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My use case was autopilot steering me off the left hand side of the road at 80 MPH during a sunset [1] My (WAG) guess is that the ML corpus was based on a mode
by musesum 4y ago
My use case was autopilot steering me off the left hand side of the road at 80 MPH during a sunset [1] My (WAG) guess is that the ML corpus was based on a model 3, while the model Y, I was driving, had placed the sensors slightly higher? I dunno; again, tis a WAG.
I am a huge fan of Tesla's permise. My Dad sold Vanguard Citicars [2], and I worked on GM's interactive ad for the EV-1. I put a down payment on Aptera's original EV and again on the resurrected version [3].
But, I backed out of buying a Tesla. Even though I disabled Autopilot and ran purely cruise control, the Model Y would brake for phantom obstacles. Such as: low rises in the road. Or: passing a 18-wheeler on the left. Driving from AZ to CA, the phantom braking was occuring every 5 miles or so. So, I had to drive 800 miles with a manual accelerator. Bummer!
[1] https://news.ycombinator.com/item?id=31504583 https://news.ycombinator.com/item?id=31504583
[2] https://en.wikipedia.org/wiki/Citicar https://en.wikipedia.org/wiki/Citicar
[3] https://aptera.us https://aptera.us [edit]
- chrisseaton 4y ago> My (WAG) guess Wives-and-girlfriends?
- matheist 4y agoWild-ass guess
- chrisseaton 4y agoWild-ass guess guess?
- fragmede 4y agoYes, like when people say PIN number or ATM machine. Or HIV virus or LCD display. https://en.wikipedia.org/wiki/RAS_syndrome https://en.wikipedia.org/wiki/RAS_syndrome
- seanhunter 4y agoOr, as recently, PUBG Battlegrounds, which reuses 2 letters from the ititialism.
- kzrdude 4y agoAre there iterated versions of that?
- willismichael 4y agoJWT token
- tsimionescu 4y agoThis is not a good example - JWT is the name of a format, not of the token stored in that format. JWT token just means "token in JWT format". Saying "a JWT" is in fact more dubious, like saying "an SQL" instead of "an SQL string".
- Someone 4y agohttps://datatracker.ietf.org/doc/html/rfc7519 https://datatracker.ietf.org/doc/html/rfc7519 disagrees: Abstract JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JSON object that is used as the payload of a JSON Web Signature (JWS) structure or as the plaintext of a JSON Web Encryption (JWE) structure, enabling the claims to be digitally signed or integrity protected with a Message Authentication Code (MAC) and/or encrypted.
- tsimionescu 4y agoEven the quoted fragment is a bit debatable - while the standard does commonly use "JWT" to mean a particular token, the very first sentence is only grammatical if we take JWT to be the name of the standard/format. Otherwise, it's missing an article - it should have been "*A* JSON Web Token (JWT) is [...]" if it were consistently used to refer to individual tokens, not the collective format.
- LeoPanthera 4y agoAutopilot cannot be enabled until the position of the cameras is calibrated. That's why it requires you drive on well-marked roads for several miles when you first receive your car, before it works.
- dathinab 4y agoThrough that is not how neural nets work. It's anything but trivial to make a neural net properly abstract over some "camera position parameter". More over it's nearly impossible to be sure it did properly abstract in all cases. I.e. it might have abstracting in every case but some arbitrary edge case which for a human looks no special at all but for some arbitrary reason is for the NN. Anyway this is highly speculative and might very well be unrelated to the given Teslas behaviour.
- nraynaud 4y agoI’m pretty sure some things get normal algorithms, that not everything is a giant neural net.
- musesum 4y agoHard to know without being on the team, hence my WAG modifier to the guess. My reasoning is that the Model Y is built on the same chassis as the Model 3. So, a quick and dirty solution is to use the same training set results. But, it most likely is something else. This is a roundabout way of saying that maybe - just maybe - the problem is only for the model Y. Am rooting for Tesla to fix it. Maybe a Tesla engineer looks at hacker news? Already filed a complaint with the Tesla Sales Manager. Or perhaps the log of my screaming in terror did the trick. Is prosody for QA sentiment a thing?
- md2020 4y agoI don’t think they segregate their training data based on car models. I mentioned in an above comment, but Comma.ai doesn’t do this and their devices support tons of cars. It would be very odd if a company far smaller than Tesla was able to figure out how to account for different camera positions and Tesla wasn’t. I bought a 2022 model year car and plugged the Comma device in and it just worked, and they would have had pretty much no training data from my car at that point. Just my speculation though.
- buffington 4y agoWhen my dad was teaching me how to drive, he told me that cruise control is only for when you have at least a hundred feet between you and the next car, and that you fully turn it off to pass other cars. I treat Autopilot the same way when I use it. I treat it as cruise control, if I use it at all.
- musesum 4y agoProblem is that, with no cars around for hundreds of feet, with dozens of seconds of reaction time, when you hit a low rise on the AZ Interstate, the Tesla Y will abruptly brake. This is with Autopilot OR with simple cruise control. Pretty stressful. Bonus impact on range prediction. So, I couldn't use either.
- simondotau 4y agoI know this is a controversial take, but I'll say it anyway: anyone who doesn't feel safe driving with cruise control is a dangerous driver. Cruise control is a tool. So long as you understand how it works, and that it doesn't paralyse your right leg, you really can use it in any driving context. It is an alternative input mechanism to the accelerator pedal, nothing more.
- deleted 4y ago[deleted]
- usednet 4y agoAgreed. Modern cars with adaptive cruise control and lane keep assist are a breeze to drive if you maintain awareness of your surroundings and practice confident defensive driving.
- eisa01 4y agoNo, it is useless on VAG cars in Norway. You can’t drive at the speed limit at 110 and suddenly have the car slow down to 80 because of “reasons”. That increases the risk of being rear-ended for no reason, even though the car behind you is supposed to be attentive Granted, you seem to be able to disable it in the menus, but if you rent/use car sharing services, this may not be obvious to you
- pmorici 4y agoHow long ago was that, Autopilot has been improving rapidly and since they stopped using radar I haven’t experienced and phantom breaking.
- csa 4y ago> the Model Y would brake for phantom obstacles. Such as: low rises in the road. Or: passing a 18-wheeler on the left. Fwiw, I had similar phantom breaking experiences with my model y. One of the recent updates fixed it such that phantom braking rarely happens (maybe once per 1000 miles driven or less now versus almost every time I passed an 18-wheeler on a two-lane highway before).
- musesum 4y agoYay; progress! My experience was from last year. Will stop whining, now.