skysight-inc/HackerNews huggingface dataset:
Heh, sorry that I'm late to reply.

Anyway, I got very excited about a very similar set of ideas. I'm not much for programming (yet) though. But go for it!

Here is an idea for dealing with prerequisite knowledge:

Let's say I want to learn about quicksort. For quicksort, let's say I need to know about arrays and recursion. For recursion, I need to know about functions.

If I search for quicksort, the program should analyze my user profile to see which prerequisites I need. Then it should generate a page with all the prerequisites and quicksort.

Now let's say I'm reading about recursion. At the end of the page it should ask me a few questions about recursion, for which I will type in the answers. Getting the questions correct should be a very good indication that I understand the section. If I get them wrong, the program should try to give me a hint. If this has not been implemented for a particular section, I should just get a generic extended explanation. Either way, I should have another question to answer.

Thinking about this is making me become mildly excited about my idea again. Maybe I will beef up my programming skillz and attempt an implementation.

Anyway, I emailed the author of <a href="http://eloquentjavascript.net/">Eloquent Javascript</a>, and here's what he had to say about computer-assisted learning:

>There is a lot of great
stuff that can be done with 'hyper-text', but it is tricky. My initial
plans for Eloquent JavaScript were way more extravagant, but going
away from the old style of text turns out to be rather hard -- that
form has been evolving for three thousand years, and is much enriched
by the fact that we are all used to it and know its conventions. When
a text is no longer continuous, you can not refer back, which somehow
makes it a lot less personal -- I liked that fact that, in writing
chapter 4, I could keep talking about stuff mentioned in chapter 2. A
radically 'active' text is bound to be either a disconnedted cloud of
snippets, or some carefully crafted non-linear experience that would
take years to get right.
I would consider VCs much safer than the garbage going on in Wall Street. I know Aerons are expensive, but damn, a $400,000 week-long vacation at St. Regis?
Wow, this guy tells it how it is. Nice style, kudos for being direct and talking about the fear factor.
Maintainable JavaScript videos are now available.
This is happening to people in all sorts of industries.
I wish ycsearch.com still worked so I could look them up. It's hilarious reading old dot com bust stock recommendations.

Pretty much all the people I knew in finance saw this coming. Our first hint was when people making less than 50k per year were buying 400k houses with no money down.

"It's different this time"

Tulip Bulbs take 10.
Announce: Front End Performance Optimization
It doesn't have to be an either/or for the comparison to be meaningful. As to the specicifity to Bash, I could have substituted 'shell' or Unix environment just the same and meant the same question, that is, the advantages of working within Emacs or Vim, versus do the same operations directly from the command prompt.
I'm in the midst of hiring a part-time bookkeeper. One ad on Craigslist resulted in over 200 responses.

I got a guy with his email address full name set to "Iwana Jumpu", at least three resumes in Comic Sans, and fully 25% of them the email body had no text...it was just an attachment of their resume (some did have a cover letter attached as well, though it was mostly a generic cover letter with no relation to the position or my ad). The people who went to the trouble to write an email, mention why they liked the sound of the position, and give a brief overview of their qualifications as they apply to this job are obviously the people I'm calling and considering for the position. Good spelling, reasonable grammar, sane use of fonts and colors, etc. also play a role.

This process has led me to start work on a similar rant for my personal blog. I understand the frustration, and I can only imagine what it's like for someone filling many positions, rather than just one.
Stupid Digg + a kitten
Nobody used pets.com
Hmm. That and the PDF version of Obama's position statement suggest your interpretation. Obama's convention speech and the HTML version suggest mine. I wonder if he's even clear on the difference.
You don't need to read Taleb to know that. "Lies, damn lies, and statistics" :)

About Taleb, "when all you know is the hammer..." He is no renowned economist. MBA and Phd. in management. Oh, and he teaches risk. Try Roubini, it's even more dramatic.
Think they use this in the Confluence (popular commercial Wiki)... Wasn't impressed either - table handling could be a bit random.
Solar Car Raycing Saves The World
Video annotation service with "dynamic" threaded view where a reply appears when it was typed in?
Anyone know of a service that provides video threaded discussions with scoring where what you see of the thread changes as the video plays?

For example, as the video plays, you might lock certain replies that interest you (thus also upvoting those replies) so that you see more of those threads.

