This book describes the development of an intrusion detection system for online poker, which uses player's game strategy as the behavioral profile. The system is improved by modifications to the similarity measure functions and different ways of representing behavioral signatures. The system is further enhanced by inclusion of spatial, temporal and contextual information about the environment alongside the user's behavior. Possibility of creation of artificial behavioral profiles and use of such profiles for spoofing of behavior-based security systems is investigated and promising results are achieved. In a somewhat related research, recognizing importance of games in our experiments, it is proven that poker is a game of skill. Finally, a number of games are analyzed in terms of their spatial ontologies.

Since the 1950's character recognition has been an active field of research for computer scientists worldwide. The main reason is that character recognition is not only an interesting area of theoretical research with relevance to many pattern recognition sub-fields, but also a very needed and useful real life application. Making computers able to read would allow for substantial savings in terms of the costs for data entry, mail processing, form processing and many other similar situations. Every realistic character recognition system requires a feature extraction step in order to properly operate. This book is a large-scale review of the feature extraction approaches for character recognition based on literature review and experimental results. An original classification system is described, which groups feature extraction methods depending on their theoretical approach. The developed classification system aids in comparison and analysis of the feature extraction methods.

This volume contains a selection of authoritative essays exploring the central questions raised by the conjectured technological singularity. In informed yet jargon-free contributions written by active research scientists, philosophers and sociologists, it goes beyond philosophical discussion to provide a detailed account of the risks that the singularity poses to human society and, perhaps most usefully, the possible actions that society and technologists can take to manage the journey to any singularity in a way that ensures a positive rather than a negative impact on society. The discussions provide perspectives that cover technological, political and business issues. The aim is to bring clarity and rigor to the debate in a way that will inform and stimulate both experts and interested general readers.

This book constitutes the refereed proceedings of the 13th International Conference on Artificial General Intelligence, AGI 2020, held in St. Petersburg, Russia, in September 2020.The 30 full papers and 8 short papers presented in this book were carefully reviewed and selected from 60 submissions. The papers cover topics such as AGI architectures, artificial creativity and AI safety, transfer learning, AI unification and benchmarks for AGI.

This volume contains a selection of authoritative essays exploring the central questions raised by the conjectured technological singularity. In informed yet jargon-free contributions written by active research scientists, philosophers and sociologists, it goes beyond philosophical discussion to provide a detailed account of the risks that the singularity poses to human society and, perhaps most usefully, the possible actions that society and technologists can take to manage the journey to any singularity in a way that ensures a positive rather than a negative impact on society. The discussions provide perspectives that cover technological, political and business issues. The aim is to bring clarity and rigor to the debate in a way that will inform and stimulate both experts and interested general readers.

Welcome to the obsession known as Sudoku. This book will provide you with hours of fun as it contains 576 never before published computer generated Sudoku puzzles. Puzzles range in difficulty from easy to medium, hard and very hard. You get a nice equal mix of all types grouped by difficulty or if you are feeling adventurous randomized for your pleasure. Each puzzle comes with a difficulty rating (on a 100 point scale) established by a sophisticated computer algorithm and a complete solution just in case you get stuck.

This book is a review of published research in computer security, user authentication, intrusion detection, game security and behavioral biometrics. We analyze previous studies and point out trends and propose taxonomies which make understanding and improvement on previous work easier. In particular the majority of contributions in this book is to the field of behavioral biometrics. Research in biometric technologies offers one of the most promising approaches to providing user friendly and reliable control methodology for access to computer systems, networks and workplaces. Majority of such research is aimed at studying well established physical biometrics such as fingerprint or iris recognition. Behavioral biometrics are usually only briefly mentioned and only those which are in large part based on muscle control such as keystrokes, gait or signature are well investigated. This book was written to fill the coverage gap with respect to this promising technology.