skysight-inc/HackerNews huggingface dataset:
Hmmm....so basically, you are saying that you prefer to keep two sets of books, one for the inner product and one for the outer product?

Its true that when you are, say, proving that two expressions are equal, e.g.:

a = b

you might have to "unpack" each of the components, and separately equate them, e.g.:

ax*x = bx*x and
ay*x = by*x so ax = bx and ay = by

etc etc, but frequently, there are a lot of intermediate steps before that, and I've always found it easier to reason about those steps at the higher level of combining the two products into a single product.

I guess I still don't understand why you think the rules are weird: its just polynomial multiplication, what's so weird about that? Yeah, the operations are not the same, but they are come from one operation, viz, multiplying two polynomials.

Sure ab = a.b + a^b is only true if a and b are vectors. But if they are general multi vectors, computing ab is still just a polynomial multiplication. And yeah, not every geometric multiplication can be expressed as (a.b) +(a^b), which is to say that we have not invented a shorthand operator for every possible subset of terms for every possible result of multiplying two polynomials together. Doesn't mean its not useful shorthand tho!

The real big payoff (as another commenter mentioned in another thread) is that the geometric product is invertable. Neither (a.b) or (a^b) is invertible by itself. But their sum is. The fact that geometric multiplication is invertible just makes it soooo much easier to use all your algebra skills when manipulating and deriving expressions.

......

Do you remember the first time you learned about vectors? I do....I had just spent 4 or 5 years learning that you can multiply and divide integers, and integers are just a subset of real numbers, which you can also multiply and divide. And then complex numbers, which are a superset of the real numbers, which you can multiply and divide.

So, naturally, I just assumed that you would be able to multiply and divide vectors, and add scalars to vectors, just like I added integers to real numbers.

But the teacher just said "you can't multiply or divide vectors, MmmKay?" No reason. No explanation. "you can't add vectors to scalars, MmmKay?"

YMMV, but I would have enjoyed the experience much more if I had known that you actually can multiply and divide vectors, and add them to scalars, etc. And that multi vectors are a superset of real and complex numbers, just like they are supersets of integers. The whole thing would have cohered a lot better than just an arbitrary "stop asking those kind of questions" did.

And learning geometric algebra in the 9th grade (which is possible, because you've already learned polynomial multiplication), and therefore, ipso facto, learned the exterior algebra, would have been endlessly useful for the rest of my life. Imagine learning real physics in high school.
> Consumers deserve to be able to choose tight integration over interop.

I want to be able to agree with you on this, but the reality of vendor-lock in means that it's a slippery slope towards having no choice.

This is proved time and time again: it's just more convenient for service providers (banks, shops, transport companies etc.) to support only the Apple platform. The EU's DMA doesn't address this aspect of interoperability; it doesn't say that shopkeepers or bus operators have to accept other payment methods, for instance.

Is it Apple's fault that their constrained but well-curated platform causes other people to neglect interoperability? Maybe not directly - but they have a massive financial incentive not to help fix the situation!
Location: San Francisco Bay Area

Remote: Yes, Hybrid or Onsite in Bay Area is fine

Willing to relocate: Yes

Technologies: Python, Java, Springboot, Rails, React, JS/TS, NLP

Résumé/CV: https://tinyurl.com/32xmm96y, https://www.linkedin.com/in/matthias-lee-dong-en/

Email: matteolee72@berkeley.edu

I am a Software Engineer from Singapore that is currently in the Bay Area. I am looking for a summer internship and am also open to work beyond the summer. Most of my experience is in web dev with a focus on backend. But I am more than willing to pick up new technologies quickly on the fly!

Though my years of experience may be limited and I may not be able to fill the role you are looking for entirely, I hope that does not deter your from reaching out as I make up for it with enthusiasm and hard work - I am someone that puts in a lot of effort into things that I care about! What I value most is being able to work alongside passionate engineers that are excited and invested in what they are building! If you are hiring I'd love to chat more about the possibility of contributing to your company, whether over coffee or a virtual call. Let me know what works best for you! Looking forward to connecting.
TIL about progressive JPEGs, will check it out, thanks!