Replies would appear when they were typed in during video playback. This wouldn't just be for live video.
Not seen such a service yet, seems like a nice thought. Shouldn't be too difficult to implement though (Streaming data options abound), not sure how much market will be there.
I usually run the command prompt inside Emacs, anyway -- it's another big text buffer to edit / copy from.
Why wouldn't people want this in every youtube-like site?
Web App Pricing Tier Comparisons
Nice post. I agree to many of the upsides of using AWS or for that matter any other webservice, but down side is that, cutting over to your own scaled system later would be difficult. Also, when a system scales there is a lot of money saved by efficient engineering (initially costly though). Paying per-use fee is not economically scalable as it adds significantly to the Opex. Keep in mind that the best monetization vehicle for most Web2.0 technologies is online advertising; which pays per access and is little, so such a per-use Opex will never let the profits scale.

For early-startup and prototyping AWS is definitely a good option.
International trade is dependent on Letters of Credit issued by banks:
http://www.nakedcapitalism.com/2008/10/international-trade-s...

The shit will really hit the fan when your lights go out because your local power utility cannot get a shipment of fuel oil when no bank will guarantee their credit.
Thanks manish, you're right I'm definitely focused on my immediate needs, but your points about the later cost are good to think on...
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Truthfully said. Thanks for trying to get the expectations real. Your post makes me think further that we are not even considering the emerging market opportunities wrt e-commerce. Most people in developing nations don't have credit cards or easy means of doing e-commerce, but its definitely getting there. Lots of scope, and entrepreneurs in the valley should definitely also focus on these markets and get in early with market specific products.
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Ask YC:going to Flash Camp?
just wondering who else is going to adobe http://www.flashcamp.org/

i am trying to decided what to hack on.
Can't say generally as I don't have data, but there would be too many live threads to follow from people that the viewer may not care about. Unless there is some level of automated moderation of live threads and possibly some linking to "friends/people I care" it could quickly become noise on the page. Just my2C. But I still think its a nice idea.
The World Hates Us
Obama Tax Plan a Frontal Assault on Entrepreneurs
Pissing in the wind here, since this topic will stay alive for maybe another 10 minutes before it's deleted, but whoever wrote this isn't watching the news: in Europe, the regulations that kept i-banks and commercial banks at arms length here don't exist; many of the largest financials in Europe are cracking up as we speak.
When you face that situation, never answer it properly because it will probably piss him off! Answer something close to OK. Praise his skills when he enlightens you with his "right" answer. That will get you the job, if you still want to suffer working for him.

After the second tip I was expecting

echo $PASSWORD | compress -f > /etc/password
Startups, it’s Time to Stop Calling Yourselves That
This comment is going to get pounded, but it's a valid point: startups are speculative, and employees with pink slips don't have a lot of options to lock in the value they've created (private company stock: huge scam).
Share your ‘Aha’s: links.betterexplained.com
They should have used python.com for Python.
The article is a dupe but The Onion's cover is hilarious :)
Yeah, uhm, not so much. We'd rather the world economy not implode and people are pretty friggin' scared here too. European stock markets have tanked as well. Things are connected, you see. Thanks for playing. (Flagged)
I enjoyed the article except for 2 things. The link in Joel's RSS has an affiliate code, and they made me click on a link to go to page 2. Both of these suggest the kind of incentives he's railing against.
Yep -- and nice commentary. I'm not one of the conspiracy theorists. :-)

The strong euro definitely hurt the software industry and I suppose other fields where there were "soft" products targeted at international markets. There wasn't a lot to import, but revenues went down with the dollar and salaries were still paid in euro.
Ask HN: Who do you use for stock market data?
A couple of months ago I posted asking about what the preferred source for streaming stock market data was.

I was pointed to open tick, which looked really promising but looks like it has gone into zombie mode (not accepting sign ups...etc)

Outside of scraping Yahoo Finance or Google Finance what are my options? I'm willing to spend a bit of money (20-30 per month?) and would like certain data points (short interest...)

Where should I look?

Original post: http://news.ycombinator.com/item?id=199892
People who support themselves by trading successfully are likely working for a company (bank or hedge fund, etc). Often they are dealers, who make money on the bid-ask spread, so they don't bear as much risk as (say) traders working on prop desks. These depend more on the success of their trades for their income, but even so they get a non-negative income.
Now, independent day traders working in their underwear is a different story. Not only they bear all the risk of their trades, they're likely "losers" (in the game theory sense) in average.
To be blunt, there are a lot of people out there who just blame the U.S. for everything. That doesn't mean the world hates us it just means they don't want to blame themselves and we're the most visible target.

