Computer Science Resources

knowyourapi: XKCD did it again. Jobinterview-Quicksort is...

Wed, 27 Mar 2013 14:36:34 -0400

XKCD did it again.

Jobinterview-Quicksort is hilarious.

So is StackSort (Image alt-Text): Connect to Stackoverflow, search for “Sort a list” and run code snippets until the list is sorted.

dylan patrick clark learns rails: Week one has come to a close. I can’t believe how natural it felt to...

Wed, 27 Mar 2013 14:35:44 -0400

dylan patrick clark learns rails: Week one has come to a close. I can’t believe how natural it felt to...:

dylnclrk-learns-rails:

Week one has come to a close. I can’t believe how natural it felt to write object oriented code today. I feel like I’ve learned so much already, and it’s only the end of the first week! Today we worked on Trees. This led me to harken back to learning mathematical logic in college, and…

Photo

Tue, 15 Jan 2013 19:41:34 -0500

nainomics: An introduction to Algorithms and resources to Get Going

Mon, 14 Jan 2013 14:39:23 -0500

nainomics: An introduction to Algorithms and resources to Get Going:

nainomics:

Purpose of this Article:

To give a broad knowledge of what are computer algortihms and give helpful resources to anyone who wants to get started.

What are Algorithms:

Algorithms are used for calculation, data processing, and automated…

the software philosopher: How Auto-Correction Works

Mon, 14 Jan 2013 14:38:09 -0500

the software philosopher: How Auto-Correction Works:

thesoftwarephilosopher:

The Levenshtein word distance algorithm compares words for similarity by calculating the smallest number of insertions, deletions, and substituions required to transform one string (word) into another. You can choose some limit — say, 4 — below which the distance between two words is short…

thefrogman: Placebo Effective by J.L. Westover [website |...

Sun, 13 Jan 2013 12:57:03 -0500

thefrogman:

Placebo Effective by J.L. Westover [website | twitter]

itworld360: Does math help with programming? Can a math...

Sun, 13 Jan 2013 12:53:42 -0500

itworld360:

Does math help with programming?

Can a math background make it easier to learn programming?

Image source: flickr/Maggie Hoffman

The rise of human-computer cooperation.

Sat, 05 Jan 2013 23:23:02 -0500

smsag:

The interface between man and machine … is more important than the power of the man or the power of the machine in determining overall capability. (Shyam Sankar)

No longer posting to this

Sun, 04 Nov 2012 21:07:29 -0500

If it wasn’t already obvious due to the ceasing of activity here, this journal is no longer going to be updated.
Thank you nerdybiker for following.

mileswayward: Solar-powered 3-D printer prints glass from...

Wed, 27 Jun 2012 13:04:45 -0400

mileswayward:

Solar-powered 3-D printer prints glass from sand

Click through for video

don-piano: computersys on Flickr.Thing I did in Uni when I was...

Wed, 27 Jun 2012 13:04:36 -0400

don-piano:

computersys on Flickr.
Thing I did in Uni when I was supposed to be learning about Binary Code

scienceisbeauty: Intel officially launched its 22-nanometer...

Wed, 27 Jun 2012 13:04:11 -0400

scienceisbeauty:

Intel officially launched its 22-nanometer Ivy Bridge family of processors on Monday.

Source: Intel introduces first batch of Ivy Bridge processors (Phys.Org)

Photo

Wed, 20 Jun 2012 15:28:13 -0400

explore-blog: The Computer Tree, a visualization of computer...

Sun, 17 Jun 2012 16:07:32 -0400

explore-blog:

The Computer Tree, a visualization of computer chronology 1938-1988 inspired by biology’s tree diagrams of evolution.

(↬ Kottke)

pianogirl8: notsofireproof: mageofbutts: blingostarr: spiswat...

Tue, 05 Jun 2012 23:22:18 -0400

pianogirl8:

notsofireproof:

mageofbutts:

blingostarr:

spiswatchingyou:

i-steal-your-pantsu:

videohall:

Wow that’s amazing, I thought it was fake after seeing them draw on the paper. That alone is ingenious.

what the hell

oh my gOD

i was already dead at the dance dance revolution part

thaaat’s pretty cool

i’m dying right now oh my god i need this in my life

O_O

HOLY SHIT this is amazing.

dream in code

Wed, 30 May 2012 09:57:16 -0400

dream in code

isomorphismes: Gerald Jay Sussman on biology &...

