skysight-inc/HackerNews huggingface dataset:
> If you want to evaluate how good a teacher is, one of the things you need to measure is how well their students performed vs. how well those same students would have performed under the hypothetical average teacher.

But underlying this assumption is that you have a good measure of student performance in the first place -- or that such a measure can easily be crafted. It's questionable if it even makes sense to quantify a student's abilities into a single catch-all number.

But even if quantification of student performance makes sense, it becomes problematic when it becomes high-stakes (i.e. teachers' payment or school funding depends upon test scores). The problem with tests (or any other metric tied to incentives) is that they are gamed over time; SATs become increasingly meaningless with the cottage industry of test-prep; and so do standardized tests become increasingly meaningless as teachers are incentivized to teach directly to them. (In politics, crime rates are gamed, jobs rates are gamed, etc.).

Were schools so terrible before standardized tests -- when administrators and other educational experts rated teachers? There were existing non-mechanical rating systems that of course predated standardized testing -- is it necessary to mechanize evaluations simply because we like the superficial illusion of objectivity, even if that objectivity bears no resemblance to the thing we are trying to measure?

Or even acknowledging that perhaps existing non-mechanized teacher performance measures may have been flawed, have standardized tests somehow improved schools? No, probably not -- teachers and students both are more miserable and are increasingly tied down by the requirements of possibly meaningless tests.
I actually made this! The hardest thing was to hand-solder the wires onto the SMT LED.
If the clocks get good-enough, then yes, They'll keep getting better.

To do it with a pair of clocks, there's a long way to go, as they measure differences in depth in a gravitational potential. If you change your distance from Earth's center by a meter, your gravitational potential will change by 9.8 m^2/s^2. If somebody heavy (100 kg) and spherical (I'm a physicist) stands a meter away from you, your potential will change by 7 x 10^-9 m^2/s^2. In short, the clocks need to get ten million (they can see a 1 cm height change) times better to sense a nearby person. Clever trickery with an ensemble of clocks will make that easier, but not by 10^7.

Not impossible, just hard. The fact that the time/frequency teams have encountered gravity, in particular through the gravitational potential, has just made their lives quite a bit harder. They now need to know a lot about the relative locations of other clocks and the mass distribution within the earth to make substantial strides forward. It's an incredible feat to have gotten to where they are, and a major challenge for the future.
...one of the major features of this announcement is support for third-party e-mail providers.
I'm not merely implying it, but saying it outright: but with the qualification that it is true in "people who have a certain mindset".

People who have a different mindset from that one find religion inspiring.

It's nice for others to have something that is more in line with how they think.
Do we have any evidence that they aren't? The only people I personally know who have moved there are fresh college graduates.
I heard you guys on Bitcoins and Gravy today...I really like the social justice aspect of your Bitcoin Payroll. I can't wait when you guys release Real-Time Payroll. I totally agree with your statement re: those who are abused by the Payday lending industry--they will now have a viable alternative!
Many of the reasons why every value-added scoring system in use is terrible: http://garyrubinstein.teachforus.org/2012/02/26/analyzing-re...
Yah, I'd flip out the art assets with whatever you can find with an open license to avoid copyright issues. (for example: http://opengameart.org/ )

"Let's make a Mario clone" would bring in the same audience.
Ask HN: What are the best light-weight CSS frameworks?
Wow... forget dog, I guess nobody on the internet knows if you're an Iranian nuclear engineer.
For now. Time will tell. They will never pay off the debt.
I don't see any mention of c++ being compiled to javascript. Without that, this seems to be server-only, not full stack.

On the other hand, there is Google Web Toolkit which lets you write both client and server code in Java, which is very close to C++ in performance, and compiles the client code to very efficient javascript. (CSS is also compiled into being very efficient.) http://www.gwtproject.org/overview.html
I did some searching, and apparently there are three levels of contesting an SFMTA ticket.

1. You submit your objection to the ticket and supply supporting evidence, and they accept or reject it.

2. If rejected, you can try again at an administrative hearing.

3. If that fails, you can go to Superior Court.

Only #2 and #3 require the presence of you or a representative. Presumably, Fixed works at the #1 level only.
Honestly, I'm a huge fan of Hangout's iOS UI - Android, not so much
You're the one whose bad patches were rejected, you just dug through a year's worth of my comment history, and you're constantly and heavily promoting a terrible-design-and-still-no-beta-even-after-a-year-and-a-lot-of-donated-money fork of someone else's open source project ...

