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In short, the algorithms are trying to accomplish different goals. K-nearest neighbor is a subset of supervised learning classification (or regression) algorithms (it takes a bunch of labeled points and uses them to learn how to label other points). It is supervised because you are trying to classify a point based on the known classification…

In this post we will introduce how to install MiKTeX plus TeXstudio on windows. This is very easy! You simply have to accept just about all the default settings. Step 1: To begin with you have to go to the MikTeX website and navigate at the downloading page. From there you could pick the appropriate…

An obfuscation technique (also called Polymorphism) is a way of constructing a malware that make it more difficult to detect. If a malware is hard to detect, it is likely to spread more widely. The following are commonly used obfuscation techniques: Self-Encryption and Self-Decryption. Some viruses can encrypt and decrypt their virus code bodies, concealing them from direct…

Markdown, originally written as a Perl script by John Gruber and Aaron Swartz in 2004, has caught fire and the technology has exploded into many different forms of “text to HTML” markup engines. The original Markdown code has largely been unchanged through the years, while alternative versions have come to build on it. Since the creators…

In this post i will present you my first double sided custom pcb made using a simple but “effective” CNC 3020. I’m a CNC newb so my milling process, and the following outline uses what I’ve concluded to be the most common tools. These tools are Eagle CAD, PCB-gcode, Mach 3 CNC, 0.1mm 30deg V-Shaped Engraving Bit,…

What Is Inverse Kinematics? Kinematics is the science of motion. In a two-joint robotic arm, given the angles of the joints, the kinematics equations give the location of the tip of the arm. Inverse kinematics refers to the reverse process. Given a desired location for the tip of the robotic arm, what should the angles…

Two undergraduate students at the University of Washington have created a pair of smart gloves that can translate American Sign Language (ASL) automatically into text or speech. Designed to help bridge the communication gap between the Deaf and hearing communities, the SignAloud gloves use sophisticated sensors to recognize ASL gestures. They were recently awarded a…