EzGraphs

consider removing price as the default decision criteria

Most of the comments here (and parts of the original article) are elaborations on applying this principal. So price is not necessarily correlated with quality, but using price as a default decision criteria results in suboptimal outcomes (stuff that is not really "better" or consumers that are happier or otherwise benefited).

A more extensive description/case study of bi-temporal database design: http://www.cs.arizona.edu/people/rts/tdbbook.pdf

This case study tried to be somewhat rigorous, but from what I recall the SQL did get complex and expensive pretty quickly. There are a few attempts to create products to mask the complexity as well:

http://www.timeconsult.com/Software/Software.html

For living in time and dealing with it regularly in a common sense sort of way, it is really rather challenging to manage effectively as data.

"Managers may not be aware they are making evaluations based on face time."

You can argue that managers should be aware of a bias in this area and strive to minimize its effect. However, workers need to simply be realistic about the effect of working remotely - regardless of whether it seems fair to them. Personally, I prefer to work remotely - but I have always been wary about not spending enough time in the office because of the tendencies described in the article. Physical presence is a powerful thing, and difficult to ignore. Email, IM, Skype, and phone calls are much easier to ignore.

Don't be discouraged if what you produce initially is something other people dismiss as a toy. In fact, that's a good sign. That's probably why everyone else has been overlooking the idea.

http://paulgraham.com/organic.html

The problem that Google is focused on is reducing the number of clicks required to get you relevant information now... from one to zero. It's a problem that Google Now might not solve, but somebody eventually will.

My guess is yes to both...

http://httparchive.org/trends.php?s=All&minlabel=Nov+15+...

Small amount of time relatively speaking (the Guardian example was from 96 through 2011). So the general trend for a bunch of sites (on httparchive.org) looks more-or-less linear, but that's probably because only a limited amount of time (2 years) is in view.

I looked around on the Wayback Machine a bit but it seems like images are not always stored.

Did anyone else see this title and expect to see a story about a flying saucer crash and little green men? :)

"...test-taking" training basically consists of saving time by training away from full reasoning...

A quote from one of my professors:

"Tests test what tests test."

Tests end up serving as an observable criteria for identifying intelligence. As long as their proper function is understood, they are useful. They are not not necessarily helpful in identifying who will be most successful in business, the political arena, etc. Because of the increased attention on testing, most reasonably informed people develop test taking ability as a somewhat independent skill.

It also seems like there have been more stories lately that portray Microsoft and its products in a more positive light....

It seems like "ensemble" methods - combining the results of several different algorithms - is generally a less-than-rigorous exercise that involves throwing a bunch of different approaches at the problem and averaging the results.

It is good to hear that there is "a growing space for practitioners in this space, that aren't necessarily as strong in the theory." But the term "Data Scientist" seems a bit lofty for folks doing this sort of work.

Are today's "data scientists" really just software devs who have specialized in digging around in data and using various data mining algorithms with only a superficial understanding of their inner workings?

Part of the reason I set up http://hn4d.com was to get a sense of how much activity was going on at a given time. Can't say I have done any sort of rigorous testing though.

Link title and content also matter - as well as a link's relationship to other posts that have captured the hn community's attention..

Some ideas based on my similar project over at http://hn4d.com.

Another are of interest that I track is the change in the number of comments over time. This also provides an indication of current activity and interest over time.

Since you have historic data, perhaps a search would be useful. It might be interesting to see "longest lasting posts" or posts with the "greatest increase."

In any case - very nice site, well implemented and easy to understand.

You can watch changes on the main page at hn4d.com and just wait for the page to refresh (every few minutes). Save your refresh button too...

Very talented...

http://tonybreyal.wordpress.com/2011/11/24/source_https-sour...

Then running the example is as simple as:

source_github('https://raw.github.com/ezgraphs/R-Programs/master/github_fol...)