skysight-inc/HackerNews huggingface dataset:
Alright, could you help me understand what type of data it is that you purchased from ebay? And what type of strategy you're using, at the highest level? Are you trading equities? Derivatives? Can you at least tell me how long you typically hold a position?

I'm not interested in your actual strategy, I just want to understand what you're doing categorically to see if there's any way it can possibly work instead of being attributable to a bull market. You should be able to talk about the type of strategy this is without discussing the actual signal(s) key to the strategy. This is just becoming kafkaesque for me. I'm legitimately shocked no one else has asked you about this just out of basic curiosity about how you arrived at your current methodology. You mentioned Flash Boys and tick data...but HFT is not the only paradigm for which you'd use tick data.

I'm trying to give you the benefit of the doubt here but from my experience none of what you're doing makes sense. You have to understand that the reason I'm giving you so much flak for this is because you're repeatedly recommending people buy financial data from ebay, you're being cagey about why your recommendation is sound, and your recommendation is utterly alien to the way in which people professionally trade using historical data.

If your data from ebay is actually, somehow reliable, then fine; but if it isn't, recommending it for people who are looking for actionable data is irresponsible.
One of the linked articles has some more technical details on how non-invasive blood sugar measurement works (for the GlucoWise device currently in development):

The glucose levels are extracted by a non-invasive technique which transmits low-power radio waves through a section of the human body, such as the area between the thumb and forefinger or the earlobe. These areas have adequate blood supply and are thin enough for waves to pass through the tissue. These signals are then received by a sensor on the opposite side of the GlucoWise device, where the data about the characteristics of the blood within the flesh are collected and analysed.

The other non-invasive technique that has received a lot of press is, of course, Google/Novartis' contact lens. That device measures blood sugar from tears.

Most other blood sugar measurement systems require either blood draws from a pin prick or a sensor attached to your body that measures sugar content in the subcutaneous fluid as a proxy for blood sugar.
In the meanwhilr, I've veen using java 8 features on android fpr more than half a year by incorporating jack into the build system. Now this is incorporated by default and jack is no longer needed. So I'm perpetually surprised when people mention "stuck at java 6" on hn. Have you guys no first hand experience on the platform? Just chatting?
How fake are nature documentaries?
Future of Trucking Event – This Is Awesome
Well, crypto markets have much better odds than the lottery right now. Even without understanding the nitty gritties, if you just diversify in the top 10-20ish coins, and set sensible stop losses, you are in a very good position to come out ahead.
I'm not particularly convinced by those surveys you mention, though. My impression is that the advertising industry is more about maintaining the fiction that their efforts work.

Especially on-line, where I had the opportunity to see how the sausage is made. The axiom of on-line advertising is that you have metrics that tell you whether or not what you're doing works. Except what I've seen is marketers who lack even most basic understanding of maths convincing customers that this number going up means advertisements are working, and since customers have even less clue, everyone is happy and money changes hands, regardless of actual outcome. Even software made by marketers for marketers is optimized for taking wrong conclusions from the data[0]. But as long as the fiction works, money flows and participants are happy.

--

[0] - https://news.ycombinator.com/item?id=10873226
Just consider Apple as yet another lab of optics experts, but with 100x the funding, 10y of material science advancements, and years instead of months of dedicated effort. It's not that hard to believe that this team could finally succeed.
Public meeting in SF tomorrow on the future of the Clipper Card contract
>I bet you still wouldn't be happy if someone violated CC BY-SA or Expat/MIT licensing, and didn't even attribute to you. Thus, copyright still serves a purpose to you, and even for the minimal set of actions you want, it needs to be enforceable.

Happy? No. Unhappy enough to pursue legal action? Hell no.

>I agree that copyright law, as it currently stands is usually mostly about screwing the little guy, in favour of some big corporation in perpetuity, but that's a separate argument to enforcement which should apply equally to all works, including yours.

