skysight-inc/HackerNews huggingface dataset:
The cohort for someone repurchasing the exact same item within the following month is probably a lot higher than just showing an ad for some other random item. This probably isn't a number like 20% more likely, it could be like 500-1000x. There may just not be enough data to exclude specific products. On the other hand retargeting companies definitely are over selling inventory to non sophisticated clients that should be excluded.

Targeting definitely works. A big entrepreneurial mistake is looking at things through your own eyes instead of those of users. Many brilliant coders can't get a handle on the business stuff because they just assume everyone else thinks and behaves like they do.
But the physics of that is entirely wrong. See Olbers' paradox. Eyeballing it is fine; if you miss you will almost certainly never hit anything - it was considered fine to eyeball AA in WWII, and the odds of hitting a friendly fighter there were worse; also there are already plenty of big rocks going fast in space.
Learn Pointer in C Easily
I don't really understand these kinds of initiatives that say they will use "blockchain technology", but seem to imply that they won't use the bitcoin blockchain.

It's the amount of computing power that keeps a blockchain secure and an independent blockchain has no hope of reaching the same level of hashing as the bitcoin blockchain.

It's the question of how their technology will interact with the bitcoin blockchain to leverage that hashing power that I'm interested in.

Or perhaps they could just be happy with a blockchain that might be (relatively) easy to attack.
Wow, that is some deep stuff. "The King’s Man in his red royal livery plucked his master’s anxiety about the need for unquestioned authority and used it to summon up the deeper fear that, in their most secret selves, must haunt all kings."

Is anyone doing this today?
How to Build a Successful Incident Response Plan
Written in node means that devs will be the main user-group ? I normally do not have node installed other then on my Mac (not on servers, not on win-machines).
Url changed from http://www.theverge.com/2015/8/14/9153083/samsung-worlds-lar..., which points to this.
Ads will die soon. Any day now. Doomed business model.
I think he could, definitely. Some artists have been sued for way less. I'm pretty sure this stuff was sampled and used by more than 10 000 different artists, in the drum'n'bass scene it's obvious.
That's because the article is just a thinly veiled ad for the author's ad-free service.
My issue with that is the first great online walled garden was AOL and they were competing against (using and cutting off) SMTP. So there was a ready made, open, federated solution waiting to burst out.

Whereas in Facebook, Google etc, the open solution is usually following the walled garden. I yearn for open solutions but they will have to follow open internet access (local grids) and then the economics of sending a packet to SF in order to message my next door neighbour becomes more obvious.
Thanks. Changed from http://time.com/4113855/anne-frank-diary-co-author/.
The major difference there is that LHC data measures processes which are inherently stochastic (because QM), so using these methods is pretty natural. The OP, however, is applying the same methods to highly complex, but nominally deterministic problems.
How to track sales with Google Analytics?
Fun with btrfs: What files have changed?
Security is always about economy - it is after all about incentives and disincentives. Bitcoin makes this explicite with the mining process and the currency. Now it seems that some financial companies like the idea of a fully decentralized ledger, system where you don't need to trust a central authority to settle deals. But they don't like the currency part of it. I can understand them - I for one hate the wastefulness of the mining process - but it seems like they believe that they can build a decentralized system without the currency part that supports the economy of incentives and disincentives. Don't they understand the link between those two parts? Or maybe they think that it is enough to build some cargo cult system - that just copies the names, but is not decentralized at all - to lure investors?

Update:s/distributed/decentralized/
Surely we can adjust the protocol to say "has found 8 0's and signed the value with one of these private keys". Attacks become based around the security of those keys - as its a private chain anyway, do we mind?
> I honestly can't think of a language that even support overloading of methods based on run time types.

Clojure does with multimethods ( http://clojure.org/runtime_polymorphism ). I suspect lisp with meta object protocol does too, but I only heard about it, so can't confirm.

EDIT: deleted my solution that worked without method overloading at all, cause I missed some constraints.
there is nothing outstanding about safety in Vietnam, most of south east asia can be packed in the same bucket, with +- same safety, and just different flavors of exotics
> And writing custom code to duplicate a library doesn't have a cost? (compared to forking).

