skysight-inc/HackerNews huggingface dataset:
This is a fun blog post, but I thought it was a little hard to follow. A few observations:

When we added the features a new problem emerged: their
ranges are very different from X1 meaning that a small
change in θ2, θ3, θ4 have much bigger imopacts than
changing θ1. This causes problems when we are fitting the
values θ later on.

This was a little confusing because you reference θ2, θ3, θ4 without explicitly showing them in h(x).

Because we will be using the hypothesis function many
times in the future it should be very fast. Right now h
can only compute one the prediction for one training
example at a time. We can change that by vectorizing it

What does it mean for _h_ to compute something? Why is vectorizing better? Context about the computation is needed to determine if vectoring will speed computation.

Why do you use gradient descent when you can use a closed-form solution to solve the regression? It would be nice to discuss both gradient descent and the closed-form solution.

You cover a lot of topics in this blog post which have a lot of nuance and depth (e.g. random initial weights) that merit whole posts on their own.
It’s moments like these that I realize I should have perused more math to find my true programming potential. :/ I’ll never be the good without it.
I'm afraid your comment has broken the HN guidelines, as you'll see if you review https://news.ycombinator.com/newsguidelines.html.

If you have evidence beyond "I feel", please let us know at hn@ycombinator.com so we can investigate. If you don't, please don't post like this, because baseless insinuations poison the community.

Many previous explanations about this can be found at https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme....
A flight plan is not a requirement for night flight in the US.
Yes, currently it uses a SQLite3 DB for storage. The DB is created or updated with Djangos migrate command which runs when the Docker container starts. The DB file can be found in the data folder.

Thanks for your comment, it made me realize I stopped thinking about persistence at some point and now I had to look up on SQLite usage in production. However for the apps current use-case of handling one account / one person it seems fine to use SQLite.
This is the way the world ends—not with a bang, but with a brain-Like electrical signature emerging in a metallic nanowire network.
San Fran or US?
Counterfeits on Amazon cost Warren bird feeder business $1.5M
Worth mentioning this right is often shut down by bullshit police. In Berkeley they shut down protests over police brutality after Eric Gardner died by shooting tear gas into the crowds and beating whomever they could.
I’ll admit the next day they were more tame (thanks to all the videos catching their abuse) but I’ll never forget seeing four officers beat up some female student twenty feet away. Disgusting.
In the sense of getting close to a ballpark that can be refined in later fittings it’s basically the job of a tailor. In the sense of being able to commodify it, as I understand it, no.

As well as there being a technological barrier there is also the cultural barrier in that bespoke suits mean something. I actually think the bra thing makes more sense from the POV of offering better comfort.
Aurora Generator Test
Is that really a problem outside of large scale RTS games like Supreme Commander? I would be surprised if something like Counter Strike would see more than maybe a few dozen concurrently flying bullets in any possible situation.
I've been working with Odoo now for about 2 years. (TLDR; Oddo works fine, but it's documentation really suck). It's great when you want some basic stuff up and running fast. However, my biggest beef about this stack is the lack of good documentation. If you want to build custom stuff there's a huge investment in time to get your head around how things are working. Basically you have to read and understand a lot of the source code to get complicated stuff done. When stuck on "more than basic" stuff it's not unusual to spend days figuring out things. Hell, even basic stuff is hard to grasp sometimes. Don't even ask how much time I spend making VusJS integrate with Odoo.
Generally for the back taxes.
H1 tightening is suggested as a reason for reduction in house prices in SV ... the uncertainty keeps folks from making the commitment. Prices of course are still high in the valley but multiple offers outside of a few cities are a thing of the past
Since blinded tests have proven faith based medicine does not work, this means a general decrease in longevity of the faith based patients. Still, it is a form of insurance by risk spreading and might help bring down the health cartel
It's now 2019, and as far as I know, MSVC still doesn't have full support for the 20-year-old C99 standard.