True. I'm not arguing completely against copyright law, I just wouldn't sue someone for violating my license =P
I know, but the effects of keeping it for so long will still be felt for a very long time.
It's pretty non-traditional, but: in my spare time, evenings and weekends, I wrote a couple of bad novels. This took a long time. Then I took time off between contract jobs to write a good novel. Then I sold the novel, and got a couple of subsequent book deals, enough to spend six years as a full-time novelist, which was pretty great. Then I parlayed that into magazine journalism.

I eventually went back into software -- writing is not great for one's bank balance unless you hit it extremely big; my gross income is now more than triple what it was during those years as a full-time writer -- but I'm still an occasional journalist and even more occasional author, and those were an excellent six years.

I think the tl;dr is to try to turn what you enjoy doing in your spare time into your secondary profession.
I think this idea is pretty odd. If someone had a cure for diabetes, you'd bet they'd charge an arm and a leg for it. The patents alone would be incredibly valuable.

From a non-monetary standpoint, dehumanizing companies is always a bit frustrating. They consist of people, like you and me. Most people aren't sociopaths and the idea that business leaders are entirely sociopathic is worth challenging. I don't think most people would want to withhold a cure for recurring revenue. Charge for it, yes, but not withhold it.
They already lied with Enterprise. What indication is there that LTSB editions won't suffer the same fate, if they haven't already?
Couchbase Mobile is open source. Couchbase only provides the data platform, but is significantly more sophisticated at it than Firebase. Firebase offers many other services, so you can't really make a direct comparison. In simple terms, the way I think of it, Firebase goes wide, offering a package with many elements, while Couchbase goes deep on one area, the data platform. (FYI I work at Couchbase.)
> What does that even mean?

It's actually a pretty simple concept. Humans need particular conditions to live and flourish. We want to maintain and improve those conditions.

Nature is damn big and complex, but it's not beyond the reach of our influence.
There is an Anko for Kotlin, that is much more mature and was before Litho
Why does one use `font-weight: 200` for code?
We all function differently, let me give you an example.
There's the kind of people that don't need much help doing things, they don't need advice or productivity tools, or reading motivational articles that are actually only an excuse to avoid starting things.
These kind of people will tell you that if you really want to do something you won't need to spend your life procrastinating, because if you want it so much, the energy to do it will come out natural. This might not have happened to you because you haven't found the right thing to create. But not everyone is like that, not everyone knows what they should be prioritizing. Some people need inspiration, for these kind of people I would strongly recommend collaborating with others. Work with others, get inspired by commitment and sharing ideas. For some people the problem of not having energy to create things is related to not having small social rewards that keep you going like fuel. Energizing by others is important and will get you going.
Why would machine learning be able to overcome a lack of statistical power?
UK newspapers are uniquely awful, and the Daily Mail is among the worst.

It's not the "lowbrow" that's the problem.

It's privacy invasion stuff like this: https://twitter.com/MalwareTechBlog/status/86593783564328550...

Or the amount of successful complaints to the regulator: http://www.newstatesman.com/media/2013/12/man-who-hates-libe...

> In the files of the Press Complaints Commission, you will find records of 687 complaints against the Mail which led either to a PCC adjudication or to a resolution negotiated, at least partially, after the PCC’s intervention. The number far exceeds that for any other British newspaper: the files show 394 complaints against the Sun, 221 against the Daily Telegraph, 115 against the Guardian.

Or, as the UN said, the unique and hateful focus on immigrants: http://www.unhcr.org/uk/protection/operations/56bb369c9/pres...

> Overall, the Swedish press was the most positive towards refugees and migrants, while coverage in the United Kingdom was the most negative, and the most polarised. Amongst those countries surveyed, Britain’s right-wing media was uniquely aggressively in its campaigns against refugees and migrants

[...]

