Mapping Polygons

This thesis focuses on the exploration of polygonal environments with simple agents. The goal is to understand what minimal capabilities such agents need in order to draw a map of their environment. Starting from a very basic agent model, we investigate what extra capabilities agents need in order to reconstruct the visibility graph of their environment. Some combinations of capabilities are shown to be insufficient, while others are shown to be sufficient. For the latter, we present reconstruction algorithms and algorithms for meeting with other agents.

This engaging text provides a solid introduction to mapmaking in the era of cloud computing. It takes students through both the concepts and technology of modern cartography, geographic information systems (GIS), and Web-based mapping. Conceptual chapters delve into the meaning of maps and how they are developed, covering such topics as map layers, GIS tools, mobile mapping, and map animation. Methods chapters take a learn-by-doing approach to help students master application programming interfaces and build other technical skills for creating maps and making them available on the Internet. The companion website offers invaluable supplementary materials for instructors and students.˜ ˜ Pedagogical features:˜ End-of-chapter summaries, review questions, and exercises.˜ Extensive graphics illustrating the concepts and procedures. Downloadable PowerPoints for each chapter. Downloadable code files (where applicable) for the exercises.

Crime analysis is an emerging profession in policing and a growing topic of interest in the criminal justice field. This book offers a thorough introduction to the field as well as guidelines for its practice, making it a useful asset for current and future crime analysts and police practitioners as well as for students.

One of the key methods of reducing and dealing with criminal activity is to accurately gauge and then analyse the geographical distribution of crime (from small scale to large scale areas). Once the police and government know what areas suffer most from criminal activity they can assess why this is the case and then deal with it in the most effecti

Scientific notes and summaries of investigations in geology, hydrology, and related fields.