https://github.com/UniversalAvenue/simhash-ex

Elixir implementation of Simhash
https://github.com/UniversalAvenue/simhash-ex

Last synced: about 2 months ago
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Elixir implementation of Simhash

• Host: GitHub
• URL: https://github.com/UniversalAvenue/simhash-ex
• Owner: UniversalAvenue
• Created: 2016-07-04T15:47:00.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2020-03-06T16:57:30.000Z (over 4 years ago)
• Last Synced: 2024-04-01T10:20:21.776Z (3 months ago)
• Language: Elixir
• Size: 16.6 KB
• Stars: 22
• Watchers: 11
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Lists

• awesome-elixir - simhash - Simhash implementation using Siphash and N-grams. (Algorithms and Data structures)
• freaking_awesome_elixir - Elixir - Simhash implementation using Siphash and N-grams. (Algorithms and Data structures)
• awesome-elixir - simhash - Simhash implementation using Siphash and N-grams. (Algorithms and Data structures)
• fucking-awesome-elixir - simhash - Simhash implementation using Siphash and N-grams. (Algorithms and Data structures)

README

        
# Simhash

An Elixir implementation of [Moses Charikar's](http://www.cs.princeton.edu/courses/archive/spring04/cos598B/bib/CharikarEstim.pdf) Simhash.

## Examples

```elixir

iex> Simhash.similarity("Universal Avenue", "Universe Avenue")

0.71875

iex> Simhash.similarity("hocus pocus", "pocus hocus")

0.8125

iex> Simhash.similarity("Sankt Eriksgatan 1", "S:t Eriksgatan 1")

0.8125

iex> Simhash.similarity("Purple flowers", "Green grass")

0.5625

```

By default trigrams (N-gram of size 3) are used as language features, but you can set a different N-gram size:

```elixir

iex> Simhash.similarity("hocus pocus", "pocus hocus", 1)

1.0

iex> Simhash.similarity("Sankt Eriksgatan 1", "S:t Eriksgatan 1", 6)

0.859375

iex> Simhash.similarity("Purple flowers", "Green grass", 6)

0.546875

```

## Installation

The package can be installed

by adding `simhash` to your list of dependencies in `mix.exs`:

```elixir

def deps do

  [

    {:simhash, "~> 0.1.2"}

  ]

end

```