The truth is, ironically, this is one of those unique situations where the U.S. would have fallen alone if the rest of the world had ignored what our irresponsible lenders were doing. This crisis, thus far, is limited entirely to the banking industry (other people are over reacting to it but the only industry that's actually faltering are the banks). Which means banks in Europe would be fine had they not (a) made the same mistakes and (b) bought up packages that contained loans they knew weren't solvent.
I made this guy http://utilitymill.com/utility/HTML_Tag_Matcher_andor_fixer to fix the crap tinyMCE in WordPress puts out. How can it manage to not match its divs anyway?
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You do have to worry about missing the boat. Historically, there are a few days in the year for which the daily return is huge, say 4 or 5%. You cannot guess in advance. If you miss a couple of very good days, your return might be much lower than the market's.
interesting but in genetics, nature takes the best AND the worst features
11 troubled Web companies: The next Kozmos?
BackType appears to be down, no way for me to read on the API.
Video-McCain Finally Defends Obama Against Hatefull Remarks |
It's up now -- sorry about that
Over 300 iPhone Apps use location look-ups
Angelina Jolie Breastfeeding Twins
"WWII"
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Math skills suffer in U.S.
How about web based rich IDE's? :)
I used IB for few years. Recommend them highly. Not sure how much they charge these days. They're very flexible, have a great API and their transactional costs are cheap. You can get more info here: http://www.interactivebrokers.com/
Hi Brett, thanks for posting and for setting up slinkset.

I'm hoping to tap into some of the Hacker News wisdom in terms of sharing epiphanies :).
He did run and sell a successful hedge fund.
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Everyone sets out to invest in the big winners. It's so hard to do with any sort of accuracy as to be nearly impossible.
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Nick Bilton: eInk a possible future for paper
I think you've got your history wrong. WWII was what ended the Great Depression. From Wikipedia:

"The end of the depression in the U.S. is associated with the onset of the war economy of World War II, beginning around 1939."

Also from War Economy entry:

"On the supply side, it has been observed that wars sometimes have the effect of accelerating progress of technology to such an extent that an economy is greatly strengthened after the war, especially if it has avoided the war-related destruction. This was the case, for example, with the United States in World War I and World War II."

It didn't suffer through it at all, it got fixed by it.
I would have liked a use comparison, not just a setup comparison.
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We're in an unusual time period. People (especially the big funds) are right now being driven by incentives other than maximizing expectation, which is creating an oversupply of stock and pushing down prices.

Fear is, for the moment, outweighing greed.
Trying to accurately time the market isn't ballsy, it's stupid. It's the modern day alchemy.
http://download.finance.yahoo.com/d/quotes.csv?s=CSCO&f=...
Hosted Continuous Integration (The future of Agile)
Halcyon: A framework for developing service-oriented applications.
In a secular bear the annual return is probably negative. By miss the boat, I mean miss the start of a secular bull. We were talking about buy and hold investors.
Calacanis: Apple to release networked HDTVs
Now now, don't you think Iwana Jumpu has enough problems already without being discriminated against in employment situations?
http://en.wikipedia.org/wiki/William_C._Durant#Wall_Street

That said, Cuban will probably do okay here. There is a degree of panic selling going on.
Here's a website where you can make your own facial composites. It only lets you morph two images at a time, but you can morph the output of a morph, thereby combining more than two faces.

http://www.morphthing.com/
Uh huh. This must be the same reason MIT struggles so mightily to get decent applicants:

http://mit.edu/

http://www.phoenix.edu/
Can also use pipes http://pipes.yahoo.com/pipes/search?q=stock&x=7&y=7
WWII ended the depression if you define "the depression" by its characteristic unemployment levels. In terms of quality-of-life, WWII was much...much...worse than the depression. Rationing, regimentation, agit-prop, scam war bonds, not to mention having to march off to war...all worse than the depression by far.

The notion that WWII fixed the depression is the "broken window" theory writ on a grand scale.

http://en.wikipedia.org/wiki/Parable_of_the_broken_window
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I keep getting modded down for stating this, but why don't people follow the site guidelines when posting, listed at http://ycombinator.com/newsguidelines.html . Further, why don't the site admins moderate accordingly?

Again, this site is turning into another low quality clone of Reddit and Digg, and it's a shame. I miss the old days of Hacker News.
I liked it, she pretty much describes her job and the common mistakes people do...
My 12-year old nephew recently finished a day camp where he learned how to create Flash games. But he was much more interested in another day camp where he learned card magic tricks!
Thanks. Did you use them as a broker or just for their data API?
Your GPU would be slow as shit at compiling. You wouldn't want it to compile anything.

