skysight-inc/HackerNews huggingface dataset:
Huh, interesting. But I got the impression from your article that you typically had a discussion with the student, presented them with the evidence, etc. after they protested to you. That's a little different than my proposal, where in the case of protest you hand it off to the honor board immediately. I.e. the students should know that the only discussion is one where they risk suspension if they don't manage to prove their innocence. Also, from what I read, you actually sent out an email inviting students to come talk with you. Hard to see what other outcome there could be than students coming and taking up a lot of your time.

Think about it in terms of incentives and scarce resources. If the students know they can come and protest to you with no additional consequences, they will certainly do so, guilty or no. Everyone has heard the story of merciful teachers and cops that don't give a ticket if you cry. At worst, they are out two hours, and at best, they may get a higher grade with very little work. Basically, your time has become a commons whose use has no real cost to the individuals taking advantage of it, but from which they believe some value can be extracted.

The economic solution is to make sure the time costs something, so that the students will consider whether there's really enough utility in protesting to make it worth the cost. The cost is that if they protest, they run the risk of suspension in the event they are actually guilty. It should be obvious to students that this will be the likely outcome if they do protest.

Let me know if I'm reading you wrong because I really am curious if students protested even though any protest would result in an immediate referral to the honor board. Also, thanks for fighting the good fight even though it got you screwed in the end. We need more folks like that.

Oh, I didn't mention the one other advantage this approach has. If you quickly and forcefully deal with students who have violated class policies, I think there will be less emotional "splash damage." It's the same way a parent should not draw out a punishment over a long period of time -- make it hard, get it over with, and wipe the slate clean so you can smile at each other the next day.
Zuckerberg's response of "Yes" to "Do you want the door open or closed?" seemed humorous enough to me. Stone just didn't get it.
Ask HN: How to use Ruby for Naive Bayes Classification with Floats?
We are trying to do naive bayes classification in Ruby.

Currently we are using http://ai4r.rubyforge.org/

We couldn't get it working for float values and have about 20% points lower accuracy with string values. With float/integers we get a [] no implicit conversion from nil to integer. We convert floats with to_s.

Is there a way to get float values working? If not what are alternative gems to ai4r for ruby or alternative algorithms to naive bayes?
I have the proposed solution at the end of the article. Please read that part as it is at the very heart of the point that I want to make.
"Do you want me to close the door or leave it open?", to which Zuckerberg replied, "Yes".

I would guess this is how it happened:

Stone: "Do you want me to close the door..."

Zuck, thinking the question is complete, starts to say: "Yes."

Stone adds the unnecessary: "...or leave it open?"

So maybe Zuck was just thinking too fast. :)
Two topics:

The guy focuses on his strengths. Good on him. Not everyone should be him. Talk about that or don't.

This is linkbait. CEOs should post linkbait. Discuss?
I think a better way of putting it is "Trust, but protect yourself in case you are wrong". As I wrote elsewhere, I think saying that you "absolutely trust" someone (anyone) is one of the most arrogant things you can say; you are not only saying you trust that person, you are also saying you don't believe you could be mistaken. Believe me, there is always room for a person to make mistakes.
My best guess was that its a reference to the island in the tv show Lost, but I fail to see why that would be different from the gravity on earth.
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How do you do #2?
By the administration, which separates the credits for the courses into "recitations" and "lectures". The TA's get paid for the recitations/activities-based hours, the professors for the lectures.
"
Suggestions to change completely the assignments from year to year are appealing on the first sight but they cause others types of problems: It is very difficult to know in advance if an assignment is going to be too easy, too hard, or too ambiguous. Even small-scale testing with TA's and other faculty does not help. You need to "test" the new assignment by giving it to students. If it is a good one, you want to keep it. "

I've often heard that from professors in the US, but in my university in France we had a rule forbidding professors from reusing exams and things were fine... Now one thing though, exams were made so that the average is around 10 or 12 out of 20... In cases where the gaussian curve was centered too low, the teachers would decide to grade out of 22 or 24 points...