Sat, 28 Apr 2012 23:13:28 -0400

isomorphismes:

Gerald Jay Sussman on biology & computation.

The human genome is 1 GB. So is Windows OS.

We have no idea how to program a 10¹²-unit thing like a human, or a cow.

A salamander regrows three elbows if you break off its arm and reattach it — responding to local errors.

We have no idea how to write computer vision in a few steps like neurons do.

Program efficiency doesn’t matter.

Memory is free right now.

Computation is free right now.

For a million bucks you can get a seriously computer—but what to do with it?

Most of the cost of a computer program is paying programmers. —Huw Evans

Yet we spend so much time modifying existing code. —Huw Evans

Correctness doesn’t matter. (Getting a reasonable answer is fine.)

Security doesn’t matter. (Humans are attacked by parasites all the time.)

Biological systems are written to solve problems that the designer didn’t foresee.

This LISPian stuff of writing programs that write programs looks very awesome; what I’ve pretty much always wanted to do with computers. (I tried and failed to use PHP’s multiple dollar signs to helpful effect.)

Some stiff-matrix stuff that you can understand if you watch some Gilbert Strang videos.

The point being: with bindings and such you can write a program that’s somewhat robust: performing operator overloading or similar things so that you can just tell the computer basically what you mean. (Rather than having to be so specific.)

“Mathematical symbols are impressionistic” — just think about how the fnof; symbol is used — yeah, some function, whatever, ya know what I mean.

Systems that accept a wide variety of inputs and only give a small range of outputs.

Your cells have about 1 GB of ROM and a few megabytes of RAM.

“Galileo discovered the value of a lie — to figure it out without the friction and then put it back in.”

Propagators: Independent Stateless machines connecting stateful cells

Satisficing / monotonically increasing local information about a referent.

Synchronising problems in parallel computation go away.

EE, not CS, point of view. (and I daydreamed off into economic theories using this circuit-diagram thinking)

“I hate modern languages, even the ones I invent! … There are no names for intermediate parts [of expressions].”

Min 44. Maybe this is an insight into explaining statistics to programmers. Errorful processes go in; this would be like multiple inputs (maybe a distribution assumption, maybe a bound on the error, maybe an independence assumption or equal variances) — and an errorful result comes out. Just like division-of-integers has two outputs—quotient and remainder—so do statistical processes spit out a ton of outputs as well:—answer(s) like beta;’s, error estimates (p’s and t’s), and tons of different ways of looking at what might be wrong with the assumptions (Durbin-Watson, structural F statistic, White estimators). Of course you could turn these outputs into Boolean by saying like “alpha; <.05 goes to TRUE” — but really the continuous alpha score is better.

Expert reasoning in circuit diagrams as local reasoning between neighbouring pieces of the circuit diagram.

Improving measurements by making independent measurements of the same thing by different methods.

Tracking of provenance & shadow premises—….daydreaming: relationship to religious faith/scepticism.

Giggling when logic subsystems conflict.

Truth Maintenance Systems — the ability to back out

Finding lies — medical statistical results

Globally inconsistent worldviews that are locally consistent.

Aaaand, find me the consistent sub-worldviews that are consistent.

Nietzche's guide to technical support

Wed, 25 Apr 2012 10:02:52 -0400

Nietzche's guide to technical support:

“When a user is calling in need of help, don’t forget that he is a weakling. Only a loser would need to come groveling to you, begging for crumbs of help that may fall from your godlike lips. And he KNOWS that he is a loser in the race of the weak and the strong, that his kind is doomed to extinction. Therefore, show him no mercy. Treat him with the utter contempt that he deserves. It is the law of nature that you should do so.

Key Phrases:
“You aren’t very smart, are you?”
“I can’t believe you call yourself a programmer!”
“Our product is obviously too complex and advanced for you. Please desist from using it - you are soiling it.” “

ARM assembly Language

Mon, 23 Apr 2012 15:00:53 -0400

ARM assembly Language:

Pardon, I keep finding better explanations or different ways to say the same thing.
this is most likely the last ARM presentation posting. This contains a good explanation of rotating variables.

simple machines pdf arm instruction set

Mon, 23 Apr 2012 14:54:45 -0400

simple machines pdf arm instruction set:

ARM instruction set