The Selous Game Reserve in southern Tanzania is Africa's oldest and largest protected area. Proclaimed in 1896 and bigger than Switzerland, the Selous is a UNESCO World Heritage Site. The Selous remains one of Africa's largest and greatest undisturbed ecosystems, teeming with life including one of the two largest elephant populations remaining on the African continent, probably half of all of the wild dogs in Africa, vast herds of buffalo as well as more lions than any other protected area on the continent as reported by National Geographic in August 2013. The game reserve is becoming more important by the day as the pressure on elephants and other species grows - problems that are addressed here in this book. New York-born photographer Rob Ross has spent much of the past four years photographing in this vast and difficult to access reserve. He has compiled more than 100,000 images showing all aspects of the reserves varied landscapes, seasons, flora and large and small fauna.The spectacular large-format photography book features a selection of the very best images including landscapes, wildlife portraits and behaviour, night photography, impressionist style work and breath-taking aerials.

The photographers of the New York City Police Department are engaged in taking photos at the many demonstrations against the Vietnam War. They encounter a group named the Weathermen. This group is determined to end the war by acts of violence. The photo unit has taken pictures of their work, which consists of explosions at colleges and federal buildings. The weathermen decide to get the police department involved in their bombings. Can they be stopped? It will be decided by a member of the photo unit.

For 50 years the natural language interface has tempted and challenged researchers and the public in equal measure. As advanced domains such as robotic systems mature over the next ten years, the need for effective language interfaces will become more significant as the disparity between physical and language ability becomes more evident. Natural language conversation with robots and other situated systems will not only require a clear understanding of theories of language use, models of spatial representation and reasoning, and theories of intentional action and agency - but will also require that all of these models be made accessible within tractable dialogue processing frameworks. While such issues pose research questions which are significant, particularly when we consider them in the light of the many other challenges in language processing and spatial theory, the benefits of competence in situated dialogue to the fields of robotics, geographic information systems, game design, and applied artificial intelligence cannot be underestimated. This book examines the burgeoning field of Situated Dialogue Systems and describes for the first time a complete computational model of situated dialogue competence for practical dialogue systems. The book can be broadly broken down into two parts. The first three chapters examine on one hand the issues which complicate the computational modelling of situated dialogue, i.e., issues of agency and spatial language competence, and on the other hand examines theories of dialogue modelling and management with respect to the needs of the situated domain. The second part of the book then details a situated dialogue processing architecture. Novel features of this architecture include the modular integration of an intentionality model alongside an exchange-structure based organization of discourse, plus the use of a functional contextualization process that operates over both implicit and explicit content in user contributions. The architecture is described at a course level, but in sufficient detail for others to use as a starting point in their own explorations of situated language intelligence.