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Tesla Live Stream – Autonomy Day [video]

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Re: Tesla Live Stream – Autonomy Day [video]

#91
post #26

Earlier quoted context omitted.

Don't kid yourself, the car has no bandwidth storage or performance to send back anything other than a few raw frames from disengage events or other rare triggers.

Short video clips from all cameras are sent back to Tesla when associated with a disengagement event, queued for upload when the vehicle is on wifi.

I hope to god they are sending back short video clips randomly sampling all driving conditions, not just the disengagement events.

Re: Tesla Live Stream – Autonomy Day [video]

#92

Earlier quoted context omitted.

absolutely glorious, they're taking questions. first question: can you use anything else besides ReLU activations in your neural net engine? this is wonderful

what a funny question. "you say you can put bananas in your smoothie. just a thought, but perhaps, might I ask, do you have the capability to put strawberries as well, or are we not there yet?"

That was my first instinct to that question as well, but I think he was just asking if ReLU was required by the hardware design - or if it was possible to use other activation functions as well. If the the ReLU was part of the hardware itself somehow, then it wouldn't be possible to use tanh or sigmoid (which may be better in certain situations); so I think he was just asking if ReLU was required, or if there was flexibility allowed in the activation function.

Re: Tesla Live Stream – Autonomy Day [video]

#93
post #35

So far, half an hour from the head of IC design. Nice special purpose IC and board. Dual everything for redundancy. Wide special purpose neural net evaluation. 100 watts for the compute system. Code signing. Shipping in new Model 3 cars since last 10 days. "All we need to do is improve the software" - Musk [12:07 PDT] LIDAR "unnecessary" - Musk [12:13 PDT] Computer vision guy is now speaking. Recognizes "driveable sp…

This talk of a "cut-in" detector is scaring me. It's like they lack any sort of higher level planning and decision making (which notoriously is not a neural network of any sort).

Re: Tesla Live Stream – Autonomy Day [video]

#94

I really really don't want Tesla to die. I think it's an important company for a sustainable future. Failures in autonomous driving could easily turn into the straw that breaks the camels back. If you call something "autopilot" and promote it as if it will drive for you and then it ends up killing dozens of people ... that's where successful class actions come from. (I obviously don't want people to die either.)

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.…

> 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.

If you think this is a new thing, you haven't followed the car industry much.

Just as an example, my 2002 el cheapo Peugot was bought without the option to show instantaneous MPG/average MPG/range/etc. Spend two hours soldering/gluing on the missing $2 toggle switch, ask a friend with the Peugeot Planet update tool to enable it in software, and Bob's your auntie.

It goes much further than that though, especially when you get into chip tuning. Software upgrades that add 50 horsepower to your engine output are commonplace.

But as for the "actively hostile to 3rd party repairs/mods", this part scares me to.

Re: Tesla Live Stream – Autonomy Day [video]

#95

Interesting pieces: - First principles hardware design of focused self driving computer (many times better than any competing existing hardware). Already shipping in all newly produced cars. Currently working on next gen that will be 3x better to ship in a couple years. - Lidar is an unnecessary mistake that competitors are making that won't succeed (too expensive, need too many, unnecessary). - Real world fleet test…

This software talk is fascinating and a great introduction to neural nets.

Re: Tesla Live Stream – Autonomy Day [video]

#96

Earlier quoted context omitted.

"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

Can snow cover lidars?

Re: Tesla Live Stream – Autonomy Day [video]

#97

Earlier quoted context omitted.

"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

Doesn't LIDAR has similar problems with precipitation? Regardless of what solution proves to be the best, there is going to be a decent amount of time between when a self driving car can handle most scenarios and when it can handle all possible scenarios.

Re: Tesla Live Stream – Autonomy Day [video]

#98

The thing I don't get about Tesla is why they keep heaping more on their plate rather than just (for large values of just) re-doing the motive power bit. That alone is a massive challenge and it is not something they've licked at economies of scale that allow a $10K vehicle to be brought to market, which is what it will take to really make this a success. Every extra they tack on to the base product is one they will…

>but it is also something that will once cracked be an instant commodity

Definitely not and I'm not sure why you think this.

The data pipeline advantage is a big part of this talk.

Re: Tesla Live Stream – Autonomy Day [video]

#100

Earlier quoted context omitted.

"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

OK but snow blocks lidar too.
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