Principle of image search

Principle of image search:

http://www.ruanyifeng.com/blog/2011/07/principle_of_similar_image_search.html
http://www.ruanyifeng.com/blog/2013/03/similar_image_search_part_ii.html

From blog of Ruan YiFeng.

Emscripten: An LLVM-to-JavaScript Compiler

This is very impressive.


Emscripten

Emscripten: An LLVM-to-JavaScript Compiler
Project main site: http://kripken.github.io/emscripten-site/
Wiki site: https://github.com/kripken/emscripten/wiki
Github project: https://github.com/kripken/emscripten


asm.js

An extraordinarily optimizable, low-level subset of JavaScript.
http://asmjs.org/

Fun programming - graphics and animation

http://funprogramming.org/

short programs for graphics and animation.

Standard and nested/hybrid RAID levels

[1] http://en.wikipedia.org/wiki/Standard_RAID_levels

It's good to know about RAID levels 1, 2, 3, 4, 5, 6.

[2] http://en.wikipedia.org/wiki/Nested_RAID_levels

For nested RAID levels (hybrid RAID), which combines 2 or more standard RAID levels, there are:
01, 03, 10, 50, 60, 100.

In [2], it says:

According to manufacturer specifications and official independent benchmarks,^[8][9][10] in most cases RAID 10 provides better throughput and latency than all other RAID levels except RAID 0 (which wins in throughput). Thus, it is the preferable RAID level for I/O-intensive applications such as database, email, and web servers, as well as for any other use requiring high disk performance.^[11]

So RAID 10 seems a widely used configuration.

HTML5 - Video and Canvas

http://html5doctor.com/video-canvas-magic/

HTML5

W3C released HTML5 standard in 10/29/2014 after 8 years of effort.

Html5 provides lots of new features that make it easier to create web applications with rich features.

Notable new features include support for multimedia (canvas, audio, video, svg), real time communication (websocket), local storage, css3, and many new semantic tags.

[1] Baidu Baike: Html5
[2] HTML5 in China大会综述 2011
[3] wiki: Html5
[4] HTML5梦工场