node-rake-v2

node-rake-v2

A NodeJS implementation of the Rapid Automatic Keyword Extraction algorithm.

Note: New version of existing NPM - https://www.npmjs.com/package/node-rake

• New version node-rake-v2 has some below fixes, improvements and some new features. -
  • https://github.com/waseem18/node-rake/issues/26
  • https://github.com/waseem18/node-rake/issues/24

Installation

npm install node-rake-v2

Usage

rake.generate(text, options);

The options param is an object that allows to pass custom params to generate method. Options:

• stopwords: Optional. An array containing a custom stopwords list. By default, the method uses a stopwords list which comes along (take a look at Stopwords source).

• removeDuplicates: Optional. A flag to remove duplicate values. By default, the method return duplicate keywords but if this flag is true then it will remove duplicate values and return keywords in lowercase.

rake.addStopWords(stopwords);
// rake.addStopWords(['for', 'the', 'a', 'stands', 'test', 'man', 'woman']);

You can add more stop words in existing stopwords list which comes along with this module.

If you want to manage stopwords list in object scope then you can use this module as following:

const NodeRakeV2 = require('node-rake-v2').NodeRakeV2;

const node_rake_v2 = new NodeRakeV2();
node_rake_v2.addStopWords(['for', 'the', 'a', 'stands', 'test', 'man', 'woman']);
const keywords = node_rake_v2.generate("LDA stands for Latent Dirichlet Allocation");

Example of usage:

const rake = require('node-rake-v2');
const keywords = rake.generate("LDA stands for Latent Dirichlet Allocation");
// it'll output: [ 'Latent Dirichlet Allocation', 'LDA stands' ]

//or

const myStopwords = ['for', 'the', 'a', 'stands', 'test', 'man', 'woman'];
const opts = {stopwords: myStopwords};

const keywords = rake.generate("LDA stands for Latent Dirichlet Allocation", opts);
// it'll output: [ 'Latent Dirichlet Allocation', 'LDA' ]

Algorithm sources:

1.https://www.researchgate.net/publication/227988510_Automatic_Keyword_Extraction_from_Individual_Documents 2.https://www.ijarcsse.com/docs/papers/Volume_6/5_May2016/V6I5-0392.pdf

Stopwords source:

1. https://github.com/hbsardhara09/node-rake-v2/blob/master/stopWords.txt

Note

New version of existing NPM - https://www.npmjs.com/package/node-rake