針對高速公路交通這個復(fù)雜的非線性系統(tǒng)，提出一種基于對向傳播網(wǎng)絡(luò)的交通事件檢
測算法。闡述了對向傳播網(wǎng)絡(luò)的結(jié)構(gòu)和學(xué)習(xí)算法，給出了事件檢測的依據(jù)，并合理地選擇了網(wǎng)絡(luò)的輸入?yún)?shù)，用高速公路管理部門提供的樣本數(shù)據(jù)進(jìn)行了仿真研究。仿真結(jié)果表明，該事件檢測算法具有學(xué)習(xí)速度快、泛化能力好、檢測準(zhǔn)確率高、平均檢測時間短等優(yōu)點，具有良好的應(yīng)用前景。
關(guān)鍵詞：高速公路；事件檢測；對向傳播網(wǎng)絡(luò)；算法
Abstract: Aiming at the complex and nonlinear system of freeway traffic, an incident detection
algorithm based on counter propagation network (CPN) is proposed. The structure and learning algorithm of CPN are formulated. Then the basis of incident detection is given, and the CPN input variables are selected reasonably. Simulation research is carried out with the sample data provided by the freeway administrative office. Simulation results show that this incident detection algorithm has such advantages as fast learning speed, good generalization ability, high detection rate and short mean detection time. It is found to be potentially applicable in practice.
Key words: freeway; incident detection; counter propagation network; algorithm