skysight-inc/HackerNews huggingface dataset:
> The fundamental problem with general log monitoring is that logs are functionally unstructured.

JSON format logs?

One pattern I’ve used before - in a Java app with an RDBMS, create an error table, and every unexpected Java exception gets logged to that table. Then have a system to match problems in that table to known errors, or flag new ones for analysis. (I just clone the table from the production DB into a non-production DB, then have a bunch of views I wrote to analyse them - the fact it is cloned to the non-production DB means I don’t need release management approval to update the definitions of my views.)

At a certain scale this may lead to problems with performance or data volumes, but generally not if the app is small to medium scale (as in practice many apps are), and especially if exceptions are sufficiently infrequent (one hopes so!)
There are measurement configurations that can be used to eliminate contact resistance (such as a van der Pauw measurement). Resistance, and electrical measurement in general, is the true proof - the Meissner effect is secondary and more confusing as, since this paper shows, a small ferromagnetic phase can give rise to the same effects.
All the bugs? I doubt that.

Many of the worst bugs (data loss and corruption)? Probably.

Having something like the Rust borrow checker around to make sure you don't make dumb mistakes is handy, to be sure. But, let's not oversell it as some kind of panacea. I bet I could write a FS in Rust with all kinds of bugs, and the borrow checker wouldn't be able to stop me.
Next: lithobraking?
She absolutely does seem to come out of nowhere as she is crossing in the shadow of a bridge. But I do recall a previous incident where someone had gone to the site of a similar night time accident and showed how visibility was MUCH better than the car camera suggested - car camera seemed very darkened. I wonder was it similar here?

EDIT: May actually have been this very accident - I can't find the link though
> you came with presumption that this man knows & understands the subject matter. that is a very bold assumption given the mounting evidence against such brief.

Not OP but "this man" has published enough papers on superconductors[0] that yes, he absolutely deserves the benefit of the doubt.

[0]: See e.g. https://scholar.google.com/scholar?hl=de&as_sdt=0%2C5&q=hyun... or https://scholar.google.com/citations?user=_P8mux4AAAAJ&hl=de...
Glad to know I'm not the only one! I keep wondering if I'm misunderstanding something in git since I couldn't find something like the timelapse view.

I've even considered trying to code something similar to ease the pain!
SEO is basically snake oil. You try some things that someone in that dark corner over there tells you to do and have no idea if the black box called Google will rank you higher or not. Results are not instantly or even actually measureable. And in the end you spend cash and have no idea if it helped or not.

Basically, like someone else in this thread already said, SEO is best if you are not doing it actively, but when you are creating stuff that really benefits users, readers, etc…
An RC airplane, built out of an old arrow I found in a field, some foam boards cut for the wings using the Kline-Fogelmann wing form [1], and various sundry electronics rescued from the parts bin, including a DVD motor to power the prop.

The feeling of elation I felt when I first chucked it into the sky and off it flew .. can't be explained. I've been making planes for 30 years, but this was my first KFM airfoil, and it was just so neat to see it fly around.

[1] - https://en.wikipedia.org/wiki/Kline–Fogleman_airfoil
Having seen the video I struggle to think if I could have stopped in time. The pedestrian was practically invisible and ironically is trust a car with LIDAR better to stop in time.

Question, does anyone know why the lights seem so dim?
Expecting it to be a cesspool is nihilism. Not having any ambition for it to be more than that is nihilism.
Someone also applied the idea to an upright piano: https://www.worldpianonews.com/new-product/acoustic/worlds-l...
Conversely, I'm not familiar with Rust, and Rust looks pretty illegible to me. Probably we need more experience with these languages before we judge.
Ask HN
I was wondering if anyone might be aware of a continual learning (CL) method that works for "regression" problems (it appears that most current CL methods are only suited to classification tasks). If someone could point me to specific code (Python or R) that I could apply to real data, I would greatly appreciate it!
He is currently working on RISC-V chip:

https://wccftech.com/jim-keller-tenstorrent-wants-to-compete...
Introducing Code Referencing for GitHub Copilot
Location: India

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Technologies: Product Management, Growth Marketing

Résumé/CV: https://docs.google.com/document/d/151Mv6MtbXclnq3lKQb_goMUF...

