Book Image

Natural Language Processing Fundamentals

By : Sohom Ghosh, Dwight Gunning
Book Image

Natural Language Processing Fundamentals

By: Sohom Ghosh, Dwight Gunning

Overview of this book

If NLP hasn't been your forte, Natural Language Processing Fundamentals will make sure you set off to a steady start. This comprehensive guide will show you how to effectively use Python libraries and NLP concepts to solve various problems. You'll be introduced to natural language processing and its applications through examples and exercises. This will be followed by an introduction to the initial stages of solving a problem, which includes problem definition, getting text data, and preparing it for modeling. With exposure to concepts like advanced natural language processing algorithms and visualization techniques, you'll learn how to create applications that can extract information from unstructured data and present it as impactful visuals. Although you will continue to learn NLP-based techniques, the focus will gradually shift to developing useful applications. In these sections, you'll understand how to apply NLP techniques to answer questions as can be used in chatbots. By the end of this book, you'll be able to accomplish a varied range of assignments ranging from identifying the most suitable type of NLP task for solving a problem to using a tool like spacy or gensim for performing sentiment analysis. The book will easily equip you with the knowledge you need to build applications that interpret human language.
Table of Contents (10 chapters)

Summary

In this chapter, we learned about the motivations behind converting human language in the form of text and speech into mathematical structures such as scalars, vectors, matrices, and tensors. This helps machine learning algorithms to execute mathematical functions on them, detect patterns in language, and gain a sort of understanding of the meaning of the text. We also saw the different types of vector representation techniques, such as simple integer encoding, character-level encoding, one-hot encoding, and word encoding.

In the next chapter, we will look at the area of sentiment analysis, which is the automated understanding of tone or sentiment in text sources. Sentiment analysis uses some of the vector representation techniques that we saw in this chapter.