We currently render the thumbnail first (in most cases it's available locally) and then replace it with the original image once fetched from remote, while replicating the zoom and pan operations (if any) performed by the user. So it is "progressive" in some sense, but goes from something like 20% to 100% in one shot.

("20%" is a simplification, the actual value will depend on the resolution of the original image and that of the generated thumbnail, the latter is fixed)
I’m getting on in years and am deeply disappointed I was never characterized as a rogue in public
I think these are very good points that make the case that LLMs have very real limitations and should only be used within well-defined scopes.
Morse operators don't need to think about things because the sequences are so short and there's a rythim that keeps letters distinct. Abstractly dot dot dot with even spacing could be EEE or S but not EI or IE. Listing to longer messages makes the pause pattern clear, and you can even learn who's sending the message based on how they encode it.

However, with SOS anyone can just dot dot dot, dash dash dash, dot dot dot longer pause on repeat and the message is clearly SOS not EEETTTEEE. That's why SOS was chosen it allows out of band communication of information. Even better triangulation adds location information allowing effectively anyone to say HELP I AM AT LAT X LONG Y.

For a slightly less trivial sequence like HAMBURGERANDACOKE you very much need 3 distinct types of pauses to make things understandable. Further you really need to try communicating to someone else not just congratulating yourself after doing something simpler than average Morse code.
Goodbye GUI … Hello NUI (1997)
Do you see a difference between burning a lake of petrol vs using it to power a billion car for a month?

It's not just about using energy, it's about what you do with it
There was enough science to avoid lockdowns. Face masks (not the surgical kinds though) work, but they needed to educate people to wear them consistently and that there's no point in wearing a mask and then taking it out to eat or drink water for 1 minute. They also changed it to "face covering," allowing people to wear germ-infested cloths and surgical masks.
> its just polynomial multiplication, what's so weird about that?

Well that's the point of the article. You can do it, but the point of GA is to make vector algebra and calculus easier, and the geometric product doesn't do it. So stop teaching it to people. It just makes the problem worse: "you CAN multiply vectors, but it's even more confusing, yet we're going to act like it's even less confusing". I agree that it was weird, back in the day, to not be able to multiply vectors... but I would say, yes, you can, it's called the tensor product. Out of all the operations: geometric product, tensor product, wedge product, dot product... the geometric product is the least useful and least intuitive. So stop telling people that it's fundamental and reframing other things in terms of it. Just nix it entirely and everything makes a lot more sense.

Re invertibility: Yes, the geometric product is invertible (in positive metrics), but what are you inverting? Inverting something that isn't meaningful just produces something else that isn't meaningful. The cases where it's useful is when the thing you're inverting is a specific operator, like a rotation, and in that case you may as well just invert that operator, not the geometric product in general.
The part that never made sense to me is that the exact same content on Wikipedia is proscribed, but if you put it somewhere else and someone else links to it, it somehow becomes OK. From where I'm sitting, the content is either fine or it's not.

A variant of this: you do the research, cite your findings with presumably reliable sources and post it somewhere like a personal blog. Wikipedia doesn't like directly linking to it [0], but if an editor writes the same content and cites the same sources, that's also OK, even though I'd argue that's plagiarism.

0: https://en.wikipedia.org/wiki/Wikipedia:Verifiability#Self-p...
Say I own a house, and want to rent it out. I'm naturally going to go onto rental search sites and look at what similar houses in the area are renting for, and probably ask something pretty close to that.

I would assume this is not illegal because it's using public information and not colluding with any competitors on price.

But subscribing to a service that uses an algorithm that does basically the same thing is (might be) illegal? Does it cross the line when I explicitly agree with competitors that we'll all use the same algorithm? Or if we're all just independently using the popular pricing service could that become illegal? Or if the service agreement requires me to not rent for less than their algorithm calculates?
> not the driving force behind the cost

Great. Socialize healthcare as the current non-single-payor market is forcing all sorts of market distortions in unrelated markets, AND fix the price fixing. Win win win.

