https://github.com/ivanshamatov/slopy

Attempt to implement slope one collaborative filtering algorithm using Ruby C API, as a native extension
https://github.com/ivanshamatov/slopy

Last synced: about 1 month ago
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Attempt to implement slope one collaborative filtering algorithm using Ruby C API, as a native extension

• Host: GitHub
• URL: https://github.com/ivanshamatov/slopy
• Owner: IvanShamatov
• Created: 2013-12-16T11:32:00.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2013-12-16T11:32:56.000Z (about 11 years ago)
• Last Synced: 2024-10-14T02:13:03.271Z (2 months ago)
• Language: C
• Size: 109 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Slopy

```Slopy::Calculator``` is attempt to implement slope one collaborative filtering algorithm using Ruby C API, as a native extension.

## Methods

```ruby

Slopy::Calculator.cos(vector1, vector2)

# will calculate cosine similarity for two vectors

Slopy::Calculator.matrix(array_of_vectors)

# will calculate cosine similarity for each pair of vectors. 

# Attention: O(n*(n-1)/2)

```

## Installation

```

$ ruby ext/slopy/extconf.rb

$ rake compile 

$ irb -r ./lib/slopy