jaydonnell

#!/bin/bash                                                                                                                                            

# run this from your home directory

mkdir -p projects
cd projects
git clone git://github.com/technomancy/emacs-starter-kit.git
cd ..
ln -s projects/emacs-starter-kit .emacs.d

jaydonnell

class Jay
  def talk
    puts 'hi'
  end
end

def make_say(msg, &b)
  Jay.send(:alias_method, :orig_talk, :talk)
  Jay.send(:define_method, :talk) { puts msg }
  

jaydonnell

class Jay
  def a; puts 'a' end
end

class Jay
  define_method(:b) { puts 'b' }
end

Jay.class.send(:define_method, :c) { puts 'c' }

jaydonnell

gem "sinatra", "0.9.4"
gem "scrappy", "0.1", :git => "git://internal.com/scrappy/mainline.git"

jaydonnell

require 'rubygems'
require 'sinatra'

configure do
  set :data, "none"
end

before do
    content_type 'text/plain', :charset => 'utf-8'
    request.env['PATH_INFO'].gsub!(/\/$/,'')

jaydonnell

def debug_line(*list)
    ret = "Debug: "
    0.step(list.length - 2, 2) do |x|
        label, value = list[x,x+2]
        ret += "#{label} = '#{value}', "
    end
    puts ret
end

debug_line("a", 10, "b", 20)

jaydonnell

irb(main):011:0> a = "abcd"
=> "abcd"
irb(main):012:0> a[1,1] = a[2,1]
=> "c"
irb(main):013:0> a
=> "accd"

jaydonnell

  # myapp.rb
  require 'rubygems'
  require 'sinatra'
  get '/' do
    'Hello world!'
  end

jaydonnell

Yes sorry.

Basically what we are trying is to constraint the effect of the raw frequency (saturate the frequency).
In Lucene this is carried out with the root square of the frequency, another classical approach
is to use the log. With both approaches we avoid giving a linear 'importance' to the frequency.

BM25 is a bit tricky, it parametrises the 'saturation' of the frequency with a parameter k1, with the
equation weight(t)/(weight(t)+k1). Usually k1 is fixed to 2, but it can be fixed by collection.

jaydonnell

#!/bin/bash
# backup your delicious bookmarks
curl -k --user `cat password.txt` -o backup.xml -O 'https://api.del.icio.us/v1/posts/all'