skysight-inc/HackerNews huggingface dataset:
> The standard best practices in STATS 101 is to compute R^2 coefficient (based on data of the sample), which is akin to reporting error estimates on your training data (in-sample predictive accuracy).

That's not the best practice at all. It ain't even standard because adj R^2 exist to penalized coefficient cheating and if you cheat on your degree of freedom. And on top of that we got other penalization functions other than R^2 such as AIC and AAIC.

All of them are just for comparison between similar type of models and it's not suppose to be use for generalization test for unseen data. We're taught CV too and it is of statistic invention. And also taught about training set and test set with CV.

If you want to debug for test data you have to do CV anyway for imbalance data. So this is comparing apple to banana with R^2 vs out of sample.

You can see all of this in the book that applied statistic uses for linear regression, Applied Linear Statistical Models by Kutner & et al.
In a first, Israel responds to Hamas hackers with an air-strike
An 'or' search doesn't increase things exponentially.

In the simplest model of an 'or' search, each keyword returns a postings list, and the result is the union of those lists. This is linear.

The size of the resulting list is at most N times the largest posting list.

In practice, the merger uses a weighting scheme so that documents with (say) 5 words of the 7 come before documents with (say) 3 of the 7.

And documents with all terms should be on the top of the list.

The merger is at worst N log(N) for the sort.

Most people only look at the first page, or first few pages of results, so it doesn't really matter, does it?
It's part of being completely incompetent at their job then charging people for the "convenience"

It's the same BS with credit scores/credit freeze
X-PLANE 11.33: Small update brings over 200 new airports
It is somewhat ignorant not to see China and US has very different transportation system and population density. Building logitistics in US is a totally different story from of China. Put Alibaba in US, they will fail like Amazon did in China.
XFS is supported by effectively every distribution and has very significant development each release (even the test-suite for all filesystems is called xfstests because it used to be only part of XFS). And despite being older than ext (and older than Linux itself), XFS has lots of features which ext doesn't have -- such as reflinks and CoW (though XFS also doesn't have ext4-style encryption).
Exactly how many meaningful crimes have been prevented or busted because of this behavior?

I think sacrificing liberty for security is generally a bad idea. But it seems we're increasingly sacrificing liberty for nothing, which is a rather worse idea. We're creating a dystopia for what? To get people to click on ads on one front, and on fronts like this - the pretext is mostly to stop terrorism, but that's something that should be cleanly quantifiable. So let's quantify it. How many terrorist attacks has this stopped? I think the safe ballpark is exactly 0.

I also don't understand why more people don't seem to ask this question. Can governments do this is going to be an extremely difficult to answer question that few of us lack the expertise to even begin to delve into. Even for those of us with it, there are contradictory views. It seems much easier to answer should governments do this. And if they're driving a meaningful deterioration of society, as I would call the stripping of basic rights of individual privacy, and have nothing of substance to show for it - then this is something for which there is no ambiguity whatsoever.
You would be surprised at the lack of ability of people in general to do that
funny thing about NEVER...we would never had Magna Carta without believing the commoner could over come this

King John was turned around..so can rich people be turned around...not all revolutions are fast and violent

some are slow and very subtle
I’d say it’s in fact where the real fun happens
This is very interesting, thank you very much for sharing it.
Plant a new one? You can maintain a cemetery forest just like a regular one; the dead people aren't going to care, and so long as the forest maintenance is not completely neglected, why would the survivors complain either? It's not like regular tombstones don't erode away with time just like trees would.

I don't know about you, but for me even a fallen tree sounds like a more interesting tomb marker than a slab of stone.
> Well, people shouldn't be buying antibiotics without a doctors note.

Why? It's not rocket science, and it's not like this is a complex decision that you couldn't adequately make after 15 of Internet searching.

The fake mystique imparted on general practitioner doctors is a toxic force for bad in the world.

> Doctors shouldn't be prescribing antibiotics unless there is a big real need.

The doctor doesn't know if there is a "big real need", and in fact cannot.

