John Atkinson-Abutridy, received a PhD in Artificial Intelligence from the University of Edinburgh in Scotland, and currently is a full professor at the Faculty of Engineering and Sciences at Universidad Adolfo Ibáñez in Santiago, Chile. Over the years, he has also held full-time academic positions at various Chilean universities and abroad as a visiting professor and researcher at university and research centers in Europe (France, UK), Unites States (MIT, IBM T.J. Watson) and various Latin American universities. Dr. Atkinson-Abutridy's primary research interests span into Natural Language Processing, textual analytics, artificial intelligence, and bio-inspired computing. His academic career includes the publication of nearly one hundred scientific papers and the authorship of two books. Recently, he has been at the forefront of numerous scientific and technological projects at national and international level, serving as an AI consultant for many companies and founding AI-Empowered. In recognition of his substantial contributions to the field of computer science, Dr. Atkinson-Abutridy received the Senior Member Award by the Association for Computing Machinery (ACM) in the United States in 2010. Among his notable accomplishments, he pioneered the first worldwide web-based natural language dialogue model in 2005, a precursor to today's ChatGPT system. In 2023, he released the second edition of his book, "Text Analytics: An Introduction to the Science and Applications of Unstructured Information Analysis" (Taylor & Francis, USA), which was recognized as the top choice in the text mining category by the Book Authority organization.

Preface. Chapter 1- Introduction. Chapter 2- Fundamentals. Chapter 3- Large Language Models. Chapter 4- Model Evaluation. Chapter 5- Applications. Chapter 6- Issues and Perspectives. Bibliography.