Older blog entries for sness (starting at number 4195)

Association rule learning - Wikipedia, the free encyclopedia

Association rule learning - Wikipedia, the free encyclopedia: "In data mining, association rule learning is a popular and well researched method for discovering interesting relations between variables in large databases. Piatetsky-Shapiro[1] describes analyzing and presenting strong rules discovered in databases using different measures of interestingness. "

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Syndicated 2012-04-22 00:02:00 from sness

Time series - Wikipedia, the free encyclopedia

Time series - Wikipedia, the free encyclopedia: "Time series analysis comprises methods for analyzing time series data in order to extract meaningful statistics and other characteristics of the data."

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Syndicated 2012-04-22 00:01:00 from sness

Sequence mining - Wikipedia, the free encyclopedia

Sequence mining - Wikipedia, the free encyclopedia: "Sequence mining is a topic of Data Mining concerned with finding statistically relevant patterns between data examples where the values are delivered in a sequence.[1] It is usually presumed that the values are discrete, and thus Time series mining is closely related, but usually considered a different activity. Sequence mining is a special case of structured data mining"

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Syndicated 2012-04-22 00:00:00 from sness

How to setup SSL on Amazon EC2? - Server Fault

How to setup SSL on Amazon EC2? - Server Fault: "In your EC2 control panel, look at your instance and note the Security Group that is assigned to it. Then, navigate to the Security Groups section in the control panel, open your group, and make sure that port 443 is allowed over TCP.

This must be open to allow SSL traffic to your instance. A simple way to check if the port is open to the outside is to telnet into your server's IP on port 443, and see if you can connect and get a response.

telnet yourhost.com 443"

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Syndicated 2012-04-20 22:42:00 from sness

Bret Victor, beast of burden

Bret Victor, beast of burden:

I believe that dynamic pictures will someday be the primary medium for visual art and visual explanations. The medium is currently in its infancy -- working in the medium is more about technological fumbling than artistic expression. The revolution cannot happen until there is a means for artists to draw dynamic pictures.

This essay describes what dynamic pictures are, what dynamic drawing is, why the subject is so important, and some initial project ideas.

If any of this inspires you to play around with these concepts, I'd love to see what you come up with.

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Syndicated 2012-04-20 20:29:00 from sness

Force-refreshing only JavaScript files in Firefox and Chrome - Super User

Force-refreshing only JavaScript files in Firefox and Chrome - Super User: "I do this myself for development. I use CTRL-F5. Its like a force refresh. This refreshes the page including re-downloading any referenced JS files or CSS files even if they were cached.

It will NOT clear anything else such as your browsing history."

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Syndicated 2012-04-20 18:19:00 from sness

Django | Built-in template tags and filters | Django documentation

Django | Built-in template tags and filters | Django documentation: "{% if somevar == "x" %}
This appears if variable somevar equals the string "x"
{% endif %}"

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Syndicated 2012-04-20 18:19:00 from sness

Welcome to the SlickGrid! · mleibman/SlickGrid Wiki

Welcome to the SlickGrid! · mleibman/SlickGrid Wiki: "Quite simply, SlickGrid is a JavaScript grid/spreadsheet component.
It is an advanced component and is going to be a bit more difficult to learn and configure, but once you realize its full potential, it will blow your mind!

Some highlights:

Adaptive virtual scrolling (handle hundreds of thousands of rows with extreme responsiveness)
Extremely fast rendering speed
Supports jQuery UI Themes
Background post-rendering for richer cells
Configurable & customizable
Full keyboard navigation
Column resize/reorder/show/hide
Column autosizing & force-fit
Pluggable cell formatters & editors
Support for editing and creating new rows.
Grouping, filtering, custom aggregators, and more!
Advanced detached & multi-field editors with undo/redo support.
“GlobalEditorLock” to manage concurrent edits in cases where multiple Views on a page can edit the same data.
"

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Syndicated 2012-04-20 17:22:00 from sness

DailyJS: A JavaScript Blog

DailyJS: A JavaScript Blog: "Unfortunately the division between the semicolon and semicolon-free crowd has become very pronounced and is leading to some angry exchanges. A recent lightning rod for semicolon-related controversy is the most watched project on GitHub, Twitter’s Bootstrap and the author of its JavaScript code, Jacob Thornton who is a convert to the semicolon-free camp."

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Syndicated 2012-04-20 17:22:00 from sness

Crossbrowser » Crowdsourced brute-forcing: how Fez was a coop game for a couple of hours

Crossbrowser » Crowdsourced brute-forcing: how Fez was a coop game for a couple of hours: "Time between when the app went live to when the solution was found: ~18h
Number of contributors: more than 1300
Number of trolls: 123 people found a correct sequence, 20 of them found quite a few
Number of tested sequences: 66227/78125 (84.771%)
Number of false positives: 515
The solution had been marked as negative about 5 hours after the app went live either by someone trying to ruin the efforts of the others, because of an error from the player inputting the sequence of due to an error in the code.
Overall I am very satisfied of the project, it was shared by many on Twitter and on various forums as well as on Kotaku. I managed to set-up a very useful application in a matter of hours using Rails, Heroku and Bootstrap. The current website will remain live as I see no reason to take it down, I have put it in a frozen state to preserve its state at the time the sequence was found."

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Syndicated 2012-04-20 17:20:00 from sness

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