nlp-id is a collection of modules which provides various functions for Natural Language Processing for Bahasa Indonesia. This repository contains all source code related to NLP services.
To install nlp-id, use the following command:
$ pip install nlp-id
Description on how to use the lemmatizer, tokenizer, POS-tagger, etc. will be explained in more detail in this section.
Lemmatizer is used to get the root words from every word in a sentence.
from nlp_id.lemmatizer import Lemmatizer
lemmatizer = Lemmatizer()
lemmatizer.lemmatize('Saya sedang mencoba')
# saya sedang coba
Tokenizer is used to convert text into tokens of word, punctuation, number, date, email, URL, etc. There are two kinds of tokenizer in this repository, standard tokenizer and phrase tokenizer. The standard tokenizer tokenizes the text into separate tokens where the word tokens are single-word tokens.
from nlp_id.tokenizer import Tokenizer
tokenizer = Tokenizer()
tokenizer.tokenize('Lionel Messi pergi ke pasar di daerah Jakarta Pusat.')
# ['Lionel', 'Messi', 'pergi', 'ke', 'pasar', 'di', 'daerah', 'Jakarta', 'Pusat', '.']
The phrase tokenizer tokenizes the text into separate tokens where the word tokens are phrases (single or multi-word tokens).
from nlp_id.tokenizer import PhraseTokenizer
tokenizer = PhraseTokenizer()
tokenizer.tokenize('Lionel Messi pergi ke pasar di daerah Jakarta Pusat.')
# ['Lionel Messi', 'pergi', 'ke', 'pasar', 'di', 'daerah', 'Jakarta Pusat', '.']
POS tagger is used to obtain the Part-Of-Speech tag from a text. There are two kinds of POS tagger in this repository, standard POS tagger and phrase POS tagger. The tokens in standard POS Tagger are single-word tokens, while the tokens in phrase POS Tagger are phrases (single or multi-word tokens).
from nlp_id.postag import PosTag
postagger = PosTag()
postagger.get_pos_tag('Lionel Messi pergi ke pasar di daerah Jakarta Pusat.')
# [('Lionel', 'NNP'), ('Messi', 'NNP'), ('pergi', 'VB'), ('ke', 'IN'), ('pasar', 'NN'), ('di', 'IN'), ('daerah', 'NN'),
('Jakarta', 'NNP'), ('Pusat', 'NNP'), ('.', 'SYM')]
postagger.get_phrase_tag('Lionel Messi pergi ke pasar di daerah Jakarta Pusat.')
# [('Lionel Messi', 'NP'), ('pergi', 'VP'), ('ke', 'IN'), ('pasar', 'NN'), ('di', 'IN'), ('daerah', 'NN'),
('Jakarta Pusat', 'NP'), ('.', 'SYM')]
Description of tagset used for POS Tagger:
| No. | Tag | Description | Example |
|---|---|---|---|
| 1 | ADV | Adverbs. Includes adverb, modal, and auxiliary verb | sangat, hanya, justru, boleh, harus, mesti |
| 2 | CC | Coordinating conjunction. Coordinating conjunction links two or more syntactically equivalent parts of a sentence. Coordinating conjunction can link independent clauses, phrases, or words. | dan, tetapi, atau |
| 3 | DT | Determiner/article. A grammatical unit which limits the potential referent of a noun phrase, whose basic role is to mark noun phrases as either definite or indefinite. | para, sang, si |
| 4 | FW | Foreign word. Foreign word is a word which comes from foreign language and is not yet included in Indonesian dictionary | online, e-commerce |
| 5 | IN | Preposition. A preposition links word or phrase and constituent in front of that preposition and results prepositional phrase. | dalam, dengan, di, ke |
| 6 | JJ | Adjective. Adjectives are words which describe, modify, or specify some properties of the head noun of the phrase | bersih, panjang, jauh, marah |
| 7 | NEG | Negation | tidak, belum, jangan |
| 8 | NN | Noun. Nouns are words which refer to human, animal, thing, concept, or understanding | meja, kursi, monyet, perkumpulan |
| 9 | NNP | Proper Noun. Proper noun is a specific name of a person, thing, place, event, etc. | Indonesia, Jakarta, Piala Dunia, Idul Fitri, Jokowi |
| 10 | NUM | Number. Includes cardinal and ordinal number | 9876, 2019, 0,5, empat |
| 11 | PR | Pronoun. Includes personal pronoun and demonstrative pronoun | saya, kami, kita, kalian, ini, itu |
| 12 | RP | Particle. Particle which confirms interrogative, imperative, or declarative sentences | pun, lah, kah |
| 13 | SC | Subordinating Conjunction. Subordinating conjunction links two or more clauses and one of the clauses is a subordinate clause. | sejak, jika, seandainya, dengan, bahwa, yang |
| 14 | SYM | Symbols and Punctuations | +,%,@ |
| 15 | UH | Interjection. Interjection expresses feeling or state of mind and has no relation with other words syntactically. | ayo, mari, aduh |
| 16 | VB | Verb. Includes transitive verbs, intransitive verbs, active verbs, passive verbs, and copulas. | tertidur, bekerja, membaca |
| 17 | WH | Question words | siapa, apa, kapan, bagaimana |
| 18 | ADJP | Adjective Phrase. A group of words headed by an adjective that describes a noun or a pronoun | sangat tinggi |
| 19 | DP | Date Phrase. Date written with whitespaces | 1 Januari 2020 |
| 20 | NP | Noun Phrase. A phrase that has a noun (or indefinite pronoun) as its head | Jakarta Pusat, Lionel Messi |
| 21 | NUMP | Number Phrase. | 10 juta |
| 22 | VP | Verb Phrase. A syntactic unit composed of at least one verb and its dependents | tidak makan |
nlp-id also provide list of Indonesian stopword.
from nlp_id.stopword import StopWord
stopword = StopWord()
stopword.get_stopword()
# [{list_of_nlp_id_stopword}]
Stopword Removal is used to remove every Indonesian stopword from the given text.
from nlp_id.stopword import StopWord
text = "Lionel Messi pergi Ke pasar di area Jakarta Pusat" # single sentence
stopword = StopWord()
stopword.remove_stopword(text)
# Lionel Messi pergi pasar area Jakarta Pusat
paragraph = "Lionel Messi pergi Ke pasar di area Jakarta Pusat itu. Sedangkan Cristiano Ronaldo ke pasar Di area Jakarta Selatan. Dan mereka tidak bertemu begini-begitu."
stopword.remove_stopword(text)
# Lionel Messi pergi pasar area Jakarta Pusat. Cristiano Ronaldo pasar area Jakarta Selatan. bertemu.
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