…

> Margins in car industry are incredibly tight, car companies invest gigantic amount of capital to remove a few $ per car. These vehicles need to be able to be produced at a run rate of millions per year. If you are proposing to add something that cost 100-1000$ that is a absolute killer.

I don't get this. You have to pay ~8000$ as an extra to get the FDA in a Tesla. Can't they charge the cost of the lidar in there? Now you have to pay 9000 dollars to get it.

Re: Tesla AI Day [video]

#158

I like Andrej and I think he's a brilliant guy. At the end of the day though, there is no way for me or anyone to audit the neural networks or their training data. How can anyone trust them? I think this is really a fundamental problem with using neural networks in self-driving cars--I don't want to put my life in the hands of a fragile system that I, and no one alive, can understand. We are being asked to close our…

> We are being asked to close our eyes, take a leap of faith Actually, you're being asked to "Always watch the road in front of you and be prepared to take corrective action at all times. Failure to do so can result in serious injury or death.", until FSD gets released :) Do you trust cab drivers to "be trained on every edge case under the sun"? Self driving only needs to beat humans, who have some serious flaws, not…

If all airplanes needed to do is "be safer than cars" then no one would ever fly.

Re: Tesla AI Day [video]

#159
post #116

Earlier quoted context omitted.

Animals do just fine with more complex navigation challenges than driving a car. While we can 'mimic' various animal capabilities, I don't believe we are anywhere close to AGI with either a dog's level of intelligence, motor control or sensory integration.

> Animals do just fine with more complex navigation challenges than driving a car. Do you have any scenarios in mind? Driving is not only a navigation challenge, but a social challenge as well. Have you ever tried to navigate a 4 way stop when multiple cars get there at the same time?

Have you imagined building a birds nest using a helicopter or similar flying machine? Seems to me trickier than driving a car.

Re: Tesla AI Day [video]

#160

Earlier quoted context omitted.

Can you point me to literally any evidence what so ever that the results fake? Is the FSD Beta regularly crashing into things it put at the wrong range? Tesla has cars with Lidar on the road to check the models as well. And who says anything about entitled, they have spent a huge amount of effort and therefore money into a solution that they think will be better. Nobody with Lidar has delivered either so what is bett…

> Is the FSD Beta regularly crashing into things it put at the wrong range? As a matter of fact, yes: self-driving Teslas have been crashing into emergency vehicles so often, they are being investigated[1] 1. https://news.ycombinator.com/item?id=28197355

I don't think that's a range thing though. It's confusing the vehicles with things like road signs or puddles that you can drive over/past.
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