This book explores the object and situation fusion processes with the proper handling of uncertainty, and apply artificial intelligence and advanced technologies such as particle filtering, spatiotemporal clustering, net-centricity, agent formalism, and distributed fusion together with essential techniques Level 1 and Level 1 / 2 interaction. complete discussion of this book Level 1 / 2 particle filtering technique emphasizes interaction as a unifier for the two filtering methods under the Level 1 fusion and search in the model for the Level 2 fusion. The book also describes various temporal modeling techniques including dynamic Bayesian networks and hidden Markov models, fusion is distributed to appear warfare network centric environment, and adaptation of the fusion process through machine learning techniques.