So either you restrict yourself to the subset of C99 which MSVC understands (AFAIK, newer MSVC releases understand more and more of the C99 standard), or just decide MSVC is no longer relevant (which is easier now that clang-cl exists; some big projects like Firefox and Chrome went this way, see for instance https://blog.mozilla.org/nfroyd/2019/04/25/an-unexpected-ben...).
Exactly.

Zoom out far enough and any activity can have parallels to programming. Almost every activity requires concentration, planning, fear of failure, etc.

Zoom in close enough and programming in Go is nothing like programming in JavaScript.

It's all perspective.
This is absolutely nuts! Congrats!
does V do GC like golang or no GC like rust?
New languages are something sorely needed.

However, has Vlang delivered on its promises? There were several heated discussions around that topic in HN.
Yeah, I think the existing UI is absolutely correct for that one.

I'm not a heavy brew user, but if it works like other package managers then the "update" command is a fairly casual, frequently used, and typically reversible kind of action. If you pull in too high a version of something, oops, remove and redo. Whereas "upgrade" is something you probably only do when you have a specific reason.

I mean, it's sometimes sensible for apps to auto-correct on inputs, but a frequently used "muscle-memory" kind of action should never auto-correct into something heavy and non-reversible. I imagine that's the thinking there.
The laws of thermodynamics don't forbid radiating heat in a directed manner, right?
oh "There's no garbage collection or reference counting. V cleans everything up during compilation. If your V program compiles, it's guaranteed that it's going to be leak free." but "Unfortunately, this only currently works for basic situations; manual management is required for more complex cases, which are another WIP."
Weird.

My university didn't care if you attended lectures. Why would they? It's not a prison camp.

More focused tutorials with 1 on 2 or 1 on 4, sure.

Not everything needs to 'scale'.
As a Russian, can confirm this article is quite accurate - my family only ever celebrates New Years, it's the same as Christmas is usually in the West, and Ded Moroz is totally a thing.
Anything you like. I mean, it precisely calculates the inner product of a constant-amplitude complex exponential with the signal, so the tradeoff is the same as with the FFT, except that you have the option of using a fractional number of cycles.

In the Dercuano note I mentioned in my comment above, I go into some detail about alternative ways to window.
Yes, but last summer's heat waves definitely count as abnormal conditions (though I fear that they will become more and more normal in the future).
You might be interested in the design principals of the tidyverse, a group of R packages built to support data analysis.

https://design.tidyverse.org/unifying-principles.html

One emphasis of theirs that I find really powerful is the "pit of success", where the least effort action moves toward a positive outcome.

Broader overview of tidyverse here:

https://tidyverse.tidyverse.org/articles/paper.html
Very strong, forceful denials from the parties involved and no followup from Bloomberg: https://www.bloomberg.com/news/articles/2018-10-04/the-big-h...
That's because those are social problems, not technical ones, even if they happen to take place on a computer
Couple of ways to do it. If you don't want to deal with the latency required to take the block-to-block phase difference (which somehow ended up with the $50 nomenclature "phase vocoder"), you can just do a parabolic fit on the magnitudes of the central bin and its adjacent pair. 99% of the time, the latter is sufficient. With only three points the math is super trivial [1].

For sharp/flat indication, I'd be inclined to look at the adjacent-bin magnitudes. But it's been explained to me numerous times that tuning an instrument isn't just a matter of measuring its frequency, and while I can't argue with that, I don't think I'm ever going to truly grok it.

1: https://ccrma.stanford.edu/~jos/sasp/Quadratic_Interpolation...
I once assisted to an interesting discussion about the extensions of rights (morally and legally) and recognition of "status" to things previously considered "lower". E.g. different races or castes, pets, other animals, even plants[0].

It would appear the sphere of what we consider "worthy of respect/like us" is expanding. At the same time, as a society we often only pay lip service to the concept and end up justifying stuff like concentration camps for immigrants or mass animal cruelty. Humankind is varied.