ED: adding clarity for the call for socializing healthcare to dampen the massive price distortions in other markets.
I didn't need/have either but some people that had said it helped.
The effort of contributors can certainly be depleted when they see that no one cares to even submit a bug report or suggest any improvements
Everyone is chatting about the engineering aspects of this project which is to be expected, but putting aside that for a second since it’s been discussed to hell:

I really enjoy Molin’s music, when he does release some. He is well known for the marble machine but before that he had a band called Detektivbyrån - minimalist electronica that got famous performing on the streets of Göteborg. IMO his work around that is just as interesting as the marble machine - it really brought a breath of fresh innovation to street performing when Detektivbyrån’s album’s were released nearly two decades ago.
ComPromptMized: Zero-Click Worms Targeting GenAI Apps
I've lost count of the number of "epiphanies" he's had.
Looks interesting. I’m fascinated by e-ink and the oddball devices which use it. I wish I had the cash to collect them all (though I did get a Remarkable tablet the other day).

As far as I can see, there’s no mention of a backlight. An e-ink phone sounds great but if you can’t see the screen in the dark that’s a problem.
I don’t fully understand the argument. The article is rambling and touches so many topics in different ways such that I can’t really see a clear analogy or connection.

What I gathered was that the author believes signing commits to be bad because;

1. It adds complexity that you otherwise don’t need

2. GitHub is the only place that cares or enables this and we don’t want to add to their Git monopoly

3. Signing the commit does little in reality since it doesn’t affect anything other than “Verified” on GitHub

4. Something about signatures being permanent?

Honestly I don’t get the argument. It’s not useless, not hard to set up, and not hard to maintain. You can initially lock yourself out of committing if you mess it up but usually it won’t lock you out. The extra assurance that someone signed the commit with a key that only they should have is really good if you care about that. That means someone can’t just spoof your name (which is very easy with Git) and sneak changes in more easily.

Humans are still a key part of working around source control. That means there is trust involved, and code is pretty sensitive. Folks now are also more distributed and it’s harder to control where they access work systems from, or if that environment is secure (eg coffee shop over VPN does little if you leave your computer unlocked and get up to get a refill). Any extra assurance can be meaningful, specially if it’s around your code.

If you want something to take more concrete action you can enforce that a bot reject any work with unsigned commits present. Your CI can do that quite trivially even.

It’s not perfect but it’s also, IMO, the future. GitHub supports it now but others will in time (or do). Then GitHub will have trained people to get it working and you don’t need to learn it again.

Long article for not really saying much.
I feel like this isn’t the best place to litigate the price of tomatoes
bee_rider already touched on this in another comment, but the theorem makes sense if you consider a matrix with large diagonal values and small off-diagonal values (in magnitude). If I have a matrix with 1,000,000 on the diagonal and 1 everywhere else, I'd expect the eigenvalues to be 1,000,000 plus or minus some small error. The Gershgorin disk theorem proves this and puts an upper bound on the error.

The diagonal elements of matrices have a lot of rather "magical" properties if you think about it. Their sum is also the sum of the eigenvalues of the matrix. And if you have a matrix A that is singular, you can choose any value x that is not an eigenvalue, and then A - xI is invertible but still mostly behaves like A.
You have no idea how much it pleases people in charge to have complete surveillance. It's pathetic.
> Why doesn't an AI startup just disrupt the insurance industry?

More than this, it's a fundamental misunderstanding of what AI is and what it can do to ask this sort of question.

Best thing I've seen come on the market was Root, based in Columbus and founded by a former Finance director from Nationwide insurance. It used your cell phone to send telemetry signal to classify your driving behavior.
Using the moiré effect to show different arrows to each observer (2018)
I think "And then there were none" was solvable by the reader.
Symptomatically. Cases of influenza a where the person thinks they only have a minor head cold do exist and are a good fraction of all cases. Almost everyone gets influenza a every few years. It's just that many cases are asymptomatic or minor.