> In contrast, coverage in the United Kingdom was the most negative. Despite the presence of newspapers such as the Guardian and Daily Mirror, both of which were sympathetic to refugees, the right-wing press in the United Kingdom expressed a hostility towards refugees and migrants which was unique. Whilst newspapers in all countries featured anti-refugee and anti-migrant perspectives, what distinguished the right of centre press in the UK was the degree to which that section of the press campaigned aggressively against refugees and migrants. This could be seen in the preponderance of negative frames and the editorialising in favour of Fortress Europe approaches.

Or the really creepy sexualisation of children: https://www.youtube.com/watch?v=r9dqNTTdYKY

The printed paper is different to the website too. It's possible to use the website without seeing all the worst bits of the DM.

All of this just makes it really worrying that they're so popular.
Upwork and various sites like it have plenty of people making way above minimum wage. You have to spend some time sorting through the nonsense, but it's there.

If you're in North America, speak fluent English, and you can actually program, steady jobs in the $20-$30 an hour range are easy to find. (note that if you're a decent developer living in North America, I wouldn't advise working for those rates unless you have a specific reason to, e.g., you want easy jobs that are easy to find or you really need money now.

Living in Melbourne it might be a bit harder because of the time zone difference you lose a bit of the advantage North American developers have over eastern Europe, India, and other low cost of living countries.

I still think it's probably doable.

There are jobs on those sites paying decent developer wages as well, but those are harder to come by. I did a bit of work on Upwork and other sites before I started finding work through the Hacker News find a freelancer and upped my rates to $100 an hour.
Sublime text!! I use it all the time
Choosing your payment methods to maximize your conversion rate
Hmm I don't know enough about Datomic/codeq.

Data storage for a demo of something like that is not really hard. Something as simple as a json object would work fine.

One hard part is to make it tolerant of incomplete/invalid objects.

If it's sufficiently tolerant you could make it look very similar to a normal text editor but it would have magical powers under the hood.

You could do all sorts of cool text-editor-like features but because you have a much richer object under the hood you could be much more magical.

The concept of "file" stops having any significance. You'd think in terms of your domain logic and program objects.

So your sidebar project tree could be organised arbitrarily (not dictated by the file system).

You could do fancy keyboard shortcuts. Imagine with key up/down you navigate around a list of objects that are highlighted (like functions). While the function is selected you'd press "d" and bam out pops the function documentation (because documentation would be an attribute of that function and tightly attached to it).

You'd type "h" and see the entire history of that function from day 1, who created it who worked on it, etc...

"r" and it asks you for a new name (name could be a phrase like "login the user into the system" because no text-parsing).

When you enter an entry is added to the history of that object (it has a unique id) "[timestamp] greenyouse renamed this function to 'login the user into the system'".

Then imagine the possibilities for CI/CD.

You could have constraint-based deployment and integration.

For example if any objects in the program tagged with 'security' have been created/modified/deleted you could require stronger code review sign-off etc...

You could "query" the diff of a software revision and do stuff based on that. For example all your "SQL query" nodes would have a pre-determined type.

So when a new revision is pushed you could tell if new SQL queries have been introduced in the system you could notify the database team "Revision #458 has introduced the following 3 SQL queries (click to view)".
Ford Motor Is Replacing Mark Fields as C.E.O
Loved this response. I love the non-trad roles evolved from engineering.
The cyclist should have been on the right side of the left lane rather than the left side of the right lane, that's true. But watching this, I'm not left with the impression that that would have made the slightest difference in this accident. The cyclist was clearly moving too fast to make the right turn; if the motorist had registered him at all, they would surely have waited.

The strangest thing about this video is that there's a considerable gap in traffic before the cyclist arrives at the intersection; the motorist had plenty of time to turn in front of him. I think the motorist had to have been drunk or texting or something; it almost looks like they intentionally waited to hit him.