I have to say though that the idea of using public project, competitions and peer reviewed projects is a very good idea and worked well when I was a student...
well if you just wanted to know if someone read or opened your email, there are services like didtheyreadit.com and toutapp.com and that will track this info for you, sort of like a receipt. If you're looking for a quick hack(limited results), you would embed an image in the email and track how many times it is accessed. And most email marketing software track this information for you. That solves the problem of "Is there anyone there", but not the getting the person to reply problem.
I agree with the general thrust of this, but I don't think hackerne.ws needs more Mises.
open | closed -> true

:-)
Who said there's no ROI in social media? How Twitter saves us $600K a month
There are a lot of comments, and most of the constructive things I've wanted to say have already been said.

Panos, I think your conclusion is the correct one - and you should stand by it. I came to a similar conclusion (different setting) about cheating, and whether it's worth it to pursue it. In more than just teaching, switching strategies is often more effective than enforcing the original strategy.

I hear you're a good lecturer - take pride in that. There aren't many, really.
A slight discrepancy
Thanks for pointing that out.

Looks like ruby2C has been abandoned (Activity Percentile: 0%), which is a shame. High level languages that compile down to C are such a powerful idea, but it's a concept that doesn't seem to get that much attention and traction (developers seem to have given up to either low level languages like C/C++ or higher level languages that limit the portability of their code). The strongest project I'm aware of is ooc [1], which was created and is (currently slowly) developed by some really clever folks, but it could really use some more love.

[1] http://ooc-lang.org
Hey, I co-organized this event, so the actual statistics were that out of 97 registered candidates under 10 dropped of their own accord and there were 40 no-shows. There were approximately 50 companies attending. While the ratio was not great, and the fact that most companies sent at least two people made the odds of humans bizarre, a 1:1 ratio is not what we hoped for but not 5:1.

At the last fair we got about 2:1 candidates to recruiters, which was closer to what we were hoping for. At the next fair we plan to take $20 deposits which can be refunded by either attending the fair or giving 48 hours warning that you are dropping out. At this fair we actually had to stop accepting candidates because we had so many that we were running out of room and worried the ratio would go too far the other way.
My 2 favorites are the Reddit Jaws and the Reddit Karate Kid shirt.
The jaws one says, "If you watch Jaws backwards, it's a movie about a shark that keeps throwing up people until they open a beach."
The karate one says, "If you watch The Karate Kid backwards it's about this karate champ who slowly becomes a pussy and ends up moving back to Jersey."
hahah these shirts are great. And like jorde8 my shipping was surprisingly fast!
Totally agree. It's about direct "to the source" answers, not about the functionality. Adoption versus adaptation.
Honestly I would have no idea whether that was a joke or not, about cutting the line. I would probably laugh if he said that to me because it's a safer response, Mark went the other direction. I'd like to hear a better example of these solid gold jokes they were throwing at him.
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Anyone know exactly how long it took to fill up? I'm glad I signed up when I did.
What is this, pacifist Pacman? I can't eat the ghosts! (And they can't eat me.)
We did not permit any 3rd party recruiters to register for the fair. Companies had to prove that they were hiring and while equity was permitted they had to prove they were able to pay a living wage in addition to the equity package. Most of this was done by checking on their website, and for the small places generally lurking around Crunchbase etc.
Here's a link to the original interview audio and transcript: http://www.npr.org/2011/07/16/138160765/twitter-co-founder-b...
28 students last year (out of about 4,000) were reported. 17 were suspended, 7 got probation, 3 were found not responsible, and 1 had the allegations formally rescinded.

This is roughly consistent year-to-year.
Oh error there http://min.us/mymp6U
I'm sure it's service dependent, with some services the frequency would likely be essentially 0, but some services like popular online games you'd see it happen widely the first day you allowed it.

The problem is, one person does this you pretty much have to change your code immediately if you disable an old password. And while I focused on the malicious, don't discount the accidental - my gmail routinely gets sent email meant for people who couldn't enter their own email address correctly when signing up for various things. If out of the blue a customer can't use their password and has to go find a new one to enter they aren't going to be too impressed even if it doesn't happen again.
And it's already closed. Glad I registered.
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He used TurnItIn? That website that commits copyright infringement? Yeah, stopped reading after I saw that.
It's sluggish to begin with. With the AutoScroll Chrome plugin (which I use because the Linux Chrome distro doesn't have middle-mouse scroll for some insane reason) it completely breaks it. (The AutoScroll plugin adds a div somewhere that completely breaks posterous sites.)
Yes, and also an inadequately configured server.
That's a brilliant idea
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Absolutely.

