An improved particle swarm optimization（PSO） algorithm is proposed to train the fuzzy support vector machine（FSVM） for pattern multi-classification.In the improved algorithm,the particles studies not only from its...An improved particle swarm optimization（PSO） algorithm is proposed to train the fuzzy support vector machine（FSVM） for pattern multi-classification.In the improved algorithm,the particles studies not only from itself and the best one but also from the mean value of some other particles.In addition,adaptive mutation was introduced to reduce the rate of premature convergence.The experimental results on the synthetic aperture radar（SAR） target recognition of moving and stationary target acquisition and recognition（MSTAR） dataset and character recognition of MNIST database show that the improved algorithm is feasible and effective for fuzzy multi-class SVM training.展开更多
Combining the clonal selection mechanism of the immune system with the evolution equations of particle swarm optimization, an advanced algorithm was introduced for functions optimization. The advantages of this algori...Combining the clonal selection mechanism of the immune system with the evolution equations of particle swarm optimization, an advanced algorithm was introduced for functions optimization. The advantages of this algorithm lies in two aspects. Via immunity operation, the diversity of the antibodies was maintained, and the speed of convergent was improved by using particle swarm evolution equations. Simulation programme and three functions were used to check the effect of the algorithm. The advanced algorithm were compared with clonal selection algorithm and particle swarm algorithm. The results show that this advanced algorithm can converge to the global optimum at a great rate in a given range, the performance of optimization is improved effectively.展开更多
针对蝴蝶优化算法(butterfly optimization algorithm,BOA)易陷入局部最优,且收敛速度慢和寻优精度低等问题,提出了一种趋优变异反向学习的樽海鞘群与蝴蝶混合优化算法(hybrid optimization algorithm for salp swarm and butterfly wit...针对蝴蝶优化算法(butterfly optimization algorithm,BOA)易陷入局部最优,且收敛速度慢和寻优精度低等问题,提出了一种趋优变异反向学习的樽海鞘群与蝴蝶混合优化算法(hybrid optimization algorithm for salp swarm and butterfly with reverse mutation towards optimization learning,OMSSBOA)。引入柯西变异对最优蝴蝶个体进行扰动,避免算法陷入局部最优;将改进的樽海鞘群优化算法(salp swarm algorithm,SSA)嵌入到BOA,平衡算法全局勘探和局部开采的比重,进而提高算法收敛速度;利用趋优变异反向学习策略扩大算法搜索范围并提升解的质量,进而提高算法的寻优精度。将改进算法在10种基准测试函数上进行仿真实验,结果表明,改进算法具有较好的寻优性能和鲁棒性。展开更多
分布式低碳能源站(distributed low-carbon energy station,DLCES)能提高能源利用效率和可再生能源消纳率,准确预测DLCES的未来运行状态能保障其安全可靠运行。为此,提出一种基于数据驱动的分布式低碳能源站状态预测方法。首先,分析DLCE...分布式低碳能源站(distributed low-carbon energy station,DLCES)能提高能源利用效率和可再生能源消纳率,准确预测DLCES的未来运行状态能保障其安全可靠运行。为此,提出一种基于数据驱动的分布式低碳能源站状态预测方法。首先,分析DLCES结构与运行状态,利用关键状态量和偏移量变化将运行状态划分为正常、恢复、临界及紧急状态;其次,构建深度长短期记忆(long-short term memory,LSTM)模型,并利用改进粒子群算法进行超参数优化,提升预测模型性能;最后,利用测试集数据对柯西变异的粒子群算法(Cauchy mutation particle swarm optimization,CMPSO)和LSTM相结合的模型进行预测仿真,将其与RNN、LSTM及BP神经网络预测结果对比分析。结果表明:CMPSO-LSTM模型能提高预测效果,更具实际意义。展开更多
基金Supported by National-Natural Science Found for Distinguished Young Scholars of China （61025015）, the Foundation for Innovative Research Groups of National Natural Science Foundation of China （61321003） and the China Scholarship Council
基金supported by the National Natural Science Foundation of China (60873086)the Aeronautical Science Foundation of China(20085153013)the Fundamental Research Found of Northwestern Polytechnical Unirersity (JC200942)
文摘An improved particle swarm optimization（PSO） algorithm is proposed to train the fuzzy support vector machine（FSVM） for pattern multi-classification.In the improved algorithm,the particles studies not only from itself and the best one but also from the mean value of some other particles.In addition,adaptive mutation was introduced to reduce the rate of premature convergence.The experimental results on the synthetic aperture radar（SAR） target recognition of moving and stationary target acquisition and recognition（MSTAR） dataset and character recognition of MNIST database show that the improved algorithm is feasible and effective for fuzzy multi-class SVM training.
基金Project(A1420060159) supported by the National Basic Research of China projects(60234030, 60404021) supported by the National Natural Science Foundation of China
文摘Combining the clonal selection mechanism of the immune system with the evolution equations of particle swarm optimization, an advanced algorithm was introduced for functions optimization. The advantages of this algorithm lies in two aspects. Via immunity operation, the diversity of the antibodies was maintained, and the speed of convergent was improved by using particle swarm evolution equations. Simulation programme and three functions were used to check the effect of the algorithm. The advanced algorithm were compared with clonal selection algorithm and particle swarm algorithm. The results show that this advanced algorithm can converge to the global optimum at a great rate in a given range, the performance of optimization is improved effectively.
基金山东省自然科学基金(the Natural Science Foundation of Shandong Province of China under Grant No.Z2004G02)山东省教育厅资助科研课题(the research Project of Department of Education of Shandong Province+1 种基金China under Grant No.J05G01)"泰山学者"建设工程专项经费资助
文摘针对蝴蝶优化算法(butterfly optimization algorithm,BOA)易陷入局部最优,且收敛速度慢和寻优精度低等问题,提出了一种趋优变异反向学习的樽海鞘群与蝴蝶混合优化算法(hybrid optimization algorithm for salp swarm and butterfly with reverse mutation towards optimization learning,OMSSBOA)。引入柯西变异对最优蝴蝶个体进行扰动,避免算法陷入局部最优;将改进的樽海鞘群优化算法(salp swarm algorithm,SSA)嵌入到BOA,平衡算法全局勘探和局部开采的比重,进而提高算法收敛速度;利用趋优变异反向学习策略扩大算法搜索范围并提升解的质量,进而提高算法的寻优精度。将改进算法在10种基准测试函数上进行仿真实验,结果表明,改进算法具有较好的寻优性能和鲁棒性。
文摘分布式低碳能源站(distributed low-carbon energy station,DLCES)能提高能源利用效率和可再生能源消纳率,准确预测DLCES的未来运行状态能保障其安全可靠运行。为此,提出一种基于数据驱动的分布式低碳能源站状态预测方法。首先,分析DLCES结构与运行状态,利用关键状态量和偏移量变化将运行状态划分为正常、恢复、临界及紧急状态;其次,构建深度长短期记忆(long-short term memory,LSTM)模型,并利用改进粒子群算法进行超参数优化,提升预测模型性能;最后,利用测试集数据对柯西变异的粒子群算法(Cauchy mutation particle swarm optimization,CMPSO)和LSTM相结合的模型进行预测仿真,将其与RNN、LSTM及BP神经网络预测结果对比分析。结果表明:CMPSO-LSTM模型能提高预测效果,更具实际意义。