I try to ride my e-bike very defensively -- and indeed I've never been hit by a car, though I've had a couple of close calls -- but I'm not at all sure I would have avoided this one.
Sure it can. The number of tricks you have to do to a video to circumvent the content ID system makes the video difficult to watch. For example, you have to stretch the audio by some percentage or else the audio fingerprinting will ID it regardless of your filters.
Warning for those with sound turned on. The website automatically plays music at full volume.
Also, withholding cure for a big disease is not necessarily a stable equilibrium on the market - the first company to release such a cure would mop the floor with their competitors.
Apple appears to be working on blood glucose monitoring as a way to address Type 2 Diabetes.

Either the article is very wrong, or Apple is doing something very cute here.

Type 2 diabetics do check their blood glucose -- occasionally. For non-insulin-using diabetics (aka. most type 2s) medical plans typically cover less than one test per day, because the evidence is that testing more frequently doesn't accomplish anything. (Blood glucose testing in T2D basically answers the question "is the treatment working, or do I need to talk to my endocrinologist", while blood glucose testing in T1D is essential for answering the question "how much insulin should I inject right now".)

So the idea of a continuous glucose monitoring system for type 2 diabetics is pretty much nonsense from a medical perspective; sure, they'll get pretty graphs, but those graphs won't provide any medically actionable information. So my first instinct was to think that the article was very wrong.

But maybe Apple is being very cute. The reason we don't have any non-invasive blood glucose tests is that nobody has managed to make them accurate enough to meet FDA requirements for tests to be used for diagnostic and treatment purposes. But if Apple markets this as being for type 2 diabetics... well, they can perfectly reasonably put a sticker on the box saying "for entertainment purposes only", since that's the only thing type 2 diabetics would be using a continuous glucose monitor for anyway! FDA requirements circumvented -- and once Apple gets a large installed used base, they get a huge pile of data which they can use to help them develop a later version which is accurate enough.
I found flights to Palma on flychecker at 50 €
Hah, funny, I did a double take when I read the article, but couldn't see the typo (my brain just knew something was "weird" about the word.) Thanks for solving that mystery. (For reference, I lived in Brazil for several years.)
Ask HN: How do you change your process to build data science based products?
Hi all,

My question is for those of you that practise XP in your team/company

What are your experiences building data science based products in an XP environment?

Do you adjust your process when building a data science product?
Even as a decades long 'nix user, I had never used join until recently, which joins lines of two files on a common field. I used to turn to fgrep or a Python script to solve a whole class of problems join can help solve on the command-line.
and a large part of Kotlin's inspiration is directly copied from Scala (data classes, val, var, pattern matching, sealed classes, type param on right, tuple destructuring assignment, type aliases, etc., etc.).

It would be far more accurate to say that Swift took inspiration from Scala (and Scala from ML, Smalltalk, Haskell, etc.)
> If you cure them, no more cash

This is pretty shortsighted. Because:

- it's not like you would cure everyone at once anyway

- there are always people who will develop the disease eventually so you can always make money in the long run

- if you are the only effective treatment you can pretty much make the price you want, and collect massive profits that can be invested in the develop of other drugs or solutions.

Never heard of vaccine companies going bankrupt, for example.
I think you've got it. The part about normalization across the entire dataset implicitly including information is by definition true (it contains, at a minimum the true min/max). Can't speak to the rest, though, as I'm still learning myself... :)
So the oxford international film festival has only had one music video of the year ever? As I said we don't know what year he won.
It's not clear whether there's actually a lack of statistical power, or simply a lack of sufficient modelling of the noise.
Major cities may have densified from the beginning of humanity until downzoning; it doesn't follow that they will continue to do so. We're not talking about living in the woods here; there are plenty of third-string "cities" with cheap real estate.

>Are you gonna make play remote too?

Especially among SF tech workers, play mostly consists of leaving the city for nature sites and hiking/camping/climbing them.

>Dating?

Small cities and towns reproduce at a much higher rate than elite coastal cities. Some of those matches may have been made in college or while working in big cities in early adulthood, but the educated reproduce less. So, apparently yes.