The doctor is just running off a standard checklist for one of among 50 almost exactly alike cases during his workday.
Understanding Bloom Filters with Pharo
What devices do you support?
My friends are smart enough to use modern means of communication
There's plenty of room for competitors to breathe on the niche end of e-commerce. Etsy, for example is doing great, and I don't see how Amazon could take their market at all.

Also, physical stores clearly have some value for Amazon themselves to be opening them, and at that point they're going to have a much tougher time competing - cool tech notwithstanding.
Sure, but I think things like "we can now do one take and then it's phone call o'clock" would set an unnecessary pressure to the performance. That's just me of course.
> You could say that hash is a very aggressive, lossy compression.

You could but it would be about as misleading as a sentence could possibly be.

The purpose of compression is to preserve content as much as possible: similar inputs should give similar outputs, and the output should provide as much information about the input as it can.

Hashing deliberately does the exact opposite - slightly different inputs should give wildly different outputs - as its primary purpose in the case of crypto hashes, and in the case of index hashes as a performance optimization (which is the primary purpose of index hashes).
I would award it The Best UI for being so usable it spread like a weed. I trained juniors fresh out of college who self-learned perfect web UIs in Bootstrap. But when they use custom design (based on Bootstrap) I discover a handful of bugs in minutes. Some design changes seem fine to everybody else but causes your burdens to multiply.
Show HN: Nomocle – Create Hacker News dashboards and follow topics
Go to a Church?
> Paying a government-funded profession based on risk creates perverse incentives

This is horrendous and depressingly, probably true. It's important to see the incentive structure from both sides and to try and consider the unintended consequences of seemly good actions.

That doesn't detract from the position that midwives probably deserve higher pay. Tragically, the system we live in is that those that help increase capital get more pay, while those that actually do the meaningful foundational work (help bringing people to life, saving lives, teaching, all the things required to actually have a workforce that can generate capital) don't get paid enough.
Easy Chicken Tagine
Currently iPhones 5 and higher and any device running Android 7 and higher. We should be able to support Android 6 soon as well.
I'm not sure if it's feature of all modern SSD or Samsung ones, but I know that those SSD use AES internally for all data (not for encryption specifically, but because they need random bits for better storage and encryption is just a bonus). User usually does not deal with it, as it's handled in firmware, but BIOS have the option to securely erase the disk which just generates new key instantly and then, obviously, it's not possible to recover any data from old sectors.
I have been on the tipping edge of switching from FF to another browser for a long time now.

Short-lived bugs such as this one do not annoy me as much as the terrible performance of FF. It is not rare that FF uses 2 cores at full utilization all the time.

I always end up installing a new browser out of anger, but I _always_ come back to FF for its great features that I have become addicted to.
That doesn't preclude them from building nested replies. For example, they could add a line like `Reply-To: <comment-url>` to the comment to establish its parent.
I think someone was imprisoned in UK for refusal of giving password. Don't joke with government.
It's available in other countries now but only as a part of a paid service.
It was chosen as a national dish by the government, which seems completely uncontroversial.
You might have read it here on HN [0] 9 months ago

[0] https://news.ycombinator.com/item?id=17770707
كلمات اغنية ابن مصر محمود العسيلي و مصطفى حجاج و مدحت صالح مكتوبة
Show HN: PenguinTrace – Show how code maps to assembly and step through it
This is a side project I've been working on, which is intended to help see how code maps to assembly and how it runs on a processor by stepping through the code and assembly simultaneously.

A bit more background to the project is available on the website at https://penguintrace.org/2019/04/29/welcome-and-background.h....

The easiest way to try it out is probably through Docker (instructions on github), any feedback or suggestions are welcome.
How to exchange XLM to fiat money?
Negative effects of co-workers mixing up people of color in the office
If you haven't read this one yet, here's one data point on Brave doing something unethical (blocking ads and collecting payments on behalf of websites without consent/agreement). [1] Tangentially, I'm writing this comment using Brave.

