Lingualytics : Easy codemixed analytics

Lingualytics is a Python library for dealing with code mixed text.
Lingualytics is powered by powerful libraries like Pytorch, Transformers, Texthero, NLTK and Scikit-learn.

Features

1. Preprocessing

   • Remove stopwords
   • Remove punctuations, with an option to add punctuations of your own language
   • Remove words less than a character limit

2. Representation

   • Find n-grams from given text

3. NLP

   • Classification using PyTorch
     • Train a classifier on your data to perform tasks like Sentiment Analysis
     • Evaluate the classifier with metrics like accuracy, f1 score, precision and recall
     • Use the trained tokenizer to tokenize text
   • Some pretrained Huggingface models trained on codemixed datasets you can use
     • bert-base-multilingual-codemixed-cased-sentiment

Installation

Use the package manager pip to install lingualytics.

pip install lingualytics

Usage

Preprocessing

from lingualytics.preprocessing import remove_lessthan, remove_punctuation, remove_stopwords
from lingualytics.stopwords import hi_stopwords,en_stopwords
from texthero.preprocessing import remove_digits
import pandas as pd
df = pd.read_csv(
   "https://github.com/lingualytics/py-lingualytics/raw/master/datasets/SAIL_2017/Processed_Data/Devanagari/validation.txt", header=None, sep='\t', names=['text','label']
)
# pd.set_option('display.max_colwidth', None)
df['clean_text'] = df['text'].pipe(remove_digits) \
                                    .pipe(remove_punctuation) \
                                    .pipe(remove_lessthan,length=3) \
                                    .pipe(remove_stopwords,stopwords=en_stopwords.union(hi_stopwords))
print(df)

Classification

The train data path should have 4 files - train.txt - validation.txt - test.txt

You can just download datasets/SAIL_2017/Processed Data/Devanagari from the Github repository to try this out.

from lingualytics.learner import Learner

learner = Learner(model_type = 'bert',
                model_name = 'bert-base-multilingual-cased',
                dataset = 'SAIL-2017')
learner.fit()

Find topmost n-grams

from lingualytics.representation import get_ngrams
import pandas as pd
df = pd.read_csv(
   "https://github.com/jbesomi/texthero/raw/master/dataset/bbcsport.csv"
)

ngrams = get_ngrams(df['text'],n=2)

print(ngrams[:10])

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

License

MIT