>Art?

Hollywood, television, audio reproduction equipment, the Broadway tour, the music tour, and traveling exhibitions between art museums made art remote. Small, cheap cities often have thriving (though less nationally famous) local theater, ballet, symphony, and opera, as well as visual/performing arts venues capable of receiving more prestigious national tours.

Smaller communities may even have strong community/educational theater traditions and spaces, which while not exactly High Art, are a lot more personal and participatory than anything you'll pay $200 to see in Manhattan. Theater in small cities/suburbs is unique among the art forms in that average people get to work on reasonably high production value projects and present them to their peers and families. Tight real estate markets can't allocate so much space to amateur performance, and it's easier to put an awesome lighting rig in a high school auditorium when you don't have a homeless population.

>Dining

I guess the dining culture is more about what you cook, who you cook it with, hosting potlucks and BBQs and dinner parties in your enormous house and backyard, etc.

>Music?

Any tour that passes through the likes of San Francisco will pass through the likes of Milwaukee, and if not it'll certainly go to Chicago, an always-fun and usually-accessible jaunt from smaller Midwestern population centers.
well, i want to imagine a world where i've got a solid gold toilet but it ain't gonna happen.
This is a nice piece of work and still relevant. The source is available:

http://www.cs.columbia.edu/~orestis/vbf.c

It has very high throughput for L2-resident filters, as long as most queries return "false" and you can use a bulk API. It was, IIRC, about 4x faster than a hand-made "horizontal" SIMD Bloom filter, and 20x faster than cuckoo filters.

By "horizontal" SIMD, I am using the language of a follow-up paper by the same team at Columbia, "Rethinking SIMD Vectorization for In-Memory Databases", http://www.cs.columbia.edu/~orestis/sigmod15.pdf, http://www.cs.columbia.edu/~orestis/sigmod15source.zip. In that paper, they call "vertical" SIMD for hash-based containers "process[ing] a different input key per vector lane". "Horizontal" SIMD is putting the same key in each lane.

I suspect the results in this paper could be improved with more modern gather techniques on newer x86-64 processors.
I hate bullet point summaries in news stories, they're distracting and add clutter. They should at least be hidden and only viewable when clicked.
The car on the right is actually waiting to turn left onto the main road.

I agree the cyclist should have been in the left lane, though as a cyclist I also understand why he wasn't, but seems to me it should never surprise anyone when another vehicle continues in a straight line at a constant speed, notwithstanding the road markings. He was clearly not going to make the right turn; he was going much too fast, and made no movement in that direction. I think if the motorist had seen him at all they would waited for him to go by.
I thought it started with the for for a second there.
Yes, I did. And followed the links in the Tweets. The article suggests that it's possible that the buy box winner is out of stock, whilst at least one seller (Amazon or a third party seller, e.g. the publisher) is in stock. The tweets don't assert that. The links and screenshots referred to by the tweets also demonstrate no such thing.

Specifically, regarding the tweets:

- One of the links is to an Amazon page. The winner of the buy box when I open the page is 'In stock'

- The other link is to a HuffPo article, which contains some screenshots. The screenshots include buy boxes, but none of the screenshots show a buy box that's been won by an out-of-stock seller.
Well how should we exchange information then :)
Actually not, since these GNU tools could be used on BSD as well.
So, I search for "teredo group policy" and here's the second link I find, a TechNet article with detailed screenshots about how to disable IPv6 via Group Policy, which is one of the things he talks about:

https://social.technet.microsoft.com/wiki/contents/articles/...

It shows how there's an Explain box that describes what the various settings do.
Or you could simply use Linux.
Fun puzzle: array indexing is associative
WWE SuperCard Cheat Hacker
It wouldn't, but maybe there is enough statistical power, but it's just tricky to process?
With WSL (and cygwin) this could be windows utils you may not know.