基于定性仿真方法的脑电波诊断模型研究

Based on the achievement of preceding funded research subject "The Simulation Method Integrate Qualitative Simulation with Quantitative Simulation", a new high-efficient algorithm of parallel qualitative simulation was put forward for medical diagnosis by electroencephalogram (EEG). A qualitative simulation model of brain waves put out by epileptics was constructed based upon the structure of double cells colony. In accordance with its characteristic of subsection, a simulation method PQSIM----integrated qualitative simulation with quantitative simulation was presented. The researchers did experiments by simulating brain waves put out by over thirty cases of partial epileptics, the results showed that the change tendencies of simulated electroencephalograms were consistent with real brain waves by and large. An improved qualitative simulation method Q2 was presented in order to solve problem of fixed time lag. A qualitative processing method was successfully proposed to deal with the experimental data flow of complex systems that were difficult to construct structural models. Furthermore, the researchers did dynamical calculations to EEGs that were the productions of human brains---a kind of nonlinear complex systems. Results of contrastive analysis between forty sots and normal persons showed that there were distinct differences between the both lies in two important indexes: stability and complexity. It also showed that different spirit activities caused different states of human brains. These research results lay a solid foundation for in-depth research in qualitative modeling and simulation of complex systems. Some of the aforementioned methods have had application in the fields of preventing and decreasing calamity and hydrology forecast and decision-making.，network safety and enterprise resource planning (ERP)

定性仿真是处理知识不完备系统问题的有效方法。本课题组在定性仿真领域，特别是定量与定性相集成的仿真方法研究取得的成果的基础上，针对人脑非线性、混沌的特点，从脑电波（EEG）分析入手，以期得到一个比传统方法更准确的脑电疾病诊断模型。该研究在医疗诊戏矫婢哂泄憷挠τ们熬埃谕贫ㄐ岳砺鄣难芯考坝τ梅矫嬉灿兄匾庖濉?.