[0] one classic argument being "Should Trees Have Standing" https://global.oup.com/academic/product/should-trees-have-st...
Related from 6 months ago: https://news.ycombinator.com/item?id=20221047

2017: https://news.ycombinator.com/item?id=14939295

2015: https://news.ycombinator.com/item?id=10724639
2 days out of action over 10 years seems like a fairly good uptime imo
Programmer's Guide to Theory – NP and Co-NP
Unfortunately the electronics industry has adopted the propaganda term “intellectual property” to mean “designs”, so that's what the parent is referring to: decades worth of validated designs.
For some reason this site has gone out of its way to make reading more difficult by removing scroll momentum. As a result it takes quite a lot of effort just to read a few of these.
Algebra lacks a static type system, too. If among the numbers we recognize types such as "integer", "rational", "real", "complex", we need dynamic typing, because the value of any polynomial fraction P(z)/Q(z) for any given z can be any of these types, depending nontrivially on the value of z and all the coefficients.
Even for supported cards, Apple's drivers are broken. OpenGL support is a decade old and deprecated. No Vulkan support whatsoever. No Direct3D either. No CUDA even if you own an NVIDIA card.

The only thing that works is Metal, on purpose.
I think the largest issue is a lack of documentation. Go-Micro is ~5 years old, so definitely not new. Pub Sub works pretty well; check out the PubSub example in micro/examples.
Eris – A better way to handle, trace, and log errors in Go
This will lead to a lower risk for people shouting their actual feelings on the platform. Also I feel like something like this is direly needed with big tech starting to become "regulated" and breeding an atmosphere of censorship and "like farming".
On the other hand, this could also allow for people to easily spread hate and zeal for or about things that will cause more negativity and suffering.
Wish you all, especially those who took a little step towards your dream, a merry Christmas and a happy new year. Keep it going.
Please, explain to me how I deformed it when they label “all doctor talk” of the “inversion of the relationship between patients and physicians” as quackery without any reasoned argument to support such “humble opinion.” The position in the original submission is straight forward: The study was funded by Apple to drive sales by people who generally don’t suffer with atrial fibrillation. Consequently, this will create unnecessary alarm in the worried well, who will undergo needless testing and possibly harmful therapy. There is already plenty of superfluous medical evaluations and treatments at a huge cost. Are we supposed to encourage this when it is clearly industry driven with little evidence in how it advances healthcare. If this is my ax to grind, so be it, but as a physician, shouldn’t I be cynically happy that more business will be coming my way?
What kind of ingrate files an issue on a Christmas present?
> You don't seem to understand what "class struggle" means.

Sabotaging public infrastructure because you throw a tantrum about how many temp workers a company hires in the Christmas holidays is not class struggle, it's just mob tactics and should be punished accordingly.
If this interests you, you should check out the bivector community https://bivector.net/

Join the discord https://discord.gg/vGY6pPk.

Check out a demo https://observablehq.com/@enkimute/animated-orbits
I assumed this would be more personal. People expressing anger, depression, etc. This seems to be rants about things they find mildly annoying.
Not sure if the site wants or will encourage/enforce one or the others.
I mean, this is true of most public transport even in places like London.

Why is sitting on a bus not as comfortable as being a passenger in a mid range car? It totally could be, but that would cost more than the bare minimum.

So we have broken AC and uncomfortable seats. So it goes.

It's not awful. It's actually quite good. But I really wish sometimes that public transport could be _nice_ rather than tolerable.
Thanks for checking it out dvduval. Just to make sure, you have to drag it to the bookmark bar specifically, and not the toolbar on the right side of the address field. Here is a (linkding unrelated) video that shows the general idea: https://www.youtube.com/watch?v=dauK_-jcqP8

I think by default Chrome hides the bookmark bar when you are on a page. You can toggle the bookmark bar to be shown permanently from the Chrome Settings. If you're on a Mac the shortcut is CMD+Shift+B, on Windows it should be CTRL+Shift+B.