[1]: https://news.ycombinator.com/item?id=18734999
i used to work on a similar board 5 years ago called ESP8266. So not sure whats new here.
My high school robotics team is working on something similar with Raspberry Pi's. There is not much documentation but you can check out the code here: https://github.com/InspireRobotics/sumobots
I get that you're tackling this specific argument, but it's important to remember the context too.

She makes between $56 and $85 dollars a month. Working 12 months a year, for 50 years, she'll make a total of around $42,000 dollars. It's hard to argue that is remotely fair.
Damn, I would have loved to have this book during my studies in Compuational Science and Engineering [CSE] (especially the chapters on Molecular Dynamics and the N-Body Problem, since these topics are great examples for the introduction of high-performance computing on a bigger scale or computational physics in general).

Quite a few equations and pictures are not rendered correctly online; I found the PDF version of the book from Mr. Eijkhout's official site: http://pages.tacc.utexas.edu/~eijkhout/Articles/EijkhoutIntr...

PS: In case some people are interested in these kind of topics (high-performance computing, simulations, and computational physics) and live in Switzerland (or plan to study there), the CSE major at ETH Zürich covers almost all the presented topics in Mr. Eijkhout's book: http://www.rw.ethz.ch/ Disclaimer: Got my degree in CSE from there.
Is it normal in medicine to refer to a baby's physical sex as its "gender"? I'm not looking to start a debate on whether that is right or wrong, just curious to know if that's the common usage or just this particular writer's preference.
Honestly, it feels like Amazon's admittedly great customer service is just a band-aid over the systemic problems their website has with spam, fake reviews and scammers. Instead of fixing the problem they just patch a solution.
We'd start by making sure these lifetimes need distinguishing, i.e. that they aren't actually equivalent.
SolidInvoice 2.0.0 Released
At many graveyards you now lease a grave for a certain number of years, not in perpetuity. Not really much different to that. No idea what they do with the bodies once the lease is up...
You should talk to your wife and come up with a plan with her.

Give 100% priority to your daughter and wife, and see where that is going to lead you.
Tunnel of Books: Yangzhou Shi, China
I'm not sure what you're responding to, but AoA indicators have very little to do with weight and balance.

Fuel loads, critical airspeeds, and maneuvering characteristics are indeed governed by weight and balance. That has nothing to do with AoA reading mismatch indicators.

Was there a separate question about automatic weight and balance measurement as a feature?
That was a good read.

I wrote 10 books for conventional publishers (Springer-Verlag, McGraw Hill, Morgan Kaufman, J Riley) but burned out on writing. What made writing new and fresh for me was a few years later starting to self publish. I sell far fewer books but I find it much more satisfying writing exactly what I want, not what publishers’ market research dictates.

I stopped publishing physical books, via the excellent Lulu service, because a physical book freezes what I can do with the content. I use leanpub now to publish eBooks and I can effortlessly fix small errors, add examples, and sometimes declare a new edition by adding material and removing out of date material. The platform lets readers get the updates for free. I also started releasing my eBooks with a Creative Commons share with no modifications or commercial reuse license - I encourage readers to share my books with their friends.

The author of this article makes a good case for using an email newsletter. I generally only spend about two hours a day writing and I am not sure if I want to spend some of that time on a newsletter.
An ESP8266 is not similar to an AM335x. AM335X is a 1GHz ARM Cortex-A8. Microcontroller versus Microprocessor.
How about we avoid that slippery slope entirely, by using a very expansive definition lumps in sex with anyone under 21 as going in the 'depraved or otherwise a problem' category.

Now will you please consider giving some data or some kind of percentage or explain why you said "probably"?

No one is trying to claim this kind of horrible behavior doesn't exist. But I want to understand the scale of the problem. Trying to figure out if it's 10% or 90% is not nitpicking!
I wonder if they'll license the tech to other companies. They could just take a percentage fee of all transactions by customer purchases. I reckon the cost savings in staff would be enough for most businesses to justify it.