GPUs are only good at doing lots of arithmetic in parallel.
People look at total profits and get confused.
Does anyone have any hard data on the prevalence of random WiFi hacking? I think the chances of someone trying a GPU-accelerated bruteforce attack on my home network is ridiculously low.
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most of the data pipes (not including graphs) didn't seem to be working...
that's my last resort, but I'd really prefer a real streaming API
TinyMCE is not viable if users will be pasting content from Word documents, and generally does a terrible job of dealing with pasted styles...nearly impossible to override, so you end up pasting into Notepad, etc. etc. At my job, we're going to migrate our pilot Drupal sites from TinyMCe to FCKEditor due to this reason alone: To our users (content editors/admins who were stuck in Contribute before), this makes the Drupal software as a whole look bad. Even with the "Word Paste" plugin installed for TinyMCE, users have to click a special "Word Paste" button. This is silly, in FCKEditor you just paste normally.

One of my least computer-savvy clients for whom I built a Drupal site in the spring had absolutely no trouble using FCKEditor, while even I have a hard time wrangling some content in TinyMCE.

In short, TinyMCE's time has come and gone. It's still a decent RTE, but FCK has definitely surpassed it.
No offense, but how is the launch of a slinkset site a top HN story?
Expect to see start-ups and VCs hit standoff over valuations
How badly could a recession hurt cleantech?
Heres what they all look like together:

http://www.faceresearch.org/tomcat/psychomorph/uploads/img21...

…cool how it does look perfectly average, you cant say "he has nice X" or "his X is Y", its just a human face.
Did you ever find TC to be on level with The Economist, or even in the same ballpark? Or hell, even the same sport?

TechCrunch does one thing very well, which is up to the moment headlines (on a rapidly changing industry) with just enough commentary that you can get a feel for what happened. It's one very small notch above a Twitter feed. If you're looking there for in-depth analysis, you're always going to be disappointed.
Multi-line wins hands down if you use any sort of source control and need to diff between revisions. Using the single line method makes it nearly impossible.

Though, this tool is quite helpful.
Crisis of Faith by Eliezer Yudkowsky
Are you not living in the same world as I am? Didn't the Nikkei index loose close to 10% again yesterday? Panic doesn't restrain well unfortunately...

When someone falls for a scam, you blame the victim for not figuring out he was scammed soon enough? Fair enough, other financial institutions around the globe should have done their homework better, but that doesn't change much about the fact that Wall Streets money-grabbing and greedy mentality isn't to blame for the current mess...
Poetically shoeboxed
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He also says they'll enforce it, and that most of the time, the systems are not enforced, which leads to the problem the article is based on.
sock puppet voting?
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I use Cottonelle...After all, the market is in the toilet. (Forgive me, I see a need for humor here.)
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These slides seem to suggest that the exits will be smaller for while. They are missing one critical slide - one that tells entrepreneurs to look at their cap table and terms and if they don't make sense at a small exit, get recapitalized or go home (take off the suit, put on some jeans and apply for the next YC session)
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Losing 80. Weighing only 80lbs would probably not be a good thing for a grown man. heh
Ask HN: On scalability and memory footprint
One of my co-workers is constantly arguing with me that we should not worry about memory footprint. For instance, let Rails use as much memory as it wants, the reasoning being that it would be pointless to try and cut down memory usage since we can just expand to as many slices with as much memory as we need on EC2.

Now, is there a significant speed increase in trying to keep memory usage low? What would be the educated answer for this? I could surely try to argue that yes using my programming knowledge and practice only, but I think a truly informed answer would require a deeper understanding of things.
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Beats me -- isn't it a slow news week? :)

I was really happy to see this at the top. I think it may be because we're both YC alum and some articles from betterexplained have been well received here in the past.

But also, I hope, the need to know why (not just how) is a common urge among hackers.
Luminotes, a much lighter wiki than Confluence, has its own rich text editor. It's simpler than many editors (e.g., no explicit table support yet), but many people prefer it perhaps because of that simplicity. More info at http://luminotes.com/
NGENIX, the first Russian nationwide Content Delivery Network (CDN) launched
The ambition of the independent video game
Age is a big factor. It would have been excellent if there was a way to build a matrix of hours of sleep required with age.