If that doesn't solve your problem - do you have any specific settings in Chrome, like Javascript disabled?
Multitasking. Watching videos, writing something up, having another website open, messaging, Skype, or anything else you can think of while browsing. Having two windows open side by side isn't abnormal and is one of the main reasons why window managers even exist instead of desktops using a mobile-like UI paradigm where you can only have one program on the screen at a time.

Counter question: why would you want something as one-dimensional as a website (especially the OP) taking up all of your screen real estate?
For most, win7 turned into 10 via free upgrade.
> It’s moments like these that I realize I should have perused more math to find my true programming potential. :/ I’ll never be the good without it.

It's never too late! I think that this is a good time to roll out:

> “The best time to plant a tree was 20 years ago. The second best time is now.”

(which I first heard from rabidrat at https://news.ycombinator.com/item?id=12204797).
Gosh, this website is one of the worst cookie consent implementation with the oath familly...
Functional Oocytes Derived from Granulosa Cells in Mice
>Dark Souls doesn't really model swords colliding at all.

This is a good point, the only collisions are what you said and animations for parry windows.

And yes the rag doll physics in DS games is pretty silly.

Have you checked out Mordhau at all? Because that is probably more of the collisions/interactions you were initially referring to.
I’m agreeing with you. And to an even greater degree if that’s €30k split between two adults and a child.
What's up with the editorialized submission title?

Did we ever figure out what V's author is trying to sell? The closest I came to a motivation is that they want attention, acclaim, and a cult of personality; y'know, the Wolfram special.
I'm always grateful for all issues, on all repos, if the intention is to genuinely improve the project.
A fish, a gun, and a smoking barrel.
> Event notifications are a core pattern in micro service development.

I might agree, but it's not the only core pattern.

What if one needs (distributed) transactions? The fact that pub/sub is advertised as a prominent feature makes me think that asynchronous models are preferred, at least in design and philosophy of the framework.
combat flight simulators like DCS and IL2 have this.
Basically every networked multiplayer shooter has to trust the client; even if it's as basic as "did the player put their cursor over this guy's head"
> Family courts have already moved past special treatment of women; they now operate in a best interests of the child doctrine.

That is incredibly naive. I personally know fathers who have been screwed over by a court system that is biased towards the female gender over all other considerations, to the point that it will grant sole custody of children to an ex-wife with multiple severe mental illnesses living with known-abusive grandparents who have been reported to CPS by their neighbors and which refuses to even enforce visitation rights for the father (who, y'know, actually has a job, and actually pays more attention to his kid than just shoving her in front of a TV all day when he is allowed to see her). And all because "of course the child should be with her mother".
Thanks for posting. I love this kind of deadpan parody video.
The figure corresponding to overfitting doesn't seem right.

More intuitive figures can be found e.g. here:

https://www.quora.com/What-are-the-key-trade-offs-between-ov...
It's hard to change people's commuting behavior because they've explored the options and optimized it according to their priorities. Its hard to convince people to "de-optimize" once they believe they have optimized.

For instance, they would rather sit through traffic for forty minutes, then be on some combination of buses and trains for eighty minutes, because time is an important optimization parameter. A bicycle might get them there in thirty minutes, but it's not for everyone, and particularly not for everyone in all weather. Effort and comfort are optimization parameters for many people.

Traffic and tense situations have their stress, but so does waiting for some bus, and being passed by when it comes because it is too full to pick up any more passengers.

Cycling is dangerous, and tense situations that can occur when cycling in traffic are way more nerve-frazzling than ones that occur in driving, on a more regular basis.
Why do you feel that a hardware product being too powerful is a problem?
Summary:

> The generation of genomically stable and functional oocytes has great potential for preserving fertility and restoring ovarian function. It remains elusive whether functional oocytes can be generated from adult female somatic cells through reprogramming to germline-competent pluripotent stem cells (gPSCs) by chemical treatment alone. Here, we show that somatic granulosa cells isolated from adult mouse ovaries can be robustly induced to generate gPSCs by a purely chemical approach, with additional Rock inhibition and critical reprogramming facilitated by crotonic sodium or acid. These gPSCs acquired high germline competency and could consistently be directed to differentiate into primordial-germ-cell-like cells and form functional oocytes that produce fertile mice. Moreover, gPSCs promoted by crotonylation and the derived germ cells exhibited longer telomeres and high genomic stability like PGCs in vivo, providing additional evidence supporting the safety and effectiveness of chemical induction, which is particularly important for germ cells in genetic inheritance.