Reconstructing household transmission dynamics to estimate the infectiousness of asymptomatic influenza virus infections
https://www.pnas.org/doi/10.1073/pnas.2304750120
"Symptomatic cases account for 68% (95% CrI: 63%, 72%) of infected children and 59% (95% CrI: 53%, 64%) of infected adults."

Nearly half of adult influenza a infections are asymptomatic and go unreported and untested.
I assumed the original poster was talking about extant wars, not threats. This doesn’t even rate compared to say the Cuban missile crisis or even just the normal state of the world in the ‘80s.
Nah, there are some nice metrics to capture disparate impact between categories. Check out Microsoft's fairlearn library some time.
> Socialize healthcare as it is forcing all sorts of market distortions

I don't understand how you come to this conclusion. Can you explain?
I am really a proponent of the Chinese system. I’m a real estate investor and this “free market” isn’t going to last much longer since owning vacant homes will net you more than virtually anything else you could do legally. Real Estate is a free money machine, and it won’t stop until we adopt realistic government controlled system.
My family of 4 traveled internationally during COVID-19 and wore N95 and FFP3 face masks, didn't eat at the airplane, we only ate briefly at airports in secluded areas, and never got COVID-19. In fact, we only got COVID-19... at the pool, i.e., outside. My daughter was without a face mask and her friend, who was later tested positive, was 10-15 minutes away. We know for sure it was him infecting her outside in a larger than the standard "social distance", because she was home for 2-3 weeks and didn't see anybody else. Only she was positive and had symptoms.
> This is proved time and time again: it's just more convenient for service providers (banks, shops, transport companies etc.) to support only the Apple platform.

Is this really true, though? I'm in the US, where Apple is strongest, and I have never seen a payment terminal that accepted Apple Pay and didn't accept alternative NFC-based payment methods like Google Wallet. On the face of it I'd be shocked if any substantial number of payment terminal manufacturers decided that it was worth it to add the hardware to do NFC payments but not the software required to reach the ~40% of the USA that uses Android phones.

Nor have I ever seen a service that I was locked out of because they only provided an iOS app (no Android or web app).
Alternatively you could federate it. Maintain wikipedia as the primary instance but allow users to add secondary, wikipedia community vetted wiki instances to their account so that they can seamlessly flow between them.

Those instances can serve as "incubators" for not sufficiently notable pages and then if they reach notability they can be transferred from the local "small" wiki to "big" wikipedia without losing any of the internal page information (like discussions or old revisions) or local context (still linking back to the "small" wiki).

That way you could have the default unlogged-in wikipedia which shows only the officially vetted pages but then also provide a "wider wikipedia" that includes pages that are of sufficient quality but not quite there yet. And then your local "small wikipedia" pages that don't meet the requirements to move up into the wider network yet.

This would maintain coherency between the wikis for the users who care while also allowing the core wikipedia admins and mods to focus their energy on maintaining a tight selection of well established, notable articles. And then users could choose how wide their wikipedia experience is.
It's based on a whole lot of things. Drivers of Ford Mustangs may be involved in more accidents than drivers of Toyota Corollas. The number of miles you drive, and for what purpose, and your personal accident history, and your age and sex and marital status and whether you live in an area with snow and ice in the wintertime or not, all factor in to the rate you are charged.
I had no idea ShotSpotter was recording conversations, always assumed the nature of analyzing for a sound signature would be throwing much of the data away immediately
Elon’s existence kinda ruins that one.
> The cost is due to the increasing repair costs to other people vehicles, not mainly your own.

