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https://github.com/bastienbot/nlp-js-tools-french

POS Tagger, lemmatizer and stemmer for french language in javascript
https://github.com/bastienbot/nlp-js-tools-french

lemmatization lemmatizer nlp postagging postgresql stemmer stemming tokenization tokenizer

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POS Tagger, lemmatizer and stemmer for french language in javascript

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# NLP Javascript tools for french language
#### Tokenize, POS Tagger, lemmatizer and stemmer

This package is partly based on the [Snowball stemming algorythm](https://snowballstem.org/algorithms/french/stemmer.html) and the [javascript adaptation](http://snowball.tartarus.org/otherlangs/french_javascript.txt) by _Kasun Gajasinghe, University of Moratuwa_

This package offers 4 NLP tools in javascript for french language :
* Tokenizing
* POS Tagging
* Lemmatizing
* Stemming

## Install
```
npm install nlp-js-tools-french
```

## Usage
```
var NlpjsTFr = require('nlp-js-tools-french');
```
Corpus to use
```
var corpus = "Elle semble se nourrir essentiellement de plancton, et de hotdog.";
```
Configs
```
var config = {
tagTypes: ['art', 'ver', 'nom'],
strictness: false,
minimumLength: 3,
debug: true
};
```

New instance with specific corpus and configs
```
var nlpToolsFr = new NlpjsTFr(corpus, config);
```

These are the available methods, self-explanatory.
**Note:** The sentence that is passed into the class earlier is automaticaly tokenized.
```
var tokenizedWords = nlpToolsFr.tokenized;
var posTaggedWords = nlpToolsFr.posTagger();
var lemmatizedWords = nlpToolsFr.lemmatizer();
var stemmedWords = nlpToolsFr.stemmer();
var stemmedWord = nlpToolsFr.wordStemmer("aléatoirement");
```

## Attributes

#### config
Shows config
#### tokenized
```
["semble", "nourrir", "de"]
```

## Methods return

#### posTagger()
```
[{
"id": 1,
"word": "semble",
"pos": [
"VER",
"VER"
]
},
{
"id": 2,
"word": "nourrir",
"pos": [
"VER"
]
},
{
"id": 3,
"word": "de",
"pos": [
"NOM",
"ART:def",
"PRE"
]
}]
```
#### lemmatizer()
```
[{
"id": 1,
"word": "semble",
"lemma": "sembler"
},
{
"id": 2,
"word": "nourrir",
"lemma": "nourrir"
},
{
"id": 3,
"word": "de",
"lemma": "de"
}]
```
#### stemmer()
```
[{
"id": 1,
"word": "semble",
"stem": "sembl"
},
{
"id": 3,
"word": "nourrir",
"stem": "nourr"
},
{
"id": 5,
"word": "de",
"stem": "de"
}]
```

#### wordStemmer(word)
```
{
word: "aléatoirement",
stem: "aléatoir"
}
```

## Config

Option | Type | Default | Description
--- | --- | --- | ---
tagTypes | Array | `["adj", "adv", "art", "con", "nom", "ono", "pre", "ver", "pro"]` | List of dictionnaries the package will look in, in case you only need verbs or nouns, both or whatever else. If a word does not belong to any type, it is tagged as `"UNK"`.
strictness | Bool | `false` | If you set the strictness to `true` and try to POS Tag the word `generalement`, it will fail because the word is missine its accents. On the other hand, trying to POS Tag the word `dé` with the strictness set to `false` well return the types `art`, `pre` and `nom` because the word will match `de` in these dictionnaries.
minimumLength | Int | 1 | Algorythms will ignore words that are shorter than this parameter.
debug | Bool | false | Enable console debug