SRI International Starting in 1966, Nilsson, along with
Charles A. Rosen and
Bertram Raphael, led a research team in the construction of
Shakey, a robot that constructed a model of its environment from sensor data, reasoned about that environment to arrive at a plan of action, then carried that plan out by sending commands to its motors.
Essentials of Artificial Intelligence, and the first edition of
Artificial Intelligence: A Modern Approach show this influence in almost every chapter. Nilsson's group was the first to embody it in a complete agent, along the way inventing the
A* search algorithm and founding the field of
automated temporal planning. whose action representation is still the basis of many of today's planning algorithms. The subfield of automated temporal planning called
classical planning is based on most of the assumptions built into STRIPS. until his retirement, and remained Kumagai Professor Emeritus until his death. He was the fourth President of the
AAAI (1982–83) and a Founding Fellow of that organization. Nilsson wrote or coauthored several books on AI, including two that have been especially widely read—
Principles of Artificial Intelligence (1982) and
Logical Foundations of Artificial Intelligence (1987). == Awards and memberships ==