| # 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) |
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 ./
| # LZ77 Encoding | |
| # | |
| # Simple implementation of Lempel-Ziv 77 (a.k.a. "Sliding Window") coding | |
| # as described in Section 13.4 of Cover & Thomas' "Information Theory". | |
| # | |
| # USAGE: python encode.py INPUT_STREAM | |
| # | |
| # EXAMPLE (from lectures): | |
| # $ python encode.py abbababbababbab | |
| # (0,a) |
| # 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 |
| # Hamming (7,4) Coding | |
| # | |
| # Reads binary stream from standard input and outputs Hamming (7,4) encoded | |
| # version to standard output. | |
| # | |
| # USAGE: python h74-encode.py | |
| # | |
| # EXAMPLE: | |
| # $ echo "0001" | python h74-encode.py | |
| # 1000101 |
| # 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 |
| 101110000011111111001001101101001010101001110011010000110100010111100111000000010111110000110101011011100000110000000101101100000101111010001001111000000000111000000011 |