David E. Barrera

16 Flips | 4 Magazines | 4 Likes | @dbarrerap | Keep up with David E. Barrera on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “David E. Barrera”

Pedro Domingos’ Master Algorithm: How machine learning is reshaping how we live.

Computers and the algorithms they run are precise, perfect, meticulously programmed, and austere. That’s the idea, anyway. But there’s a burgeoning, …

How to read File into String in Java 7, 8 with Example

Many times you want to <i>read contents of a file into String</i>, but, unfortunately, it was not a trivial job in Java, at least not until JDK 1.7. In Java …

How Tetris explains the promise of the ultimate algorithm

Pedro Domingos is a serious guy with big ambitions. He wrote his new book, The Master Algorithm, to drive interest in machine learning, which he believes could remake our lives for the better. But he also calls mastering Tetris, “one of the most useful things you could ever do.”<p>If you’re confused, …

An Introduction to Ruby's JSON Library

The <i>de facto</i> standard in data portability across web applications and services, JSON has a concise yet powerful syntax for sharing data across …

LED Current Control and The Arduino: Tutorial

Powering LEDs in Series<p>Those of you who have used a single 5mm LED with an Arduino probably have used a currently limiting resistor in series the …

Stop returning arrays (use objects instead)

When returning large amounts of data, it can be common to turn to a built-in PHP data structure: the array. But in object-oriented code, arrays make …

Microsoft Moves Toward Open Source as Linux Fills Its Cloud

In a perfect world, says Microsoft's Mark Russinovich, everyone would run Windows. But he's playing for laughs.<p>Sure, Russinovich wants people to run …

Linux

Astronomers discover the smallest known supermassive black hole

Here's a cosmic contradiction: A tiny supermassive black hole. Astronomers using the Magellan II telescope in Chile and<p>NASA’s Chandra X-ray Observatory have discovered the smallest supermassive black hole yet found at the center of a dwarf galaxy.<p>The findings, published by the Astrophysical Journal …

BDD in Laravel

This post was originally published in the community tutorials section of Semaphore CI, the hosted continuous integration and deployment service.<p>BDD …

GitHub launches desktop client to lure more developers

Looking to expand its already considerable user base, GitHub has introduced a new desktop GUI client that streamlines many of the functions of the …

Raspberry Pi To Get Firmware Driver In Linux 4.3, Closer To DRM Driver Support

The Raspberry Pi crew is looking to add a firmware driver for their hardware to the Linux 4.3 kernel.<p>The Raspberry Pi firmware driver is needed for …

Raspberry Pi

Arduino Powered Rubber Band Sentry Turret Is Not a Lie

You know that guy in the next cube is sneaking in when you are away and swiping packs of astronaut ice cream out of your desk. Thanks to [Kevin …

Save 99% on the Coding 101 bundle [Deals]

Saying “I really should learn to code” is like saying, “I really should start going to the gym” — We often say it before thinking of something else to do. This bundle of coding courses will leave you without any excuses, with more than 31 hours of stem-to-stern lessons covering everything from …

I2C Bus Splitting with a more Professional Touch

Last week, I covered some of the bitter details of an interesting hack that lets us split up the I²C clock line into multiple outputs with a …