In other words, they've managed to turn a somatic cell (i.e., not a sperm or egg) into an oocyte (i.e., egg cell) purely via chemical means, and these oocytes could be fertilized via IVF to produce fertile mice.

If this can be replicated in humans, this means that:

1. Women past the age of menopause can have children (albeit via surrogacy).
2. https://www.gwern.net/Embryo-selection becomes much more feasible than before, since both sperm and eggs can be produced in large quantities.
I have two small boxes of books that I’ve carried forward with me for several decades. Most other books come and go. This, and The Little Lisper, are among them.
As usual, the statement from SO is horrifyingly tone-deaf, the responses cut it apart like a scalpel, and nobody is happy with the outcome.
Today an esp32 is more bang for your buck. 80mhz dual core, has wifi and bluetooth, and so on

Edit: and you can program it with the arduino IDE
I think the key word is "option". In no way should we make registration of bikes compulsory. But at the very least I would like to insure something worth over $500-1k.
PLL is an interesting option, never thought of that, that is worth pursuing, thank you. And like the other comment already wrote, state of the art.

The project is automatic music transcription, the 'gold standard' that I've found so far is Magenta based 'Onsets and Frames' (https://magenta.tensorflow.org/onsets-frames ), which scores pretty good on a large benchmark.

I'm still a ways away from being their score but there is real chance that it will happen. The tensorflow based software is super slow, many orders of magnitude slower than realtime would require and I have a bunch of applications in mind where slower than realtime is not an option.

Here are the two side-by-side across the same testset (first mine):

// di 24 dec 2019 16:49:29 CET overall total 17482 correct 12604 fp(fantasized) 2723 fn(missed) 4878 f_measure 76.833 precision 82.234 recall 72.097 accuracy 62.381

vs (Magenta O&F):

// wo 25 dec 2019 20:09:51 CET overall total 17482 correct 13865 fp(fantasized) 2908 fn(missed) 3617 f_measure 80.952 precision 82.663 recall 79.31 accuracy 67.999

Clearly the O&F software has the edge in detection but it is close enough that I have some hope of beating that score, I'm already way ahead of what they list as the 'previous state of the art'.
Swords are also hard to control with a mouse and keyboard.

Imagine yourself surrounded by a transparent sphere, on which you can paint a point and a line. Where on the sword is that point? How does the point/sword travel along a line?

This is not easy to solve.
What happens if you shift your perspective after a sword attack is drawn? Can you amplify it by looking away? Can you arrest the motion, by looking towards the executed sword motion.
It’s work.
No they don't.

This is without a doubt a product of badly designed software.

That badly designed software is making life difficult for people based on assumptions about race and gender. It's a problem which is worth fixing and deserves attention.
That's previous year's discussion and I have a comment there :) Merry Christmas HN!
From my experience with micro, it is pretty easy. You can use the template commands with `micro new user` to make a service and `micro new api --type=api` to create the api. Add a data layer to the User service for persistence. Next, you can create a user service client called by the routes in the api. Then running the micro runtime via `micro api` will allow you to make calls to domain.com/api/{RPC}.
Merry Crisis!
Interesting and commendable that California dept of agriculture is setting the world standards for electric vehicle charging stations.
This is a non-apology.

They attacked a superb contributor, did nasty things, were found to be the bad people, and at the end they asked Monica to "apply" to get reinstated.
Yes, that would be really cool. I found some bras that fit me well for a time, but seem to wear out. By day, I'm a composites engineer, so I would love to use some really good patterns and see if I can make one with Kevlar or something that will wear out more slowly.