... and I'm the one with an axe to grind?
At that point you're moving from bureaucratic processes to legal ones, though, and the expense skyrockets because of requirements for things like bar certifications.
Yes, but they seem to have given up on organizing the world's information.
This is awesome! I wish somebody had shown me this when I learned about compilers in CS. The best way I've found in learning about anything theoretical is to write the code for it.
> https://code.google.com/p/chromium/issues/detail?id=328026

Interesting. I think there is also a plugin for WebStorm to send back modification made in the style panel to the actual files. Sadly sass/less resources makes it difficult to edit CSS and have it applied back to the sass source for instance.

> Chrome Inspector -> [x] Disable cache (while DevTools is open)

Yes, that's what I use for all my projects. Also there is a "Disable Caches" option in the Develop menu of Safari.
I would assume the answer to that question is "no", because for an IMAP client there is no reason or need to send a copy of your emails or even the metadata to Google, and the shame and suspicion such a move would cause if they were caught doing it would be nontrivial. Not to mention, checking for it is not that hard.

One way to test this though would be to setup outbound filtering (see my previous commments), and to use the always-on VPN functionality on your phone to shunt your traffic through said filter. This would allow you to see if any of your emails are being exfiltrated without your knowledge.

I haven't tested this yet myself.
Car Talk was wonderful when I was listening to NPR. I had to stop listening after their abdication of duties in the 2000 election and the subsequent wars. I now understand NPR to be just a shill for our corporate government. Tom and Ray were great though.
Internet Archive releases hundreds of classic video games
> I'm not exactly sure how VAM works, but I'm skeptical that an algorithm can model something so complex.

And even if it could, should an algorithm like this be obscured from view? Should we rely on "black box" algorithms like this, or should we at least insist that, if not the code, the research behind the code be released openly so that it can be held to proper scrutiny?
> In 2012-13, 68.75 percent of her students met or exceeded state standards in both English and math. She was labeled “effective” that year. In 2013-14, her students’ test results were very similar but she was rated “ineffective.”

That sure makes it sound like the measure is unstable. If it is then, at a minimum, output for a single year should not be used by itself, but only in a rolling average with other years. It seems unlikely that the effectiveness of a veteran teacher would change that much from year to year. Given that there was little change in outcomes (no big drop in test scores) the hypothesis of the measure being unstable seems more likely.
See, the thing is, people are already trying really hard to do that. Practicing programmers, even.
> The Bekant—Swedish for “friend”

No! For anyone reading it and thinking it's accurate, it's most certainly not, and the author should be ashamed! "Bekant" means "familiar" or "acquainted".
I'm not sure if this is a Dunning-Kruger effect or not, but it sure feels like it.
http://golang.org/pkg/html/template/ - data driven, context aware (smart escaping) templates in the standard library and gobs of 3rd party libraries.
> So perhaps like cells, universes are being created and destroyed at an equal rate so that there is only one instance of it (ours).

The idea here is that universes are not being created or destroyed any more than, say, the integers are being created or destroyed. They just are.

The universes in which nothing is possible are probably the universes of the empty set, the zero-dimensional space, an N-dimensional point and such. Not much is possible in some universes which are somewhat more complicated than theses.
Coinbase.com and Blockchain.info Bitcoin Wallet Phishing Scam Exposed
It's true that you need to interact with the filesystem eventually, but the longer that can be deferred, the more complexity can be avoided.

Ideally I'd want to construct a functional data structure that describes my build process, and at the end pass it to a side-effectful function to produce a change to the filesystem. Boot appears to be side-effectful from the get-go, but perhaps I'm mistaken about how it operates?
Sam is right about "the wildly-out-of-control housing costs, which is probably the biggest weakness here right now". FYI, some Mountain View tech workers volunteer for an organization called MV Voters for Housing Diversity. See who we endorse for City Council at www.mvhousing.org, and vote tomorrow!
http://www.sos.ca.gov/elections/find-polling-place.htm

In Palo Alto, there's a similar organization called Palo Alto Forward, which I know some Palantir employees are involved with. www.paloaltoforward.com
The widget is the 'floating action button' in Material Design parlance. You're suppose to use it in screens which have a clear 'primary' purpose. In pretty much any email application, that'd be a compose email button from an inbox (or similar) view. So I guess in that particular case, it's not so much GMail taking from Inbox, so much as both of them are showcase material design apps, and Inbox just got released 'first'.
Something like this for speeding tickets would be fantastic. The assumption is that most people don't have the time to deal with appealing a lot of these violations. It would give the average person another good option if they decide to fight a speeding ticket.
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From a psychological standpoint, a server that consistently responds quickly & doesn't break is easier to trust.
My guess is that this has a performance reason
I'm sorry you're having a bad time, but you sound like you're caught up in a few delusions.

