Computational intelligence is a set of methodologies designed to solve complex problems that cannot be solved using classical methods of mathematics or modeling. It operates using the techniques of fuzzy logic, artificial neural networks, evolutionary computing, learning theory and probabilistic methods. Computational intelligence provides solutions for real-world problems that cannot be put into binary code. Some popular approaches of this domain are artificial immune systems and swarm intelligence. The field of computational intelligence has applications in engineering, computer science, data analysis and biomedicine. The objective of this book is to give a general view of the different areas of computational intelligence and their applications. It aims to present researches that have transformed this discipline and aided its advancement. Students, researchers, experts and all associated with this field will benefit alike from this book.