As a manager you can either see yourself as the grand poobah or as somebody who's there to support the people who are actually doing work. Sounds like Zuckerberg's the latter.
It is too early to talk about the possibilities of G +. Let pass at least six months. Then we can say that this is just a toy, and soon all get tired of it or it is a real competitor which can replace FB. My opinion is, G + will do nothing radically new in the social networking what FB can't do. So, G + started quickly, but late.
> Sometimes it is, sometimes it isn't.

This isn't code, these are written assignments we're discussing. English is pretty damn flexible, and nobody gets suspended for "Abraham Lincoln died in 1865." There's no point invoking degenerate cases to argue against a policy. That's just silly.

When a nontrivial sentence appears both in an essay and in one of the listed sources, the Wikipedia page, or a top Google hit for the subject, you can draw inferences. If you can argue that you just happened to write:

> However, just six days after the surrender of Confederate commanding general Robert E. Lee, Lincoln was shot and killed by Confederate sympathizer John Wilkes Booth at Ford's Theatre in Washington, D.C.

just as it appears on Wikipedia at present, and convince your peers it's more likely than not that you did, then you won't be punished. Not unsurprisingly, such pleas typically (but not always) fail.
This was well understood nearly a century ago; an awful lot of people know FDR's line that "the only thing we have to fear is fear itself" but have never thought about it and have no idea what it means.
That's the most linkbait title I've ever read.
Yeah brute force lockout is a destructive attack.

A better lock-out approach is to disable logins for a period of time (say 1 minute)... i.e. as someone said above, you don't want to destroy the old password in case the reset was requested by someone else.
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This is why I love living in Michigan. Like Minnesota, we get temps from well below freezing up to 100F. Real winters. Real summers. Crisp frost and gorgeous colors in the fall. Spring is worth celebrating.

I won't trade it for Phoenix until I turn 65. But yes, it does make heating, cooling, clothes shopping, and a host of other things a little more difficult than the southern states.
Has Mac OS peaked?
Recent trends seem to indicate that Mac OS has hit a plateau, not helped by the fact that Apple seems to be focusing more aggressively on iOS than Mac OS.
How does this work? Now that most email clients block images and stuff in HTML email, isn't it basically impossible to know if they read your email?
In the US at least people are constantly saying that hard work should be rewarded, with no mention of whether the effort produces any particular value. The assumption may be that, well, no one works hard to create _no_ value, but indeed there's at least a lot of misguided hard work that people then think deserves some sort of arbitray reward.
I think they're also using this url http://startuptees.com/
He made less money if you consider opportunity cost. He could have made more by not pursuing the cheating. He also spent a lot more time, lowering the amount he earned divided by the amount of time spent at the job.
Yeah, it's even arguably a programming joke!
What happened with bots on Wave?

Is posting on two services really worse than posting only on one? At least people who are on one but not the other will get to see the post. Until G+ and FB make peace and inter-operate, this can't really be helped.
That's nice. But you're not him. Even you recognize a high likelihood of failure. He doesn't want to fight that losing battle, I cannot blame him.
>> That is a major professional flaw and a post on how you plan to control your emotion may be appreciated by future students.

I think he is readily admitting this is a major flaw, and he plans on controlling his emotions in the future by not obsessing about cheating. This is probably not the ideal response, but it is very human, and you have to give him props for admitting his weaknesses.
Maybe I'm doing something wrong, but what's wrong with cheating? Isn't using other people's code, as in open-source, "cheating"? Isn't Google cheating just because it created a fancy clone of FB + Twitter? Wasn't Plotinus cheating because he borrowed one of Plato's main ideas and just fancied it up a little? Wasn't all Western Medieval philosophy cheating because it was barely a commentary to Aristotle and then later to Plato and Plotinus?

I know I'm exaggerating, a little, I'm just trying to make a point. Schooling other people and forcing them not to "cheat" just for the sake of, well, schooling, doesn't have any benefits and it's nothing like what happens in real life. We're all trying to build things on the shoulders of giants.
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I worked at Turnitin for a good while, and the numbers we were seeing were eye-popping. I make no attestations w/r/t this particular story, but we'd see 40% or more clearly plagiarized content at every institution we'd demo for. I was shocked, but then, I'm old and my education predates much of the Internet.
Can we please not be mushy-headed and pretend that the reason that we chose military "solutions" is because they are somehow easier?

