AALEKH

function mat = label2mat(label, size)

if ~exist('size', 'var') || isempty(size)
    size = 10;
end

if label > size
    error('Label (%d) should be < size (%d).', label, size);
end

AALEKH

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

AALEKH

Economics & Software Development - Book List

The following books are ordered in descending order of Matthew's preference.

The Art of Strategy

by Avinash K. Dixit

Recommended by Ted Neward. A different perspective and writing style from the other volumes listed.

“I am hard pressed to think of another book that can match the combination of practical insights and reading enjoyment.”—Steven Levitt

AALEKH

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

AALEKH

FROM: http://benanne.github.io/2015/03/17/plankton.html

Meta-Tricks:
	- Use %10 for validation with STRATIFIED SAMPLING (my mistake)
	- Cyclic Pooling 
	- Leaky ReLU = max(x, a*x) learned a
		- reduces overfitting with a ~= 1/3
	- Orthogonal initialization http://arxiv.org/pdf/1312.6120v3.pdf
	- Use larger weight decay for larger models since otherwise some layers might diverge

AALEKH

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

AALEKH

#include <stdio.h>
#include <mysql_version.h>
#include <mysql/plugin.h>

struct st_mysql_daemon hello_daemon_plugin =
{ MYSQL_DAEMON_INTERFACE_VERSION  };

static FILE *fp;

int hello_daemon_plugin_init(void *p)

AALEKH

import "bytes"

func StreamToByte(stream io.Reader) []byte {
  buf := new(bytes.Buffer)
	buf.ReadFrom(stream)
	return buf.Bytes()
}

func StreamToString(stream io.Reader) string {
	buf := new(bytes.Buffer)

AALEKH

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <libwebsockets.h>


static int callback_http(struct libwebsocket_context *context,
                         struct libwebsocket *wsi,
                         enum libwebsocket_callback_reasons reason, void *user,

AALEKH

CREATE TABLE IF NOT EXISTS `country` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `iso` char(2) NOT NULL,
  `name` varchar(80) NOT NULL,
  `nicename` varchar(80) NOT NULL,
  `iso3` char(3) DEFAULT NULL,
  `numcode` smallint(6) DEFAULT NULL,
  `phonecode` int(5) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1;