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Open to full-time, part-time & contract opportunities. Please reach out to rishabh@roasexpert.com
The thing is, not all web development agency's are going to be, good at "SEO" and have it as part of their door service, trying the services of another agency is probably a good idea.

The $62k is an investment in learning how not to do it. They are clearly a very capable agency, and now have some experience they can help advise their customers based on.

So there is the cynical side that says "this post is just SEO", but good SEO isn't "SEO", it's creating good content that users find useful and gain backlinks organically. That's what this post is.

Personally I believe almost anyone that is selling only SEO services are probably using bad tricks and are a very pore investment. SEO is only a tiny fragment of good online marketing, you need a congestive strategy and that will involve many parts of your business. You can't get outsiders to write good marketing content.
That is exactly what a bot would say... you have to prove you are human by starting a company and making $1M
Sure. But it is creepy stalker behavior.
search is dying anyway and this will just accelerate that trend.
I'm disappointed that there wasn't a graph showing leads and conversions over time. They say "we didn't receive any leads from these efforts." but does that mean zero customers clicking through to their website?
See my 3rd point, it applies to all inhumane activity. Normal people dont kill, mentally ill/unstable people kill. We are long past the evolutionary need for this shit.
Favorite quote from the article, and a conclusion many of us have come to:

"What's the use of ranking high with content that doesn't engage visitors? If they feel like a bot wrote the content, it defeats the purpose.

If this is what it takes to rank on a search engine, then there's something wrong with the search engine itself."

I've run a marketing company with 7 figure monthly spend. SEO can be extremely important and impactful, particularly in emergent markets, niche products/services, or brand-heavy offers (whether defensive or offensive - think "Best Notion competitors 2023").

But, sadly, it's mostly a devolved game of cat-and-mouse, subject to the effervescent whims of Google, whose ultimate objective is to maximize their ability to serve ads. It's near impossible to get organic content to the first SERP for any remotely competitive keyphrase unless you or your referrers are shelling out cash to Google in some capacity.

I've been pitched by dozens of SEO freelancers and smaller agencies, and the majority of them do have some basis in somewhat provable metrics, but the cost is completely unreasonable relative to the long-term expected value from their results.

I generally don't recommend budgeting for SEO specifically unless you have around $10k+/mo in marketing spend. If you have quality content written and informed by a decent keyphrase strategy, you're usually better off with paid search ads that direct to such content; the expectation is that if your content is relevant and engaging (especially if it converts and you're passing confirmation of that conversion back to Google via GTM or GA) your quality score will increase, which inversely decreases your CPC. You'll tend to rank higher organically for the same keyphrases you're running paid search ads on if you play things well.

Despite making plenty of money from doing this effectively, I long for a future where discovery across the internet isn't beholden to a few corporate gatekeepers.
It's time to change how we cover Elon Musk
Speeding up tree-sitter-Haskell 50x
"One-Half the Money I Spend for Advertising Is Wasted, But I Have Never Been Able To Decide Which Half"

https://quoteinvestigator.com/2022/04/11/advertising/
It's a shibboleth in rationalist circles who convince themselves/others that they're doing Bayesian inference in their heads.
Mapping the Mysteries of the Latent Space with Class Activation Maps
> See code review as a conversation where both of you can learn something and help each other.

I genuinely do not like this. I do not want a conversation here and most of the time I do not want help. I did something, if you have reasonable issue with it, please tell me politely.

However, if you want to help or teach me something, talk to me like a normal person. Do not block my PR because you want to teach me something that should be non-blocking.
I suppose people would take getting into and driving a car more seriously
From a mathematical standpoint those make perfect sense.

