thoughtfulml/examples

examples from "Thoughtful Machine Learning"

examples's Issues

RubyML list

Dear Matt,

I've recently added your project to our RubyML list: https://github.com/arbox/machine-learning-with-ruby

I wonder if you want to participate in the Ruby for ML network. You could do this in a very simple step by adding the rubyml topic to your GitHub repository. And you may want to spread a word on Twitter or on other media :)

Thank you for the project!

Conclusion on p. 54 of Thoughtful Machine Learning (2015)

Hello,

I need some hint on how you arrived at the following conclusion:

"At this point, you'll notice we reduced the orders needing fraud review from 1,000 to 40 (i.e., 4% of the total).

Many thanks.

No minitest

 2-k-nearest-neighbors git:(master) ✗ bundle exec rake 
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby -w -I"lib:lib" -I"/Library/Ruby/Gems/2.3.0/gems/rake-12.3.2/lib" "/Library/Ruby/Gems/2.3.0/gems/rake-12.3.2/lib/rake/rake_test_loader.rb" "test/lib/face_spec.rb" "test/lib/image_spec.rb" "test/lib/neighborhood_spec.rb" 
/Users/mordekay/Codes/examples/2-k-nearest-neighbors/test/lib/face_spec.rb:12: warning: assigned but unused variable - actual_md5
/Users/mordekay/Codes/examples/2-k-nearest-neighbors/test/lib/face_spec.rb:13: warning: assigned but unused variable - expected_md5

File does not exist: minitest/autorun

rake aborted!
Command failed with status (1): [ruby -w -I"lib:lib" -I"/Library/Ruby/Gems/2.3.0/gems/rake-12.3.2/lib" "/Library/Ruby/Gems/2.3.0/gems/rake-12.3.2/lib/rake/rake_test_loader.rb" "test/lib/face_spec.rb" "test/lib/image_spec.rb" "test/lib/neighborhood_spec.rb" ]
/Library/Ruby/Gems/2.3.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/cli/exec.rb:74:in `load'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/cli/exec.rb:74:in `kernel_load'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/cli/exec.rb:28:in `run'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/cli.rb:463:in `exec'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/vendor/thor/lib/thor.rb:387:in `dispatch'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/cli.rb:27:in `dispatch'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/vendor/thor/lib/thor/base.rb:466:in `start'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/cli.rb:18:in `start'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/exe/bundle:30:in `block in <top (required)>'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/lib/bundler/friendly_errors.rb:124:in `with_friendly_errors'
/Library/Ruby/Gems/2.3.0/gems/bundler-2.0.1/exe/bundle:22:in `<top (required)>'
/usr/local/bin/bundle:22:in `load'
/usr/local/bin/bundle:22:in `<main>'
Tasks: TOP => default => test
(See full trace by running task with --trace)
➜  2-k-nearest-neighbors git:(master) 

Sorry Help !!!
what should I do ?

p.56 - How did you obtain the 62.5% for P(Fraud|Gift, Promo)?

I only have your Ruby book and don't have your Python book yet, so maybe its covered there, but it would have been a big help to see this 62.5% explained. I guess I would need to understand what comprised the 'magical Z' as well.

no README

book page 35 the crow note:

All of the code for this example can be found on Github. Because Ruby is constantly changing, the README file should include the most up-to-date instructions on getting these code examples working.