GAI Wei-lin, XIN Dan, WANG Lu, LIU Xin, HU Jian-bin
In the research of cyberspace situation awareness, how to deal with uncertain, inaccurate multi-source heterogeneous information is an important problem which needs to be solved in the process of situational understanding. In order to accurately handle with the information, improve the awareness of the situation, make the situation more accuracy, timeliness and overall, the paper reviews the existing technology focus, mainly including data fusion methods and decision-making methods. Data fusion methods mainly includes Bayesian network, D-S evidence theory, rough set theory, neural network, hidden Markov model and Markov game theory methods, and decision-making mainly includes cognitive psychology, logic and risk management methods. Research results show that current technology focuses present diversity, but still has great space for improvement in both the situation generation application and verification.