Has anyone had any luck with cloning this technology yet? I suppose the devil's in the details (and the hardware) with this one.
Fork and spoon throughout most of Thailand unless you are eating noodle soup. Pad thai, pad si ew, mii korat are common noodle dishes that aren't soups and it is always fork and spoon.
Might also be because the Netherlands is a small and relatively expensive country in Europe where international rates are quite high. So, it's not compelling enough for them to open an call center in NL, and placing it outside of NL would increase their phone costs.

Also, not many people on the planet speak dutch, so the addressable market is quite small.
Working on personal projects, not having to conform to other people’s requirements, trying a bunch of cool hacks and getting to see how things really work…that’s the most fun part of programming!
Pho is literally "rice skin" in its Chinese characters, while it looks more like Yunnan "rice threads", "rice skin" is popular in Guangdong. Not sure about its history, the wikipedia indicates some link to Chinese workers, it also does sound like "fen".
I’m hoping eventually we’ll have some form of true content-addressable storage for the web - so browsers cache content by hash instead of address. That way we wouldn’t be re-downloading jQuery-3.0.6-min.js for each website we visit (that isn’t using a CDN), but only once - the same could be done with WebAssembly - assuming it doesn’t require monolithic statically linked blobs.
I've been programming professionally for 19 years.

I've been given permission and time to write tests for 9 of those years, at only 2 out of 6 total companies.
Sounds like it'd be easier to just replace the ringer with a light.
Good question.

The dominant paradigm for search today is the "vector space model".

The rough idea is that you start with "OR" and then score the documents so:

* the more words occur, the higher the rank

* the more frequent the words are in the document, the higher the rank

* less common words contribute more to the score

* tuning has to be done so that small documents are not privileged relative to large documents or vice versa (that turns out to be difficult, the first good algorithm for this was discovered 25 years ago, but it is hardly used commercially because nobody can be bothered to tune it for their specific text corpus)

Given that you aren't going to read 5000 results for "chrome desktop" (unless you're researching patents) it is not a problem so well as the results at the top of the ranking are good.

Google has very different concerns than most. If you have a small collection the immediate problem is that one of the documents means "chrome desktop" but uses some other words to mean that, so you miss the document. So you need tricks to find those documents. If you have a huge collection then there is going to be some document where somebody used the same language as you and you'll be satisfied.

If AND were the default, you'd find that ordinary users would frequently find nothing and give up.

Recruiters, professional patent searchers, and other people who do nothing but search all day collect large collections of "boolean strings" that help them in their work. The best search engines, based on the VSM but using additional tricks such as autoencoders, perform comparably. The typical web search engine is worse.
> What I was distinguishing between was keeping the most recent file vs. the most recent entry in a given file

Sure! (sorry, have finally had my morning coffee). I believe that Bitwarden handles it correctly via "live sync" [0]. - albeit it's been a transparent process to me. I've generated logins on my mobile, and logged into them within 30s via the browser extensions on my desktop PC.

> I can't figure out how the KeePass (or the plugin you use, or whatever it is) was handling your Dropbox syncing;it sounds like it was doing a dumb file-level merge

It was, and it was excruciating. However, this is one of the issues I have with Keepass - it may be possible to do better, but the default behaviour is abhorrent.

From the link you gave, it explicitly calls out the issue in "advanced" synchronisation schemes under "Local <-> Master" [1]. If you don't correctly follow the setup steps you can end up with [2] which can (and does) result in data loss. The (as far as I can tell) official (as far as I can tell) forums seem to be happy to pass the buck [3] and say "Oh that's not our problem, that's the sync services problem".

> I use the Google Sync Plugin which has never failed me

I don't doubt that for a minute, but for someone migrating from LastPass/OnePass to Keepass, searching for "How to sync keepass across machines" will _never_ point you to the google sync plugin.