Of course it does, but again: it's you who controls the code, not the
library's upstream. You can easily patch and adjust whatever necessary,
without being bothered with future merges from upstream.

This aspect grows in importance as the library gives less and less benefits.
For example, I wouldn't hesitate to use Flask or Django for a web application,
but I would think very hard what good is going to give me logging library
other than Python's built-in.

> I find that using tools like npm, nuget, gems, and the like along with github for core libraries makes managing dependencies FAR better than relying on an internal copy of said package in my project

npm and gems give you dynamics very different from seeing dependencies by
yourself. You see dependencies as very cheap (which is not true, it's just the
cost is hidden from you), so you don't bother with thinking if you really
need the new dependency. If it can shorten your code by twenty lines, you
see it worth.
> I'm not convinced that targeted advertising even works.

Yes, your intuition derived from a single anomalous data point (yourself) is definitely more accurate than the companies which have seen demonstrable success from targeted advertising.

If you wanted to argue that brand advertising doesn't work, I might agree. Brand advertisers tend not to have high standards of data analysis.

Your publisher experience seems to actually be a case of wanting the former (targeted advertising) but getting the latter (brand advertisers), which can be a real problem because brand advertisers often overspend and undertarget.
Auto companies are lacking key ingredients for the future of the automobile
All I say want to say is we need open protocols (and standards), period. We need choice. Those who want to create wall-gardens are free to do so but we need open protocols and educate users and developers about how important they are. RSS, XMPP and others are used everyday, even by corporations so eager to user proprietary ones for their to keep their users prisoners.
I wonder how much of the "Frenchness" of the attacks that Paris has experienced is to do with Syria being post-WW1 French mandate?

I suspect not much - but part of me does wonder why they're the main EU country involved in the conflict.
is this the same stuff Top Gear did couple of years ago as one of their special? that was an inspirational episode indeed
Right. This is what you get if you search Google for Hotmail (as millions of people do): http://imgur.com/CJpskkz

Is that Hotmail, Live.com, Outlook.com, or Microsoft?
These Gears Really Work (2010) [video]
I don't understand this post at all. He started with wanting compile time validation of the invariant ("A wizard cannot wield a sword") - then talked about how runtime solutions were not good and then ended up with a solution that does not verify that invariant in compile time at all.

He just ended up with a language where all code is written in a specific language programmers have to learn and errors are in another language.

The generic constraint solution he had in the middle (part 2) was actually pretty decent because hey: if Wizards and Warriors can't yield the same weapons - and the weapon is a property of the supertype then __they are not interchangeable as players__. You need a different interface.
A Brief History of Chat Services [pdf]
Interesting. It would be great if it can be integrated with bash/zsh without installing Node.js.

I think you opened up server's root access to HN. You should use sandbox environment for such experiments.
But when the day comes that SDR's which can transmit from 0-10GHz are in every device you buy, all the FCC will be able to do is rubber stamp these devices as 0-10GHz SDR's, which are actually very capable of severe interference:
https://www.youtube.com/watch?v=CXv1j3GbgLk

The reason they want to regulate the software is because regulating the hardware is soon not going to be sufficient.

Hopefully one day we can use extreme versions of beam forming (e.g. the pCell) to replace the need for RF regulations and switch to space based multiplexing as opposed to frequency based multiplexing.
Sorry to be pedantic but I presume you're not a native English speaker? 'Joyable' is not an English word, but rather the name of a startup company[1]. Perhaps you're looking for 'joyful'. 'Checkout' when spelt as one word refers to the place in a supermarket where you pay for the things in your basket. When you ask people to look at something, it's usually spelt as two words (as in 'check this out').

[1]: https://joyable.com/
Hi lmeyerov, I'll reach out by emailing you on GitHub or via graphistry. Unfortunately, I won't be able to use anything proprietary in production. Also I need solutions that are self contained executables and capable of scaling to several billion nodes. External APIs are a no-go. That said I'm happy to talk as it looks like y'all are doing cool things :)
Which Browser Is Really Holding Back the Web?
Is this article a joke?

