POS Tagger and lemmatizer for javascript
npm install nlp-js-tools-englishInspired by the french similar lib.
This package is partly based on the Snowball stemming algorythm and the javascript adaptation by _Kasun Gajasinghe, University of Moratuwa_
This package offers 4 NLP tools in javascript for french language :
* Tokenizing
* POS Tagging
* Lemmatizing
* Stemming
npm install nlp-js-tools-english
Usage
var NlpjsTEn = require('nlp-js-tools-english');
Corpus to use
var corpus = "Internet Computer price makes a strong bullish comeback, targeting $10.44, as the Federal Reserve leaves interest rates unchanged at 5.25% - 5.5%.";
Configs
var config = {
tagTypes: ['nat', 'vir', 'vre', 'common', 'nbr'],
strictness: false,
minimumLength: 3,
debug: true
};
New instance with specific corpus and configs
var nlpToolsEn = new NlpjsTEn(corpus, config);
These are the available methods, self-explanatory.
Note: The sentence that is passed into the class earlier is automaticaly tokenized.
var tokenizedWords = nlpToolsEn.tokenized;
var posTaggedWords = nlpToolsEn.posTagger();
var lemmatizedWords = nlpToolsEn.lemmatizer();
var stemmedWords = nlpToolsEn.stemmer();
var stemmedWord = nlpToolsEn.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 |
| 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.