id: 05630971 dt: j an: 05630971 au: Wu, Yan; Wang, Yuping; Liu, Xiaoxiong ti: An improved Bayesian optimization algorithm incorporated local structure learning. so: Syst. Eng. Electron. 30, No. 12, 2493-2496 (2008). py: 2008 pu: Editorial Department of Systems Engineering and Electronics, Beijing la: ZH cc: ut: Bayesian optimization algorithm; Bayesian network; greedy algorithm ci: li: ab: Summary: Learning Bayesian networks is a key for a successful application of Bayesian optimization algorithm. However, it is NP-hard to learn Bayesian networks. In order to get reliable Bayesian networks quickly, a novel learning strategy is presented in this paper. Firstly, the stochastic greedy algorithm for local structure is introduced according to the decomposable of scoring metric. The optimal edge is selected by using scoring metric and local search. Secondly, the reliability of Bayesian networks which is learned by the proposed algorithm is improved. Due to the reliable network, BOA overcomes deceptive and performs efficiently. Experimental results show that the improved algorithm’s performance is better than that of traditional BOA. rv: