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Mastering NLP from Foundations to LLMs
Mastering NLP from Foundations to LLMs

Mastering NLP from Foundations to LLMs: Apply advanced rule-based techniques to LLMs and solve real-world business problems using Python

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Profile Icon Gazit Profile Icon Meysam Ghaffari
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Full star icon Full star icon Full star icon Full star icon Half star icon 4.9 (24 Ratings)
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Arrow left icon
Profile Icon Gazit Profile Icon Meysam Ghaffari
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€21.99 €31.99
Full star icon Full star icon Full star icon Full star icon Half star icon 4.9 (24 Ratings)
eBook Apr 2024 340 pages 1st Edition
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Mastering NLP from Foundations to LLMs

Navigating the NLP Landscape: A Comprehensive Introduction

This book is aimed at helping professionals apply natural language processing (NLP) techniques to their work, whether they are working on NLP projects or using NLP in other areas, such as data science. The purpose of the book is to introduce you to the field of NLP and its underlying techniques, including machine learning (ML) and deep learning (DL). Throughout the book, we highlight the importance of mathematical foundations, such as linear algebra, statistics and probability, and optimization theory, which are necessary to understand the algorithms used in NLP. The content is accompanied by code examples in Python to allow you to pre-practice, experiment, and generate some of the development presented in the book.

The book discusses the challenges faced in NLP, such as understanding the context and meaning of words, the relationships between them, and the need for labeled data. The book also mentions the recent advancements in NLP, including pre-trained language models, such as BERT and GPT, and the availability of large amounts of text data, which has led to improved performance on NLP tasks.

The book will engage you by discussing the impact of language models on the field of NLP, including improved accuracy and effectiveness in NLP tasks, the development of more advanced NLP systems, and accessibility to a broader range of people.

We will be covering the following headings in the chapter:

  • What is natural language processing?
  • Initial strategies in the machine processing of natural language
  • A winning synergy – the coming together of NLP and ML
  • Introduction to math and statistics in NLP

Who this book is for

The target audience of the book is professionals who work with text as part of their projects. This may include NLP practitioners, who may be beginners, as well as those who do not typically work with text.

What is natural language processing?

NLP is a field of artificial intelligence (AI) focused on the interaction between computers and human languages. It involves using computational techniques to understand, interpret, and generate human language, making it possible for computers to understand and respond to human input naturally and meaningfully.

The history and evolution of natural language processing

The history of NLP is a fascinating journey through time, tracing back to the 1950s, with significant contributions from pioneers such as Alan Turing. Turing’s seminal paper, Computing Machinery and Intelligence, introduced the Turing test, laying the groundwork for future explorations in AI and NLP. This period marked the inception of symbolic NLP, characterized by the use of rule-based systems, such as the notable Georgetown experiment in 1954, which ambitiously aimed to solve machine translation by generating a translation of Russian content into English (see https://en.wikipedia.org/wiki/Georgetown%E2%80%93IBM_experiment). Despite early optimism, progress was slow, revealing the complexities of language understanding and generation.

The 1960s and 1970s saw the development of early NLP systems, which demonstrated the potential for machines to engage in human-like interactions using limited vocabularies and knowledge bases. This era also witnessed the creation of conceptual ontologies, crucial for structuring real-world information in a computer-understandable format. However, the limitations of rule-based methods led to a paradigm shift in the late 1980s towards statistical NLP, fueled by advances in ML and increased computational power. This shift enabled more effective learning from large corpora, significantly advancing machine translation and other NLP tasks. This paradigm shift not only represented a technological and methodological advancement but also underscored a conceptual evolution in the approach to linguistics within NLP. In moving away from the rigidity of predefined grammar rules, this transition embraced corpus linguistics, a method that allows machines to “perceive” and understand languages through extensive exposure to large bodies of text. This approach reflects a more empirical and data-driven understanding of language, where patterns and meanings are derived from actual language use rather than theoretical constructs, enabling more nuanced and flexible language processing capabilities.

Entering the 21st century, the emergence of the web provided vast amounts of data, catalyzing research in unsupervised and semi-supervised learning algorithms. The breakthrough came with the advent of neural NLP in the 2010s, where DL techniques began to dominate, offering unprecedented accuracy in language modeling and parsing. This era has been marked by the development of sophisticated models such as Word2Vec and the proliferation of deep neural networks, driving NLP towards more natural and effective human-computer interaction. As we continue to build on these advancements, NLP stands at the forefront of AI research, with its history reflecting a relentless pursuit of understanding and replicating the nuances of human language.

In recent years, NLP has also been applied to a wide range of industries, such as healthcare, finance, and social media, where it has been used to automate decision-making and enhance communication between humans and machines. For example, NLP has been used to extract information from medical documents, analyze customer feedback, translate documents between languages, and search through enormous amounts of posts.

Initial strategies in the machine processing of natural language

Traditional methods in NLP consist of text preprocessing, which is synonymous with text preparation, which is then followed by applying ML methods. Preprocessing text is an essential step in NLP and ML applications. It involves cleaning and transforming the original text data into a form that can be easily understood and analyzed by ML algorithms. The goal of preprocessing is to remove noise and inconsistencies and standardize the data, making it more suitable for advanced NLP and ML methods.

One of the key benefits of preprocessing is that it can significantly improve the performance of ML algorithms. For example, removing stop words, which are common words that do not carry much meaning, such as “the” and “is,” can help reduce the dimensionality of the data, making it easier for the algorithm to identify patterns.

Take the following sentence as an example:

I am going to the store to buy some milk and bread.

After removing the stop words, we have the following:

going store buy milk bread.

In the example sentence, the stop words “I,” “am,” “to,” “the,” “some,” and “and” do not add any additional meaning to the sentence and can be removed without changing the overall meaning of the sentence. It should be emphasized that the removal of stop words needs to be tailored to the specific objective, as the omission of a particular word might be trivial in one context but detrimental in another.

Additionally, stemming and lemmatization, which reduce words to their base forms, can help reduce the number of unique words in the data, making it easier for the algorithm to identify relationships between them, which will be explained completely in this book.

Take the following sentence as an example:

The boys ran, jumped, and swam quickly.

After applying stemming, which reduces each word to its root or stem form, disregarding word tense or derivational affixes, we might get:

The boy ran, jump, and swam quick.

Stemming simplifies the text to its base forms. In this example, “ran,” “jumped,” and “swam” are reduced to “ran,” “jump,” and “swam,” respectively. Note that “ran” and “swam” do not change, as stemming often results in words that are close to their root form but not exactly the dictionary base form. This process helps reduce the complexity of the text data, making it easier for machine learning algorithms to match and analyze patterns without getting bogged down by variations of the same word.

Take the following sentence as an example:

The boys ran, jumped, and swam quickly.

After applying lemmatization, which considers the morphological analysis of the words, aiming to return the base or dictionary form of a word, known as the lemma, we get:

The boy run, jump, and swim quickly.

Lemmatization accurately converts “ran,” “jumped,” and “swam” to “run,” “jump,” and “swim.” This process takes into account the part of speech of each word, ensuring that the reduction to the base form is both grammatically and contextually appropriate. Unlike stemming, lemmatization provides a more precise reduction to the base form, ensuring that the processed text remains meaningful and contextually accurate. This enhances the performance of NLP models by enabling them to understand and process language more effectively, reducing the dataset’s complexity while maintaining the integrity of the original text.

Two other important aspects of preprocessing are data normalization and data cleaning. Data normalization includes converting all text to lowercase, removing punctuation, and standardizing the format of the data. This helps to ensure that the algorithm does not treat different variations of the same word as separate entities, which can lead to inaccurate results.

Data cleaning includes removing duplicate or irrelevant data and correcting errors or inconsistencies in the data. This is particularly important in large datasets, where manual cleaning is time-consuming and error-prone. Automated preprocessing tools can help to quickly identify and remove errors, making the data more reliable for analysis.

Figure 1.1 portrays a comprehensive preprocessing pipeline. We will cover this code example in Chapter 4:

Figure 1.1 – Comprehensive preprocessing pipeline

Figure 1.1 – Comprehensive preprocessing pipeline

In conclusion, preprocessing text is a vital step in NLP and ML applications; it improves the performance of ML algorithms by removing noise and inconsistencies and standardizing the data. Additionally, it plays a crucial role in data preparation for NLP tasks and in data cleaning. By investing time and resources in preprocessing, one can ensure that the data is of high quality and is ready for advanced NLP and ML methods, resulting in more accurate and reliable results.

As our text data is prepared for further processing, the next step typically involves fitting an ML model to it.

A winning synergy – the coming together of NLP and ML

ML is a subfield of AI that involves training algorithms to learn from data, allowing them to make predictions or decisions without those being explicitly programmed. ML is driving advancements in so many different fields, such as computer vision, voice recognition, and, of course, NLP.

Diving a little more into the specific techniques of ML, a particular technique used in NLP is statistical language modeling, which involves training algorithms on large text corpora to predict the likelihood of a given sequence of words. This is used in a wide range of applications, such as speech recognition, machine translation, and text generation.

Another essential technique is DL, which is a subfield of ML that involves training artificial neural networks on large amounts of data. DL models, such as convolutional neural networks (CNNs) and recurrent neural networks (RNNs), have been shown to be adequate for NLP tasks such as language understanding, text summarization, and sentiment analysis.

Figure 1.2 portrays the relationship between AI, ML, DL, and NLP:

Figure 1.2 – The relationship between the different disciplines

Figure 1.2 – The relationship between the different disciplines

Introduction to math and statistics in NLP

The solid base for NLP and ML is the mathematical foundations from which the algorithms stem. In particular, the key foundations are linear algebra, statistics and probability, and optimization theory. Chapter 2 will survey the key topics you will need to understand these topics. Throughout the book, we will present proofs and justifications for the various methods and hypotheses.

One of the challenges in NLP is dealing with the vast amount of data that is generated in human language. This includes understanding the context, as well as the meaning of the words and relationships between them. To deal with this challenge, researchers have developed various techniques, such as embeddings and attention mechanisms, which represent the meaning of words in a numerical format and help identify the most critical parts of the text, respectively.

Another challenge in NLP is the need for labeled data, as manually annotating large text corpora is expensive and time-consuming. To address this problem, researchers have developed unsupervised and weakly supervised methods that can learn from unlabeled data, such as clustering, topic modeling, and self-supervised learning.

Overall, NLP is a rapidly evolving field that has the potential to transform the way we interact with computers and information. It is used in various applications, from chatbots and language translation to text summarization and sentiment analysis. The use of ML techniques, such as statistical language modeling and DL, has been crucial in developing these systems. Ongoing research addresses the remaining challenges, such as understanding context and dealing with the lack of labeled data.

One of the most significant advances in NLP has been the development of pre-trained language models, such as bidirectional encoder representations from transformers (BERTs) and generative pre-trained transformers (GPTs). These models have been trained on massive amounts of text data and can be fine-tuned for specific tasks, such as sentiment analysis or language translation.

Transformers, the technology behind the BERT and GPT models, revolutionized NLP by enabling machines to understand the context of words in sentences more effectively. Unlike previous methods that processed text linearly, transformers can handle words in parallel, capturing nuances in language through attention mechanisms. This allows them to discern the importance of each word relative to others, greatly enhancing the model’s ability to grasp complex language patterns and nuances and setting a new standard for accuracy and fluency in NLP applications. This has enhanced the creation of NLP applications and has led to improved performance on a wide range of NLP tasks.

Figure 1.3 details the functional design of the Transformer component.

Figure 1.3 – Transformer in model architecture

Figure 1.3 – Transformer in model architecture

Another important development in NLP has been the increase in the availability of large amounts of annotated text data, which has allowed for the training of more accurate models. Additionally, the development of unsupervised and semi-supervised learning techniques has allowed for the training of models on smaller amounts of labeled data, making it possible to apply NLP in a wider range of scenarios.

Language models have had a significant impact on the field of NLP. One of the key ways that language models have changed the field is by improving the accuracy and effectiveness of natural language processing tasks. For example, many language models have been trained on large amounts of text data, allowing them to better understand the nuances and complexities of human language. This has led to improved performance in tasks such as language translation, text summarization, and sentiment analysis.

Another way that language models have changed the field of NLP is by enabling the development of more advanced, sophisticated NLP systems. For example, some language models, such as GPT, can generate human-like text, which has opened up new possibilities for natural language generation and dialogue systems. Other language models, such as BERT, have improved the performance of tasks such as question answering, sentiment analysis, and named entity recognition.

Language models have also changed the field by making it more accessible to a broader range of people. With the advent of pre-trained language models, developers can now easily fine-tune these models to specific tasks without the need for large amounts of labeled data or the expertise to train models from scratch. This has made it easier for developers to build NLP applications and has led to an explosion of new NLP-based products and services.

Overall, language models have played a key role in advancing the field of NLP by improving the performance of existing NLP tasks, enabling the development of more advanced NLP systems, and making NLP more accessible to a broader range of people.

Understanding language models – ChatGPT example

ChatGPT, a variant of the GPT model, has become popular because of its ability to generate human-like text, which can be used for a broad range of natural language generation tasks, such as chatbot systems, text summarization, and dialogue systems.

The main reason for its popularity is its high-quality outputs and its ability to generate text that is hard to distinguish from text written by humans. This makes it well-suited for applications that require natural-sounding text, such as chatbot systems, virtual assistants, and text summarization.

Additionally, ChatGPT is pre-trained on a large amount of text data, allowing it to understand human language nuances and complexities. This makes it well-suited for applications that require a deep understanding of language, such as question answering and sentiment analysis.

Moreover, ChatGPT can be fine-tuned for specific use cases by providing it with a small amount of task-specific data, which makes it versatile and adaptable to a wide range of applications. It is widely used in industry, research, and personal projects, ranging from customer service chatbots, virtual assistants, automated content creation, text summarization, dialogue systems, question answering, and sentiment analysis.

Overall, ChatGPT’s ability to generate high-quality, human-like text and its ability to be fine-tuned for specific tasks makes it a popular choice for a wide range of natural language generation applications.

Let’s move on to summarize the chapter now.

Summary

In this chapter, we introduced you to the field of NLP, which is a subfield of AI. The chapter highlights the importance of mathematical foundations, such as linear algebra, statistics and probability, and optimization theory, which are necessary to understand the algorithms used in NLP. It also covers the challenges faced in NLP, such as understanding the context and meaning of words, the relationships between them, and the need for labeled data. We discussed the recent advancements in NLP, including pre-trained language models, such as BERT and GPT, and the availability of large amounts of text data, which has led to improved performance in NLP tasks. We touched on the importance of text preprocessing as you gains knowledge of the importance of data cleaning, data normalization, stemming, and lemmatization in text preprocessing. We then talked about how the coming together of NLP and ML is driving advancements in the field and is becoming an increasingly important tool for automating tasks and improving human-computer interaction.

After learning from this chapter, you will be able to understand the importance of NLP, ML, and DL techniques. you will be able to understand the recent advancements in NLP, including pre-trained language models. you will also have gained knowledge of the importance of text preprocessing and how it plays a crucial role in data preparation for NLP tasks and in data cleaning.

In the next chapter, we will cover the mathematical foundations of ML. These foundations will serve us throughout the book.

Questions and answers

  1. What is natural language processing (NLP)?
    • Q: What defines NLP in the field of artificial intelligence?
    • A: NLP is a subfield of AI focused on enabling computers to understand, interpret, and generate human language in a way that is both natural and meaningful to human users.
  2. Initial strategies in machine processing of natural language.
    • Q: What is the importance of preprocessing in NLP?
    • A: Preprocessing, including tasks such as removing stop words and applying stemming or lemmatization, is crucial for cleaning and preparing text data, thereby improving the performance of machine learning algorithms on NLP tasks.
  3. The synergy of NLP and machine learning (ML).
    • Q: How does machine learning contribute to advancements in NLP?
    • A: ML, especially techniques such as statistical language modeling and deep learning, drives NLP forward by enabling algorithms to learn from data, predict word sequences, and perform tasks such as language understanding and sentiment analysis more effectively.
  4. Introduction to math and statistics in NLP
    • Q: Why are mathematical foundations important in NLP?
    • A: Mathematical foundations such as linear algebra, statistics, and probability are essential for understanding and developing the algorithms that underpin NLP techniques, from basic preprocessing to complex model training.
  5. Advancements in NLP – the role of pre-trained language models
    • Q: How have pre-trained models such as BERT and GPT influenced NLP?
    • A: Pre-trained models, trained on vast amounts of text data, can be fine-tuned for specific tasks such as sentiment analysis or language translation, significantly simplifying the development of NLP applications and enhancing task performance.
  6. Understanding transformers in language models
    • Q: Why are transformers considered a breakthrough in NLP?
    • A: Transformers process words in parallel and use attention mechanisms to understand word context within sentences, significantly improving a model’s ability to handle the complexities of human language.
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Key benefits

  • Learn how to build Python-driven solutions with a focus on NLP, LLMs, RAGs, and GPT
  • Master embedding techniques and machine learning principles for real-world applications
  • Understand the mathematical foundations of NLP and deep learning designs
  • Purchase of the print or Kindle book includes a free PDF eBook

Description

Do you want to master Natural Language Processing (NLP) but don’t know where to begin? This book will give you the right head start. Written by leaders in machine learning and NLP, Mastering NLP from Foundations to LLMs provides an in-depth introduction to techniques. Starting with the mathematical foundations of machine learning (ML), you’ll gradually progress to advanced NLP applications such as large language models (LLMs) and AI applications. You’ll get to grips with linear algebra, optimization, probability, and statistics, which are essential for understanding and implementing machine learning and NLP algorithms. You’ll also explore general machine learning techniques and find out how they relate to NLP. Next, you’ll learn how to preprocess text data, explore methods for cleaning and preparing text for analysis, and understand how to do text classification. You’ll get all of this and more along with complete Python code samples. By the end of the book, the advanced topics of LLMs’ theory, design, and applications will be discussed along with the future trends in NLP, which will feature expert opinions. You’ll also get to strengthen your practical skills by working on sample real-world NLP business problems and solutions.

Who is this book for?

This book is for deep learning and machine learning researchers, NLP practitioners, ML/NLP educators, and STEM students. Professionals working with text data as part of their projects will also find plenty of useful information in this book. Beginner-level familiarity with machine learning and a basic working knowledge of Python will help you get the best out of this book.

What you will learn

  • Master the mathematical foundations of machine learning and NLP Implement advanced techniques for preprocessing text data and analysis Design ML-NLP systems in Python
  • Model and classify text using traditional machine learning and deep learning methods
  • Understand the theory and design of LLMs and their implementation for various applications in AI
  • Explore NLP insights, trends, and expert opinions on its future direction and potential

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Table of Contents

13 Chapters
Chapter 1: Navigating the NLP Landscape: A Comprehensive Introduction Chevron down icon Chevron up icon
Chapter 2: Mastering Linear Algebra, Probability, and Statistics for Machine Learning and NLP Chevron down icon Chevron up icon
Chapter 3: Unleashing Machine Learning Potentials in Natural Language Processing Chevron down icon Chevron up icon
Chapter 4: Streamlining Text Preprocessing Techniques for Optimal NLP Performance Chevron down icon Chevron up icon
Chapter 5: Empowering Text Classification: Leveraging Traditional Machine Learning Techniques Chevron down icon Chevron up icon
Chapter 6: Text Classification Reimagined: Delving Deep into Deep Learning Language Models Chevron down icon Chevron up icon
Chapter 7: Demystifying Large Language Models: Theory, Design, and Langchain Implementation Chevron down icon Chevron up icon
Chapter 8: Accessing the Power of Large Language Models: Advanced Setup and Integration with RAG Chevron down icon Chevron up icon
Chapter 9: Exploring the Frontiers: Advanced Applications and Innovations Driven by LLMs Chevron down icon Chevron up icon
Chapter 10: Riding the Wave: Analyzing Past, Present, and Future Trends Shaped by LLMs and AI Chevron down icon Chevron up icon
Chapter 11: Exclusive Industry Insights: Perspectives and Predictions from World Class Experts Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

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Fon Marile May 23, 2024
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Mastering NLP is an invaluable resource for anyone in the NLP field. It provides a thorough grounding in essential math and programming, along with advanced techniques for text classification and LLM system design. With practical python examples and expert insights, its a must-read for NLP mastery and when seeking a reliable guide when tackling real world problems.
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Petar Dimov Jun 21, 2024
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🎉 This comprehensive guide has proved itself to be an invaluable resource!💡 The book captivated me from the first chapter itself. It brilliantly paves the way for everyone from budding learners to industry veterans in the space of NLP and LLMs, and its concise yet comprehensive coverage aligns perfectly with the needs of a wide array of readers.🧠 Gazit and Ghaffari have meticulously crafted this book as a powerful compendium of knowledge. They have intelligently structured the content to segue from fundamental understanding of topics like linear algebra, probability, and statistics to more advanced ML techniques, making it an essential manual of NLP-related learnings.✏️ What sets this book apart is not merely the actionable insight it provides, but how it beautifully combines these insights with real-life applications. The transition from text pre-processing techniques to deep learning models, discussed from Chapter 4 through 6, is skillfully supplemented with Python-based case studies, creating a truly immersive learning experience.🛠 For those fascinated by Large Language Models (LLMs), Chapters 7 to 9 delve into everything from theory and design to sophisticated applications like prompt engineering and RAGs, all of which are brought to life through practical code implementations.🧩 The final chapters (10 and 11) critically analyse the current trends influenced by AI and LLMs, while also making well-researched predictions about the future of this industry, preparing readers to stay ahead of the curve.✨ In summary, "Mastering NLP from Foundations to LLMs" is more than just a book; it is a well-rounded guide for anyone keen to tap into the potential of NLP and LLMs. This guide offers an impressive mix of foundational theories, actionable insights, and future forecasts, all while ensuring reader-friendly delivery. Whether you're a beginner or a professional, this book is a brilliant tool to navigate the complex yet exciting world of AI and LLMs.
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Andrew May 26, 2024
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As a business leader this is a good source for me to refer to. It simplifies complex NLP concepts and also provides practical Python examples to just run and play with.This book empowers leaders by letting better understand what actually happens which feeds into strategic decision-making and driving innovation.Ideally, this would help be competitive in an AI-driven market.
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yifat May 29, 2024
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This NLP book is a powerful resource for job candidates. It directly prepares you for Machine Learning Engineer interviews by covering essential system design concepts, advanced NLP techniques, and practical Python examples.You get the insight you need, so it's worth keeping at your desk.
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Sarbjit Singh Hanjra Oct 18, 2024
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"Mastering NLP from Foundations to LLMs", serves as that crucial guide, helping readers chart their course through the expansive field of Natural Language Processing (NLP).From the basics of NLP and machine learning to advanced topics like neural networks, transformers, and LLMs, this book lays out the landscape clearly. It begins by grounding readers in essential mathematical concepts, including linear algebra and probability, before guiding them through data exploration and machine learning models. The book’s strength lies in its structured approach, making even the most complex topics—like text preprocessing, hyperparameter tuning, and ensemble models—easy to digest.The sections dedicated to LLMs are like detailed flight maps for advanced NLP techniques. From designing and integrating LLMs with LangChain and RAG to practical applications using Hugging Face, the book ensures you're well-equipped to navigate these models effectively. Highly recommended for those looking to master NLP, this guide is the perfect roadmap to understanding and leveraging the power of LLMs.
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