That doesn't sound right to me. That would mean only the liability component is increasing in cost, but aren't the percentages being applied across the board?
Funny that he’s only realising this now when he’s had comments telling him for years pretty much exactly this.
Have you looked at what’s happening to housing prices in resort towns lately?
I've experienced living in a neighborhood covered by shot spotter and hearing gun shots outside, and I think shot spotter is great. I want the cops to actually show up and arrest whoever is terrorizing everybody. Thank you very much
No, that's basically where I am as well -- GPT4 writes boilerplate and (most importantly) answers questions. It is not competitive with a CS education, nor is it trying to be. But it will eventually replace the people we currently think of as "programmers," which is what the vast majority of CS students end up doing for a living. Unless the IP courts, a nuclear attack, or some neo-Luddite terrorists stop it. :-P

GPT4 is certainly error-prone, but rapidly growing less so. Over the past couple of years, it has gone from a rubber-duck debugging partner to a capable (if over-imaginative) junior developer. What I'm starting to see now is that it is moving from "junior developer" to genuine guruhood.

Notice how it hallucinates exactly nothing in the session at https://chat.openai.com/share/345d0bca-7fc3-4b91-a1f1-95b1e8... , even when I was being a dumbass and arguing with it. It no longer falls over itself apologizing for its 'error', but stands its ground when it is correct.

The GP's comments happened to come at the same time I was engaging GPT4 in that session. I couldn't help but think that this is exactly what it was like to argue with an OG Luddite, or with someone who insisted that horses were never going to give way to automobiles or buses or trains or bikes or anything else.
Isn't Airbnb doing the same?
Depends on what you want from a (text)book. In my mind books should be authoritative, they should include things that have had some thought put into them and are fairly well studied/verified. Modern advances in deep learning/ML are exciting but are very often not this. I would not a read a book which is just some recent hype papers from NeurIPS/ICML stapled together.
If a large portion of the cost of auto insurance is to pay for potential injuries to someone that you hit, then we can conclude 1) single-payer healthcare would significantly lower the cost of auto insurance, and conversely, 2) the lack of single-payer healthcare is a significant contributor to the current state of auto insurance markets/pricing.
> I didn’t find the piloting to yield a particularly smooth video

Considering the context, I thought it as pretty impressive. I'm sure if it were for a feature film it could have been a bit better in aesthetic composition and framing but a movie would have had a lot of rehearsals, section-by-section planned coordination and also not have been shooting a full lap as one continuous shot. Given that this was a Red Bull marketing video vs a movie, I suspect they didn't have Max for very long (hence having to go ahead with the shoot despite the lousy weather). IIRC, there are even F1 rules strictly limiting the number of laps an F1 team driver can do in an F1 car outside of officially sanctioned practice sessions.

Interestingly, we'll soon get to see a feature film interpretation of F1 racing. A major movie starring Brad Pitt was shown shooting around the pits last F1 season and Brad Pitt was interviewed about it on one of the F1 pre-race shows. I expect we'll see some dramatic aerial shots when it comes out.

As a side note, these kind of drone shots are often done with a wide angle lens which gives some extra leeway for image stabilization and re-framing in post-production. I expect that was probably the case here because I don't think there was enough room in that bullet-shaped drone for a camera gimbal.
https://news.ycombinator.com/item?id=39572959
Companies and shareholders meetings work a bit differently than what you suggest.
Other than that, the grand majority of Tesla shareholders are quite happy with the financial state of the company and would like for Musk to continue leading the company and be compensated for it.
Ok, thanks, then I'm not missing something obvious, heh.

You make a good point of caching the XSLT file itself though, I hadn't considered that. Simple server outputs XML data, browser renders into a page.
LaVague: Text2Action AI pipeline to turn natural language into browser actions
This seems like spurious reasoning. It’s like saying “rockets are 1950s technology therefore SpaceX is going to fail”.

Commonwealth are using cutting-edge high-temp superconductors which can generate much stronger fields:

https://cfs.energy/

The idea is old, the tech is new.
I used to read joelonsoftware religiously back in 2000 and it’s pretty funny seeing this post again in 2024.