This repository is private.
All pages are served over SSL and all pushing and pulling is done over SSH.
No one may fork, clone, or view it unless they are added as a member.
Every repository with this icon (
) is private.
Every repository with this icon (
This repository is public.
Anyone may fork, clone, or view it.
Every repository with this icon (
) is public.
Every repository with this icon (
| name | age | message | |
|---|---|---|---|
| |
README.rdoc | ||
| |
diy-inverted-index.rb | ||
| |
pagerank-gsl.rb | ||
| |
pagerank-n-web.rb | ||
| |
pagerank-zipf-web.rb | ||
| |
simple-ferret.rb | ||
| |
web-ferret.rb | ||
| |
web/ |
README.rdoc
Computing PageRank in Ruby
Notes & code from RailsConf 2009 presentation: en.oreilly.com/rails2009/public/schedule/detail/7966
Slides: bit.ly/railsconf-pagerank
Example:
# page 1 -> page 2 (0.33)
# page 2 -> page 3 (0.33)
# page 3 -> page 1 (0.33)
puts "Circular: ", pagerank(Matrix[[0,0,1], [0,0,1], [1,0,0]])
# page 1 -> page 3 (0.05) # page 1 & page 2 have minimal postrank values
# page 2 -> page 3 (0.05) # min value = min(t * Teleport Vector)
# page 3 -> page 3 (0.09) # for uniform teleport vector, min = t * (1/N)
puts "Star: ", pagerank(Matrix[[0,0,0], [0,0,0], [1,1,1]])
# page 1 -> page 2, page 3 (0.05)
# page 2 -> page 3 (0.07)
# page 3 -> page 3, page 3 (0.87)
puts "Converge: ", pagerank(Matrix[[0,0,0], [0.5,0,0], [0.5,1,1]])
# page 1 -> page 1, page 2 (0.18)
# page 2 -> page 1, page 3 (0.13)
# page 3 -> page 3 (0.69)
puts "Linked:", pagerank(Matrix[[0.5,0.5,0], [0.5,0,0], [0,0.5,1.0]])