The only problem with it is that you can't write things like:

let x^2 + y^2: float = 1
> Being a microkernel doesn't automatically make you more robust.

No, of course, it doesn't automatically do so. But it makes it a whole hell of a lot easier to write a reliable service, if you don't have to deal with all the crap that a monolithic kernel does. In a very real sense, lines of code are a liability: fewer LoC generally translates into fewer bugs in the software.

I think you'd find Plan 9 interesting. It deals with many of the issues you're talking about in a rather head on way. In fact, it takes things even further than Hurd might, and allows processes to migrate to different processors, which may be contained on completely different machines.
Overlooked on HN: Databases That Process Data Faster Than Memory Bandwidth
Create content, I’ll pay you with visibility and then if it works, I’ll pay you with money.

Seems like standard YouTube/TikTok/Twitter too :D
What if the logs were missing entries though? Would you train your AI on missing data?

I found a bug in rsyslog a few years ago, where in certain conditions, log entries were missing. If you know the pattern for what log entries were going missing, then you could craft a very stealthy attack on the system and remain undetected in the logs.
You'd be surprised. Any organization regulated by federal government entities, such as banks via the OCC, FDIC, etc are being required to "meet" CISA guidelines. ESPECIALLY those with federal/military contracts.

CISA has a lot more sway than you'd think in how businesses operate from a security point of view.

Being this broad allows for some more latitude by the businesses / sectors following these guidelines. But they certainly could've been more thorough in their approach without much push back.
Looking at FEZ levels instantly made me want to see if there was something hidden in the levels' names. I've yet to finish it, and boy is this game amazing.
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We're looking to hire for International Business Development & Content Marketer position. https://wellfound.com/company/roas-expert/jobs

Contact: careers@roasexpert.com and mention this post on HN.
But if I live here, then I automatically hold a “Texas energy production expert” card, right?

Actually, surely it’d be a badge. Anyway, I automatically get the badge… right, pardner?
Repeat after me: Flat bands do not imply superconductivity. DFT calculations cannot be used to predict superconductivity. DFT is a single-particle calculation. Superconductivity is a multi-particle phenomenon.

At most, the preprint(s) you're referring to suggest that maybe (under their unverified assumptions) electron-electron interactions could lead to interesting physics in that material. It provides no evidence for what that physics looks like and says nothing about what temperature these things will occur.

High temperature superconductivity is not well understood and we do not have the theoretical tools to make quantitative predictions about it. At best we run dodgy simulations, squint at the resulting plots, and say "hm, that's interesting".
Ask HN: If I wanted a masters in X, what should I learn?
Nope not twitter.

Say you wanted a masters in Statistics, what books or courses online could you do that would cover most of the content?

Can you answer this for any field you've been in? Cellular biology? Organic Chemistry? Physics?

Ideally books/courses recommendations.

Thanks in advance.
> Aeroflot is disabling 1 out of 4 brakes, not all 4

1 out of 4 brakes _so far_...
4) never ignore HTML meta elements/tags[1] - the ancient, pre-"SEO" stuff

[1] https://www.rfc-editor.org/rfc/rfc1866#section-5.2.5
We should make them escrow their source code before releasing products, so that the source can be automatically released when they abandon them.
I have found that there are many aspects and dimensions to listening.

For instance, I am now comfortable hearing very subtle nuance in musical performance, in particular piano performance. Meanwhile, my dad is an audiophile and not musically trained but can hear a whole world of detail when assessing sound scrapes and equalisation. I brought him along to help me choose a digital piano and was humbled by how many things he could hear that were inaudible to me.

A friend of a friend was studying audio engineering and he recorded me playing the piano for a some coursework and the things he was focused on like acoustics, colour, fidelity and things like the very subtle hiss again were very different things I am used to listening out for.

Podcasters will talk about the BBC sound as being the gold standard and while I can tell good from bad I can't internalise what makes a broadcast have a good or bad sound....