[0] https://blog.bitwarden.com/live-sync-bitwarden-apps-fb7a5456...
[1] https://keepass.info/help/kb/trigger_examples.html#dbsync
[2] https://sourceforge.net/p/keepass/discussion/329221/thread/2...
[3] https://sourceforge.net/p/keepass/discussion/329221/thread/9...
The Pixel phones have integrated call screening in the dialer too.
>Chinese disapora

>Mainland mandarin

Chinese diaspora in SE Asia is largely Hokkien or Cantonese speaking.
Sure, but they are still responsible for the effects. That we can't forget.

Ignoring the complex system they have created is their fault
> Why? It's not rocket science, and it's not like this is a complex decision that you couldn't adequately make after 15 of Internet searching.

If you've got a tonsillitis (one of the most common reasons for getting antibiotics), how to you find out whether it's the bacterial or the viral type?
Is that the poll that puts Biden at such a huge lead?
> Do spam callers really think I'm expecting a call from the same area code, same exchange as my own number? Do most people have friends that have phone numbers with the same first six digits in common with their own?

In the US, outside of the dense metro areas, this is a much more common than you think. For non-metro areas, it is quite common for everyone in the area (business and personal) with which you might receive a call has a number in the same exchange as your number.

But it is doubtful the spammers are considering that fact. It is much more likely they simply did A/B testing and saw a measurable increase in answer rate if the transmitted caller ID matched area code and exchange of the number they were dialing. And so they simply started using this trick, because their testing showed it worked.
The data’s too expensive on Fi. It’s worth it for roaming but I’m dual-SIMing AT&T in New York because why pay overage rates for basic?

I love having the service but financially I hope they sort some of this stuff out. It could attract more people, too.
XFS is pretty popular among DBAs. It is a solid file system which delivers good performance and is actively developed.
How to Save Money on Flights and Cheap Airline Tickets to Anywhere?
From Wikipedia: "A hash function is any function that can be used to map data of arbitrary size onto data of a fixed size."

As for hash functions having the desired property of different inputs leading to vastly different outputs, that only describes one subset. There are many hash algorithms that aim to achieve precisely the opposite, such as simhash.
Portrait of a Google AI art project as a poetic you
I'd like to see some RAM usage comparisons.
I'm reaching the conclusion that thinking the future of the book would be a different product is hugely flawed. Books, or reasonably static electronic equivalents -- PDFs and ePubs -- suit the process of immersive long-form content assimilation. Spastic UI/UX does not.

But as with quipu, cuneiform, papyrus, the codex, moveable type, and its manifold enhancements over the past two centuries (the preceding 350 years saw virtually none to the press itself, though book-form itself advanced markedly), the biggest differences have come in the process of creating, publishing, duplicating, archiving, and propagating texts. Not, for the most part, accessing them.

Starting about 1880, a number of changes to text development and distribution began, with typewritten "manuscripts", loose-leaf bindings (enabling updating of already-published texts), databases, digital text storage, digital typesetting (roff and kin, early 1970s), version control systems, online and hypertext systems, wikis, and distributed version control.

(We might push that back slightly further as well to Carl Linnaeus and index cards.)

The ability of many people to collaborate, or compete, in developing a collective narrative, with instantaneous typeset updates is truly novel. It's also to a large degree independent of and agnostic to end-point consumption -- desktop, laptop, mobile, TTS, and hardcopy are all reasonably equivalent from the perspective of the txt.

(Text discovery, recommendation, and popularity are another matter, McLuhan's observations re: medium are relevant.)

We should pay far more attention to process rather than product.
Up to one million species are on the verge of extinction, U.N. panel says
Sports are a great way for me since you already will have one thing in common with the people there are there's a lot of opportunities for bonding. Volunteering is another great one. Meetup is not necessarily all business, there's plenty of hobby meetups.
Presumably, by getting a bacterial test. That's done in a lab and isn't a doctor's job.
Air France 447 immediately comes to mind, where the crew (or maybe specifically the copilot who kept pitching up for minutes) lost their airspeed indication and thought the stall warning was frivolous despite falling vertically at terminal velocity for minutes.