doc-similarity

NodeJS simple document similarity module. Support some popular similarity measurement.

NPM package

• Run npm install doc-similarity --save
• Require it in your project const docSimilarity = require('doc-similarity');
• Call it docSimilarity.wordFrequencySim(document1, document2, [similarityFunction])
• Example docSimilarity.wordFrequencySim("Hello World", "Hello John", docSimilarity.cosineSim)

Similarity function is optional parameter, default set to Cosine Similarity. It could be replaced by any user-created function.

Demo run in project folder

• Make sure to install the npm modules first npm install
• In the project, run node ./src/demo.js

Current Features (0.0.1)

Word Weighting

• Word Frequency

Similarity Measure

• Cosine
• Jaccard

To-do

• TF-IDF distance
• HTF-IDF distance
• Browser compatibility