Book Image

Hands-On Python Natural Language Processing

By : Aman Kedia, Mayank Rasu
4 (1)
Book Image

Hands-On Python Natural Language Processing

4 (1)
By: Aman Kedia, Mayank Rasu

Overview of this book

Natural Language Processing (NLP) is the subfield in computational linguistics that enables computers to understand, process, and analyze text. This book caters to the unmet demand for hands-on training of NLP concepts and provides exposure to real-world applications along with a solid theoretical grounding. This book starts by introducing you to the field of NLP and its applications, along with the modern Python libraries that you'll use to build your NLP-powered apps. With the help of practical examples, you’ll learn how to build reasonably sophisticated NLP applications, and cover various methodologies and challenges in deploying NLP applications in the real world. You'll cover key NLP tasks such as text classification, semantic embedding, sentiment analysis, machine translation, and developing a chatbot using machine learning and deep learning techniques. The book will also help you discover how machine learning techniques play a vital role in making your linguistic apps smart. Every chapter is accompanied by examples of real-world applications to help you build impressive NLP applications of your own. By the end of this NLP book, you’ll be able to work with language data, use machine learning to identify patterns in text, and get acquainted with the advancements in NLP.
Table of Contents (16 chapters)
1
Section 1: Introduction
4
Section 2: Natural Language Representation and Mathematics
9
Section 3: NLP and Learning

Translating between languages using Seq2Seq modeling

English is the most spoken language in the world and French is an official language in 29 countries. As part of this exercise, we will build a French-to-English translator. Let's begin:

The dataset used here is sourced from http://www.manythings.org/anki/
  1. As with any other exercise, we begin by importing the libraries that we need to build our French-to-English translator:
import pandas as pd
import string
import re
import io
import numpy as np
from unicodedata import normalize
import keras, tensorflow
from keras.models import Model
from keras.layers import Input, LSTM, Dense
  1. Now that we have imported our libraries, let's read the dataset using the following code block:
def read_data(file):
data = []
with io.open(file, 'r') as file:
for entry in file:
entry = entry.strip()
data.append(entry)
return data
data = read_data('dataset/bilingual_pairs.txt')
  1. Let's figure...