Meanwhile back to topic, I've gone piano shopping with professional pianists and they can hear so much more than I can. I love watching videos by this channel on the subject: https://youtube.com/@RobertsPianos
There's significantly more detail in the timeline[1] which is linked to from the cited page.The links aren't all that obvious if, like me, you are looking at the page on a phone.

My favourite part of this story is how the picture, once recovered, toured Italy before being returned to the Louvre. I seem to recall (can't remember the name of the book) that significant sentiment had arisen in Italy suggesting that it shouldn't be returned and the tour was an attempt to address that concern.

[1] https://www.pbs.org/treasuresoftheworld/a_nav/mona_nav/mnav_...
I love this

Reminds me of Stuart & Sons, a company from across the Tasman, with their impressive 108 key Piano

On a side note: can any piano experts chime in on why it seems impossible to DIY electric pianos in the same way?

I'd love to see some experimental Rhodes, Wurlitzers or Hohner Pianet derivatives. The only successful ones seem to be the even more conservative Vintage Vibes and Rhodes MK8.

I'd love to see the same DIY community grow around electric pianos as it has electric guitars and synths for the last 60+ years
The video may or may not be representative what you could have seen with the naked eye.
I used Desqview all the time in the 90s on my 286. Very responsive switching between, for example, WordPerfect 5.1 and a terminal program to connect to my university via a modem.
What are effective, budget-friendly marketing strategies for B2B products?
What are effective, budget-friendly marketing strategies for B2B products?

1. The most effective, budget friendly marketing strategy is to send personalized cold email and doing cold LinkedIn outreaches. But the keyword here is "Personalization." Research a bit about your audience, what they do and what are something they like and personalize it accordingly. Remember, an average business person receives 10+ cold emails per day. And guess what they do, they reply to those which are hyper-personalized and catered around them. So, make sure you send personalized texts whether on LinkedIn or via cold email. Fusionly helps you do just that. It helps you personalize your outreach process and makes the entire personalization journey seamless.

2. Content Marketing: Regular, quality blog posts can be a game changer. SEO is your friend.

3. Another great strategy is founder personal branding - build your brand on Linkedin or even TikTok (I've seen a lot of agencies using these channels with success). Go video first and get your eyeballs.
I can, but why bother when you're itching for a fight over the obvious. Enjoy your day.
I find that the most interesting systems content here sometimes gets overlooked.

In this case, I really enjoyed the combination of new decompression algo + practical example of how to use the new algo to [further] exceed hardware memory bandwidth limits.

Seeing a successful CTO mine HN for new algos is cool too.
So first it has medium, now substack, oh well.

At least the content is quite good.
The criticism I have through kafka is the "at-least-once" semantics.

How do you manage exactly-once semantics? If kafka performance is based on reading small batches of 50 messages, in case of crash of the consumer, some of them will be processed twice. Depending on your business logic this may be ok, or may be create a new problem that must be solved farther in the process by adding an external data store.
"Woodruff sas renewed on a $100,000 personal bond" - does this mean that she was able to front that money?

I understand this as: if she were poor, she'd still be imprisoned.
Actually, the <1 GB distros do indeed boot from USB. I had to specifically choose the USB device from Coreboot's menu. To do this,

1. Press Escape at the rabbit logo
2. Select Boot Menu
3. Select USB (usually the last item)

ArchBang Linux, AntiX Linux, Bodhi Linux, and Puppy Linux boot successfully this way, albeit initialization takes a little bit longer.

Coreboot may have a timeout that is longer than the USB detection logic, and selecting USB commits the choice to wait.

Now I want to try Slackware and maybe even Linux from Scratch (LFS).
This sounds great and exciting!

Since it was explicitly developed as a pgvector replacement, i feel it would have been useful to have a more in deph comparison though..

- what does it do specifically to achieve the speedup, other than rust? Does it use a better similarity search?