Suppose for the sake of the argument that instead of drawing an arrow from the consumer to ad tech, I drew an arrow to... any other market.

Couldn't I make exactly the same argument?

People pay a "consumption tax" to fund every part of the products they buy.

That money flows into the pockets of myriad companies with intricate supplier/client links.

Investors pour money into that market and create new companies hoping to make money back on their investment.

That happens when their investment manages to get market share by "cannibalizing" competitors.

Some investors lose their shirt. Some companies go bust.

My question is: so what?

It seems like there's little more in the article, not to mention the complete absence of any numbers to back the claims that are made or give a sense of scale.

So my conclusion is that what the author really wants to talk about is how these bad companies own private data, yadda yadda. Nothing new here.

So I guess the author is just doing this to push his own ad-free product.

Inception.
site down, found this: https://github.com/askucher/nixar
How can there be an oversupply?

All increased supply does is drive down prices. At lower prices, there is sufficient demand to meet supply.

You're right that this is driving low-volume suppliers out of the business, but the world doesn't owe you a business model.
I think it is easier to do frequest statistics "ok", then to asses whether your priors are going to be any good. Especially when looking at systems we don't really understand very well.
With the recent discussion of FastMail shutting down their XMPP chat server[0], I thought it'd be interesting to share the history of chat services that sameroom.io just sent out in an email.

Doing a ctrl-f/cmd-f for "XMPP" on the site only shows 6 matches, which says something about the lack of adoption of the standard. Not to imply causation through correlation, but it would indicate that the XMPP standard is lacking, seeing as everyone creates their own/uses another standard instead.

[0] https://news.ycombinator.com/item?id=10572597
Lightning Memory-Mapped Database Manager (LMDB)
Well, Google is not called 'notYahoo' or searchThatDoesNotSuck.

So that's all I'm saying.

I used to do it a lot, so maybe that's why I bother commenting.

Mainframers sneer at Unix.
Unix people sneer at Windows.
BSD people sneer at Linux.
Plan9'ers sneer at Solaris.

It's just so tiresome and negative.
Modern Java – A Guide to Java 8
Just for the record, we are also working on a next-gen XMPP client, with decentralized blogging, file sharing, end 2 end encryption and all, and planing to do an Android port. Other projects like Movim also do similar things too, XMPP is definitely very alive these days.

Sending message to other devices is managed by message carbons which is in last call for being a standard XEP, and support is becoming more and more common.

XMPP is all but deprecated, very active, working well, with a large ecosystem. But is really badly known by most of people(I have by the way started a series of article to explain it: http://www.goffi.org/tag/talk_xmpp).

It's really difficult to be heard these days, but there is a new wave in XMPP world (check our project: http://salut-a-toi.org or movim: http://movim.eu).
Is there a necessary skill set for TDD?
The original article which this one refers to is quite an interesting read as well:

"Twelve Ways to Fool the Masses When Giving Performance Results on Parallel Computers, D. H. Bailey, 1991" http://crd-legacy.lbl.gov/~dhbailey/dhbpapers/twelve-ways.pd...
I'd say the analogy is more valid than you think. Classical (frequentist) methods are valid as long as the results correspond to the relativistic (Bayesian) ones.
What would be the "high experience level" alternative?
But the implication is that the price of each new bitcoin must be a fraction of the total runtime of computing power on the planet.

Let's say all financial transactions now appear on the blockchain, and every ten minutes a new block is mined.
And furthermore let's say all the compute power of the world is on grid aka E3. And hiring the whole lot will take a credit card with 1 million dollars per ten minutes

To Dr Evil, The value of controlling that chain is immense. And he would be willing to pay half a million dollars to write his adjustments to the chain

The 25 bc handed over for that surely has to then be equal to that half million plus a tiny amount, otherwise Dr Evil will be willing to pay for half the worlds compute resources but good actors would not.