It's actually quite complex to invade several poorly-chosen nations, spending trillions in the process, stay in those nations for twice the duration of WWII, and manage to justify all of these misadventures to the public well enough to get away with it.

We didn't choose this path because it was easier. This path was chosen because we elected an Administration which had immense political and financial motivation to find excuses to make war, as often as possible for as long as possible, regardless of the alleged reasons.

For my money, it would actually be much simpler (and obviously more efficient and fruitful) to solve the admittedly complex problems surrounding what causes folks to want to become terrorists.
reddit gold, one year later (spoiler: the naysayers were wrong)
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First off, many of the details you cited are inaccurate. However, its pointless to argue over such things. I was not aware of your health condition, but given the pattern of treatment given to me and a handful of others, I was left to assume you were acting as usual. Anyway, my post was to make you aware of a few other reasons as to why you received a low evaluation score. Blaming the students wholly is unjust and there are a plethora of other reasons as to why they may have viewed you in a bad light, as I've elucidated a few already. Thanks for your response and best of luck handling this issue in the coming terms.
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writing tests (and test libraries) in Objective-C than JavaScript. We actually wouldn't gain much from the 'scripting language'-ness of JavaScript, and the additional language and tool (Instruments) would make writing tests more complicated and painful.
One thing you don't address in the article that I would like to hear more about is how you handled cheating in previous semesters? Do you think it was just as prevalent, but you simply weren't aware because of no automated processing? Or were you teaching classes where cheaters were much less likely (such as an upper level research course)?

I think the comparison would add a lot of valuable info to the debate.
Downvoters, would you like to share your reasoning? I don't care about my hn karma, I'm just really curious.
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Might be nice for prototyping. I've never been a big fan of the Arduino programming language. It's a thin veneer over C that insulates newbies from "scary" things like port i/o bit twiddling, while not really moving the dial on language expressiveness or presenting a familiar face. Ruby has a shot at both of these.

That said -- this is pretty much unimaginable for my current embedded development projects, where C compiler tricks have been the name of the game for some time now. Add a feature, exceed the 8K program memory limit, find something to optimize, repeat. Injecting a Ruby-to-C compiler into this loop would be madness.
A function to fit a rectangular area inside another. I use it whenever I need to fit a view inside a window. Pretty handy.
It depends, of course, if you're talking as a botanist or as a cook. It's one of those words with multiple levels of truth.

Same with tomato - it's a fruit botanically, but in culinary terms it's a vegetable and definitely not a fruit. As long as you get your context right, you won't have problems communicating :)
Here's a radical idea:

Get rid of grades.

Let's think about the consequences of that for a minute. You still pay for college. There are still classes. There is still homework. Exams are unnecessary. Do away with prerequisites. In this system, everybody in class is there because they want to learn. It is the only motivating force.

And what do we lose? Companies might look at grades for determining how well suited a possible employee is for a job, but it seems to me that other qualifying material such as previous jobs, skills, extracurricular activities, and projects are equally important. And besides, you wouldn't want to hire someone only based on their grades, you would want to interview them first.

Anything else? It might be a worthwhile trade off.
I don't know if that's entirely true.

I do a lot of Firefox extension development. Many companies or users have a need for highly specialized functionality built into a browser, and Firefox provides an very rich platform for that. You can easily build powerful applications that integrate tightly with Firefox.

Chrome's extension capability is much lighter and more restricted; Chrome extensions are just light little packets of functionality that add to the browser. There's many things that you can't do that you could do in Firefox.

I think that area is definitely where Firefox wins, and will probably continue winning in the future.

Does everyone need that, and is it enough to keep a large market share? I don't know...but it is something that Firefox does better.
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Passion.
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This has the problem of false positives, and an assumption of guilt. In my experience (at the Naval Academy, so maybe a little different), honor boards were designed solely to award punishment with no realistic chance of presenting evidence in your defense. I imagine that most schools are less strict, but still expect the professor to have talked the matter through with their students before a formal inquest.
I was hoping for some numbers. Glad it worked well though and the timing was fantastic :)
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Dealing with breakpoints is a very time consuming process. In my opinion, a better workaround is to have a "log" function which wraps console.log(), and clones any objects if the browser is Chrome or Safari.
And I wish I had permission to share them. :)

I will point out a quote from the original reddit gold announcement: "Conde Nast allocates resources proportional to revenue."