When someone gets coffee with a stranger they are "going out of their way to help". What more are you asking for in these conversations? Agreed, nobody's going to fund some random biz guy with no track record and "an idea" (my guess from your post, sorry if I'm wrong). Reading that as racism/elitism is counterproductive and most likely inaccurate.

Build something people want (get users) and the investor types you sound like you're pursuing will want to talk to you. Sure, a good resume can get you in the door, but the best resume isn't a list of stodgy institutions, it's a list of successful projects.

EDIT: FWIW, I agree that the deck is completely stacked against the poor. It is much easier to build something when you can borrow $20k from a rich uncle to live on for a while. It's much easier to talk to investor types if you're familiar with their world. But what I'm getting at above is that those things stop mattering the minute you've built a product people are using.
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Myth: Online Labor Marketplaces Only Lower Worker Wages
That is by definition what other universes are. Different rules and axioms generating different worlds.

However, is there a universe in which, say, an object that is isomorphic to number theory in this universe has completely different theorems? Like, suppose that the natural numbers are defined in that universe exactly as we define them in this one, as is addition and multiplication and primeness, but the number 25 is found to be prime rather than composite? I would have to say "no" on that one.
It's not like the issue they're dealing with doesn't exist with literally every clock in the world - it's just that we didn't have a clock that was sensitive enough to notice before.

In a sense, this is not a property of the clocks, but rather just the way nature is. We can't keep these clocks in sync at various places around the world, because the thing they measure is not in sync at various places around the world. But, we've known that for about one hundred years - what's the big deal?

nullc is right, this is a bad article.
Okay, but what is the overlap between those two groups? Are the top 1% of income earners exactly the same people as the wealthiest top 1%?
The downside of a standing desk: Standing still for long periods of time can cause permanent damage to the veins in your legs and lead to varicose veins.
http://en.wikipedia.org/wiki/Varicose_veins#Causes
Here is part 1: http://sniperinmahwah.wordpress.com/2014/09/22/hft-in-my-bac...

I found this article intriguing but much like walking into the middle of a movie and wondering what the heck is going on. Part I should be a better place to start.
This seems to be a language where there are several kinds of blocks: if-elif-else , a let-in-end, begin-end and curly braces, square brackets, and round parenthesis.

There are a few operators, with several levels of precedence, both prefix operators, infix notation, but no sign of post-fix notation like (!) for 3! == 6 and 5! == 120

There also seems to be list data type as well as strings and numbers.
'However, they found that in certain collisions, the solitons approached one another, maintained a minimum gap between themselves, and then appeared to bounce away from the collision.'

'The team found a way to “tag” one soliton by making it larger than the other.'

“In the out-of-phase case, the one with the gap, where it appeared that they had been bouncing off of each other, we still saw the gap but we also saw the larger soliton emerge unfazed on the other side of the gap. In other words, it jumped through the gap!”

Had the strangest feeling that they might have broken something...
For what it's worth, the new thing I got from the article is the unexpected idea that one could usefully measure non-time phenomena with a really precise clock, such as gravity or altitude. Definitely more thought inspiring than many other articles, in spite of the way it was written.
Eager.io – Get users for your open-source projects
its not at all clear to me that you are correct.

I'm glad that people are putting thought into the cljs build process though, to this day it is still a particularly un-fun part of clojurescript.
I'm building apps. The projects I'm currently working on are a heavy-duty collaborative task manager (think Asana), a task manager + email client (think Mailbox, but with tasks and for the web instead of mobile), and a note-taking app (think Evernote).

Before that, I worked on other apps using Ember, as well as one or two more "website-like" projects that are mostly static, but had a few interactive widgets. FWIW I think Ember was overkill for those, and I would've been better off just going with normal HTML/CSS delivered from the server and Backbone for the widgets.

Ember bills itself as "a framework for creating ambitious web applications", and I agree with that use-case completely.
Doesn't the Gmail app on iOS use a push-system for delivery? Why would you want to use EAS for Gmail? Seems reasonably (and positively Apple-like) for Google to push people into the Gmail app where they control the experience and can surface first-party Gmail paradigms more readily.