Can we then assign a rough value to Bc now? And is the distribution of assets fair?
So an Assasin that takes his own initiative on who to Kill is democratic :-)
Why bother with it at all? Authenticated database sounds like.. postgres.
In Ada you just annotate a procedure as being an interrupt handler and it Just Works.

In addition, you can annotate a protected object (essentially, a group of shared procedures protected by an implicit mutex) as being interrupt-safe, and then any access to that object will be automatically protected by the appropriate instructions.

Plus, if you're in a Posix environment, you can use the exact same mechanism for interrupt handling. It's all remarkably elegant.

Alas, like everything Ada, the documentation is opaque in the extreme, but:

https://www2.adacore.com/gap-static/GNAT_Book/html/aarm/AA-C...

Note that at the bottom they're defining a parameterised interrupt handler structure and then instantiating it multiple times on multiple IRQs, each of which is in its own isolation domain...
Ah, that is exactly the case, I have one for 'business' and one for 'private' stuff. Thank you for the clarification, it was quite a confusing situation because you ended up in an endless merry-go-round.
He looked at faucets a few months ago, then stopped. What does that sound like to you?
Origin Markets: A Fintech for Corporate P2P Borrowing and Lending
That isn't quite a bubble, in fact, what you're describing happened to broadcast television advertising and online ads. If people shifted their attention from online to something else, advertising (and thus startups) would follow.
You can install cydia ipad 3 iOS 9.1 on your apple ios devices
Does two datapoints help?

As far as the success is concerned, the advertising company is hopping from one aggressive technology to another mostly because their techniques work but only for a while and then users tune out. So it may be that WB has a point that is rather stronger than you make it out to be.
All Your Favorite Songs Are the Same Song (2013)
Well, unwillingness to hire men as nurses is hard to attribute to greater criminality. Much heavier criminal sentences for men seems more on point.

Early male obstetricians (really, doctors who started researching childbirth) were not well thought of by midwives. Could you elaborate on the special sense of "universal discrimination" you're talking about?
Instead of thinking of the difference between targeted and untargeted advertising as a shotgun vs. sniper rifle type of situation, you should think of it as a sawn-off shotgun vs. regular shotgun type of deal.

Targeted advertising does in fact work. I know this because I work for an ad company, and it is very clear in both click- and conversion-rates.

The product specific level of targeting you are talking about, might be feasible for amazon... might be. But it isn't for our company since it is relatively difficult to maintain the segmentation and targeting rules required for it to work. The ROI is simply too low.

There are lots of other easier targeting options with a proven effect such as, frequency, geo, audience segmentation, site/product segmentation (such as the retargeting campaigns you have probably experienced), predictive behavioral targeting, and so on.

We typically see 1.2 to 2 times as many clicks on campaigns using a mix of the mentioned targeting options above, compared to campaigns with no targeting.
I am more than a bit confused - hope someone here can clarify.

I have 11000 pictures under https://plus.google.com/photos/yourphotos. Not that I care much about the storage/editing part: I do all my editing on my desktop, and I store original and edited pictures locally, with tagging, date-sorted directories etc.

What I do use Google+ for is to create posts with galleries. Typically if I go somewhere interesting I put online a series of pics for my trip, to share with family and friends, I post them as "Public" and then link to each individual gallery from my personal webpage (so I don't have to store these on my site).

So the question for me is: what changes in terms of "creating posts on Google+ with a bunch of pictures associated to them"?

Will this still be possible? Can I just upload pics like now, or do I need to use the new Google Photo app?
How did you guys start working remotely? Or did you work remotely from the beginning?

