Mark Reid mreid

## keybase.md

      
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                mreid
                / keybase.md
            
            
              Created
              July 15, 2014 01:46
            
          
      View keybase.md
  
      
    Keybase proof
I hereby claim:

I am mreid on github.
I am mreid (https://keybase.io/mreid) on keybase.
I have a public key whose fingerprint is 0290 8892 E023 A876 460B  D320 2B84 F83F 283D 58D8

To claim this, I am signing this object:

  
## arithmetic.py
# Example implementation of simple arithmetic coding in Python (2.7+).
#
# USAGE
#
#  python -i arithmetic.py
#  >>> m = {'a': 1, 'b': 1, 'c': 1}
#  >>> model = dirichlet(m)
#  >>> encode(model, "aabbaacc")
#  '00011110011110010'
#

## gitrm.sh
# One-liner to add files to a git changeset that have been already deleted from
# the filesystem. (Surely there must be an easier way?)
git status | ruby -ne '$_ =~ /deleted:\s+(.*)/; `git rm #{$1}` unless $1.nil?'

## crossval.sh
#!/usr/bin/perl -w
# -*-perl-*-
# $Id: crossval,v 1.1.1.1 2003/04/02 02:06:05 mreid Exp $
#
# NAME
# 		crossval - Run Aleph on a collection of cross validation sets.
#
# SYNOPSIS
#		crossval [--aleph ALEPH] [--yap YAP] [--param ALEPH_SETTING] [--set ALEPH_SETTING]
#				 EXP_BASE BACKGROUND DATA_PATTERN

## Tally.java
package demo;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;

## haskell-woes.txt
Running Snow Leopard 10.6.7 on a 2.66 GHz Intel Core 2 Duo iMac.

Installed XCode 4 from the App Store (previous had XCode 3 installed under 10.5).

----
$ uname -a
Darwin iMac.local 10.7.0 Darwin Kernel Version 10.7.0: Sat Jan 29 15:17:16 PST 2011; root:xnu-1504.9.37~1/RELEASE_I386 i386

$ gcc --version
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)

## lz78-encode.py
# LZ78 Encoding
#
# Performs LZ78 encoding on the standard input and writes result to standard output
# using algorithm described in MacKay textbook.
#
# Note:
#  - All input symbols are encoded using 7-bit ASCII.
#  - Pointer index is encoded using logarithmically increasing number of bits
#
# USAGE: python lz78-encode.py

## channel.py
# A command-line noisy channel
#
# USAGE: python channel.py BLOCK_SIZE FLIP_PROBABILITY
#
# EXAMPLE:
#    $ echo "0000000" | python channel.py 7 0.8
#    0000100
#
# AUTHOR: Mark Reid <mark.reid@anu.edu.au>
# CREATED: 2013-10-21

## received.txt
101110000011111111001001101101001010101001110011010000110100010111100111000000010111110000110101011011100000110000000101101100000101111010001001111000000000111000000011

## INSTALL-VW-OSX.md

      
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                mreid
                / INSTALL-VW-OSX.md
            
            
              Created
              January 29, 2012 21:59
            
              
                Install Vowpal Wabbit on Mac OS X Lion
              
          
      View INSTALL-VW-OSX.md
  
      
    The INSTALL instructions that come with Vowpal Wabbit appear not to work on Mac OS X Lion. Here's what I did to get it to compile. You will need the developer tools that come with the XCode installation.
The only dependency VW has is the boost C++ library. So first, download and install Boost
To install Boost, do the following:
$ cp ~/Downloads/boost_1_48_0.tar.bz2 ./
	# Example implementation of simple arithmetic coding in Python (2.7+).
	#
	# USAGE
	#
	# python -i arithmetic.py
	# >>> m = {'a': 1, 'b': 1, 'c': 1}
	# >>> model = dirichlet(m)
	# >>> encode(model, "aabbaacc")
	# '00011110011110010'
	#
	# One-liner to add files to a git changeset that have been already deleted from
	# the filesystem. (Surely there must be an easier way?)
	git status \| ruby -ne '$_ =~ /deleted:\s+(.*)/; `git rm #{$1}` unless $1.nil?'
	#!/usr/bin/perl -w
	# --perl--
	# $Id: crossval,v 1.1.1.1 2003/04/02 02:06:05 mreid Exp $
	#
	# NAME
	# crossval - Run Aleph on a collection of cross validation sets.
	#
	# SYNOPSIS
	# crossval [--aleph ALEPH] [--yap YAP] [--param ALEPH_SETTING] [--set ALEPH_SETTING]
	# EXP_BASE BACKGROUND DATA_PATTERN
	package demo;

	import java.io.BufferedReader;
	import java.io.FileReader;
	import java.io.IOException;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.Comparator;
	import java.util.HashMap;
	import java.util.List;
	Running Snow Leopard 10.6.7 on a 2.66 GHz Intel Core 2 Duo iMac.

	Installed XCode 4 from the App Store (previous had XCode 3 installed under 10.5).

	----
	$ uname -a
	Darwin iMac.local 10.7.0 Darwin Kernel Version 10.7.0: Sat Jan 29 15:17:16 PST 2011; root:xnu-1504.9.37~1/RELEASE_I386 i386

	$ gcc --version
	i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)
	# LZ78 Encoding
	#
	# Performs LZ78 encoding on the standard input and writes result to standard output
	# using algorithm described in MacKay textbook.
	#
	# Note:
	# - All input symbols are encoded using 7-bit ASCII.
	# - Pointer index is encoded using logarithmically increasing number of bits
	#
	# USAGE: python lz78-encode.py
	# A command-line noisy channel
	#
	# USAGE: python channel.py BLOCK_SIZE FLIP_PROBABILITY
	#
	# EXAMPLE:
	# $ echo "0000000" \| python channel.py 7 0.8
	# 0000100
	#
	# AUTHOR: Mark Reid <mark.reid@anu.edu.au>
	# CREATED: 2013-10-21