Admittedly I'm an Android user with limit experience with stock iOS mail app. Is the iOS mail app really that much better than the Gmail app?
> I could see some applications for bay usage, I would be pretty scared in the open ocean.

I had exactly the same reaction: how sea-worthy is this going to be in something bigger than small chop? I'm not sure I'd trust the design for that serious offshore work, though for a pleasure craft it looks aces.
meanwhile i just want imap/smtp access
Ah, reminds me of the old stuff this guy used to do; specifically the section named "fireflys"[sic]: https://home.comcast.net/~botronics/
Florida startup is reconstructing the physical world in 3D
None of the things you mention would have been enough to keep Netflix from eating their lunch.
One of my favorite radio shows. RIP Tom M.
in his defense, you linked to:"Please don't submit comments complaining that a submission is inappropriate for the site. If you think something is spam or offtopic, flag it by going to its page and clicking on the "flag" link. (Not all users will see this; there is a karma threshold.) If you flag something, please don't also comment that you did."
People are not engaged. They are fixated on numbers, models, and abstractions, with the assumption that the numbers, models, and abstractions have actual meaning tied to them. They don't, aside from creating more students that create more systems that define more numbers, models, and abstractions. Some of these students get pissed off and try to create the opposite.

This is why the humanities are important. You can have the soundest logical systems, with the most elegant mathematical models, and completely miss the point. People get so caught up in the minutiae of measurements that they forget to see the big picture. Measurements don't mean anything when the measurements are used to measure themselves.

I swear, sometimes I really wonder whether society has it's head up it's ass. If these systems can model 'theoretical students' under 'better conditions', then why aren't the 'theoretical student' models running the world? Oh, that's right, because there's a gigantic difference between data and theory. How do they even know what a better student is? How can anyone in their right mind, define that? How can anyone even pretend to know what a great student is?

> When I went to school, the people who made these judgments were my parents. You can't make these judgments by formula, and you can't make them if you don't know the details of each individual case.

When I went to school, I used to think my grades meant something more than being a very complicated way of validating someone else's world view, in a way that tricks everyone into thinking we've made any progress at defining or understanding intelligence at all.

> To me, the fact that so many schools are fixated on "data-driven" student evaluations means that parents are not engaged.

The parents may be extremely engaged, but they just don't know whether to call their kid smart or not. If the kid complains about the book they read because it was boring, is that appropriate? If the kid programs a calculator to do 4 years of standardized test math homework, is that appropriate? Education is doing a fantastic job at driving the personality out of people by forcing them all to sit in the same box. The parents don't know, the teachers don't know, the government doesn't know, society doesn't know, yet we all pretend we know.
surge pricing not taken into account?
Not everyone agrees about IE11, but we are trying to make it better. Better emulation is one place we could do better - I'll shill a bit and call out that we do use our Uservoice [1] to prioritize feature development, so please feel free to add your votes/ideas. I can say that some of these are already in the internal builds :)

[1] https://wpdev.uservoice.com/forums/257854-internet-explorer-...
I'm getting a little nervous that Google's apps are moving away from compact data presentation.

For me, the poor use of screen real estate was the showstopper for Inbox.

I realize I may have different tastes in which case I think the "Display Density" is an OK compromise (despite that the default is all that usually really matters).
Lollipop: el esfuerzo de Google por llevar seguridad a los teléfonos
* Not every keyboard has Page Up/Down keys. As an application designer you can't rely on their presence.

* The spacebar is the largest key. For an application, it makes sense to attach commonly used functionality to this key. For media players this is pause/play. For web browsers this is "scroll down a page", as you'll need to scroll down when viewing pretty much any web page.
Gigabit Connectivity in Kansas City Starbucks
Not just connection counts; when I first looked at the github I was surprised at how close the code organization was to twemproxy, and when I looked further a huge amount of the code is built on top of existing twemproxy code.

Netflix probably saw an opportunity to built the Dynamo layer on top of what Twitter had already written, and decided to just keep building on in C instead of rewriting a fairly large codebase.
It doesn't give a sliding x-week window, though.

It gives an x week window offset by n*x weeks.

So you can see now through 3 weeks, and 3 weeks through 6 weeks. But I want to see 3-4 weeks of window and slide by one week!