I would like to try but I see it difficult for a company to hire someone remotely who has never worked remotely. Catch-22 anyone?
Give your kids more hugs to make them better leaders
What I really detest in Amazon Adverts, is the tracked adverts for stuff they wont sell to me. I live in Switzerland, and some things I can order at amazon.de, others not. I often only find out at checkout which it is. So lets say I want to buy an SSD, I shop at amazon.de, find out they won't sell/ship it to me. Then for a month I get followed by amazon adds for that SSD that they wont sell to me.
Your considerations may be true but there is simply no denying that there is some serious hypocrisy going on at the core of our value system. We fume when muslim terrorists bomb Paris, but we claim the right to bomb pretty much any muslim country whose government is not laying in bed with the West. The fact that we make some half-assed efforts to avoid "innocent" victims is no proof of moral superiority. The next time NATO blows up some wedding party in Afghanistan, I'd like to see the flag of Afghanistan projected on the opera house of Sidney.
OK - but /why/?
It works very well on me. Since I have rarely headaches, and if yes, there is always a good reason for them. Usually either big hangover, or exhaustion from long and intense effort in mountains, ie climbing Matterhorn 6 hours straight no stops, or similar effort on Mont Blanc that took 11 hours, both coupled with drinking too little/sweating too much -> dehydratation. Just drinking plenty afterwards doesn't remove headache, just makes it a bit less intense. I pop the pill, and in 20 mins it's over.

Maybe if causes for your headache are different, the effect might not be so quick & effective.
Remix (YC W15) is hiring. Click for details
YC was one of the best things to come out of Yahoo... Imagine, if Yahoo had not bought out PG and company this whole thing would have never happened. Yay for the bubble, and apparently even Ponzi schemes can have beneficial side effects.
> The authors of the paper assert that we are now in a culture that valorizes victimhood.

An interesting observation. I have never thought about it that way before, but it seems plausible. What do others think about this statement? (Please make sure you read the context, though...)
Ask HN: Enter market with a well-funded competitor?
Hi HN, i am just looking for a quick unbiased opinion.

Without giving too many details, a few weeks ago a friend of mine had an idea for a SaaS application, targeting a market of small to medium sized companies in a variety of industries.

After some research it turns out there is already a company doing this and they are set up pretty good 300k+ funding, 8 team members, decent sales network and have been around since late 2013. However, we think their product is rather shitty.

We both have a technical background and we are sure we could get a MVP together that is at least on the same quality level as their product within 2-3 months (coding in our free time).

This would be our first entrepreneurial adventure, but i have worked in several startups as a developer before, so i know the mindset and have a pretty good understanding what we need to prioritise.

They have a big headstart but we believe the market is large enough for two or even more competing companies.

So, should we give it a shot? Any advice is appreciated
Looks really nice from first glance, would need to give it a try for a week or so to see how it really fits in my workflow.

>In daily life I need work linux shell and got the understanding that this kind of library can be applied in shell as well. S

Then why not sticking to unix command names? For example my most used command on linux is "ls", which in nixar is "fs" for some reason. Am I missing something?

I would try to get it to be as close to unix commands as possible, if you really hoping to achieve linux shell feel. And it would be really easy to jump from linux machine to it.

What would be nixar's selling point? Why would users choose it instead of cygwin or minGW?
> I know this because I work for an ad company, and it is very clear in both click- and conversion-rates.

Which are, over time steadily dropping. Even simple non-aninmated banner ads used to have a high click-trough and conversion rate, higher than the best and most aggressive campaigns today.
Indeed. Although they should have said:
Goodbye +Google+ Photos, hello +Google Photos!
but then it would have been ridiculous, wouldn't it? :P
This looks like a really cool project, but is not quite what I'm looking for. It adds some good new features, but also kind of seems to cripple Go a bit? No goroutines, no channels no multiple return values, no slices, no maps, not even optional static typing.
Precisely. I wouldn't care if it was 0.01% of the "developers" in WordPress. But when it's the vast majority, actual developers become a limited and hardly visible minority.
Was he being serious or just trying to score some sympathy of Jews and Christians?

Nobody has ever found any evidence of Exodus and it isn't like people aren't trying.

https://en.wikipedia.org/wiki/The_Exodus
I google that and this was my third result.

http://www.gcflearnfree.org/internetsafety/6/print

Topic 6 talks about it. So simple.