\input zb-basic \input zb-ioport \iteman{io-port 05974372} \itemau{Wang, Lei} \itemti{Recognition and reply of adversarial planning based on simulation state graph.} \itemso{Lin, Song (ed.) et al., Advances in computer science, environment, ecoinformatics, and education. International conference, CSEE 2011, Wuhan, China, August 21--22, 2011. Proceedings, Part IV. Berlin: Springer (ISBN 978-3-642-23338-8/pbk; 978-3-642-23339-5/ebook). Communications in Computer and Information Science 217, 77-81 (2011).} \itemab Summary: The purpose of this paper is, through analyzing the specific attack problems of intrusion and adopting the method, to introduce simulation state graph and crisis level etc. And in an invasive process of an invasive event, this paper constructs a plan recognition model by adopting the simulation state graph. Moreover, according to calculating for every critical degree of every presumable multi-target state, it can realize the valid recognition to the final target state that the attacker will achieve, which is affected by the invasive action of the attacker under the initial state at the current time-step. So as to realize the adversarial planning effective recognition. Therefore, it can realize the response process to the invasive action of the attacker. \itemrv{~} \itemcc{} \itemut{adversarial planning; simulation state graph; crisis level} \itemli{doi:10.1007/978-3-642-23339-5\_14} \end