- what are potential drawbacks, other that it’s still in development? Missing features? Things that it does differently?
You absolutely can, and as you can see in this paper it is absolutely do-able to measure the resistance of these materials. They measure an insulator with something on the order of 10^6 ohm m. For reference, copper has a resistivity of ~ 10^(-8) ohm m, so there are about 14 orders of magnitude of difference. This does make the contact resistance pretty negligible in this case too.
You ain't kidding. I literally spent a week bootstrapping (read: compiling everything, starting with gcc) Gentoo to get a basic desktop up and running, back when that was a supported thing to do.

Would I do it again? Nah, probably not. Am I glad I did it in the first place? Eh, I was young, had a spare machine, and a bit of a masochist then. But I did learn quite a lot in the process.

These days, I think the closest you can get to the experience I had is building your own Linux from Scratch distro.
And oftentimes hostile reviewing methods spread and become "best practice" in affected teams.

Being polite and collaborative when reviewing always renders better results than all alternative approaches.
It's already weird and clunky on a phone. I do it nonetheless, but I'm experiencing weirdness with pwa's, and of course many apps (sometimes the OS itself) defaults to Chrome for breaking out to web-pages.
Thanks, was posting from mobile and memory.
Question, does anyone know why the lights seem so dim?

Several people have reported that it's the video that was dim and if you actually went to the road in question it appears much brighter in real life.
Movie extras worry they'll be replaced by AI. Hollywood is doing body scans
Facebook has changed, but IIRC, it used to have profile settings where you could say you were a "Man, interested in women" and so forth. You can certainly set a Relationship Status of "Single", but that doesn't necessarily imply "Single and looking". As you know, Facebook started out as a college-oriented app, and so college students were often interested in dating one another through the app, by any means necessary, so there were built-in controls to reflect that sort of atmosphere of young mingling singles.

It may be difficult to correlate people on a given dating app with real-world names, since those are eschewed for privacy's sake, but it would seem that if someone could draw a target on someone with LinkedIn's search filters, and then pivot to find the person on a dating app, surely this would not be much different from the reverse. I guarantee you that everyone who is cautious and prudent will do a full social-media search of anyone they first met on a dating app, before they set foot in public for an in-person date, and there's nothing creepy or stalking about that kind of checking-up.
https://arxiv.org/abs/2308.01516

https://nitter.net/altryne/status/1686279028523847680
My company is operating for, knocking wood, 20 years. We have worked with about a handful of SEO agencies, including some prominent ones, with budgets comparable to what is mentioned in the article. None of them have delivered anything tangible. Temporary increases in inbound leads can be attributed to changes in Google algorithms - they were followed by equivalent decreases. Overall, I'd say that the most fruitful effort for all that time was adding unique content valuable to fellow humans.
That is a nice theory many (especially google) would like me to believe, but if that is the case, why majority of my google first page results can be classified as SEO spam?
Would they? A lethal accident is something like once per million journeys. I don't think about that risk when I start my car. Adding a prison sentence would still not make me think about it, because it's such a tiny risk...

Sorry if that's a bit blunt. It would definitely be better if people were more safety aware.

Maybe making people watch videos like this as part of (re)training of drivers would be more effective?
>A semi-niche device that is also a reliable "Don't need to upgrade hardware for a decade" option definitely has its place in the market, it just won't ever exceed 5% of the market... which would place it exactly where Linux desktop is.

It won't even reach 5% of the market, when it will cost more than a mass produced cheapo Android device, be uglier, have less battery life, and take worse photos along with not being mainstream available in shops.

FOSS phones already exist, and nobody is buying them other than Linux youtube reviewers (and they aren't daily driving them either), because they cost as much as half-decent phones, while being a lot worse and not supporting the major apps that people use to communicate with normies (what people mostly use their phones for).

The amount of consumers who value a FOSS phone over everything else is a lot less than 5% of the market. It's an extremely niche market.