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决策粒K均值聚类算法 被引量:1
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作者 余豪东 陈玉明 +1 位作者 吴克寿 韩锋钢 《闽南师范大学学报(自然科学版)》 2023年第3期1-13,共13页
针对传统K均值聚类效果不稳定,陷入局部最优解和簇边缘样本聚类不准确的问题,提出一种基于决策粒的K均值聚类算法.该算法利用卡方检验、卡方权值参数进行特征选择,再与样本密度和间隔差异结合,选取出优秀初始质心;然后,根据粒向量距离... 针对传统K均值聚类效果不稳定,陷入局部最优解和簇边缘样本聚类不准确的问题,提出一种基于决策粒的K均值聚类算法.该算法利用卡方检验、卡方权值参数进行特征选择,再与样本密度和间隔差异结合,选取出优秀初始质心;然后,根据粒向量距离度量方法得到基础粒K均值聚类结果,构造决策粒模型,对决策粒向量进行聚类决策划分.最后,结合多个UCI数据集实验,将该算法与多种经典聚类算法在聚类结果、性能评估、迭代次数等方面进行比较.结果表明,提出的决策粒K均值聚类算法具有选择优秀初始质心和提高聚类性能的优点. 展开更多
关键词 K均值聚类 决策粒 计算 初始质心 向量距离
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HEURISTIC PARTICLE SWARM OPTIMIZATION ALGORITHM FOR AIR COMBAT DECISION-MAKING ON CMTA 被引量:18
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作者 罗德林 杨忠 +2 位作者 段海滨 吴在桂 沈春林 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2006年第1期20-26,共7页
Combining the heuristic algorithm (HA) developed based on the specific knowledge of the cooperative multiple target attack (CMTA) tactics and the particle swarm optimization (PSO), a heuristic particle swarm opt... Combining the heuristic algorithm (HA) developed based on the specific knowledge of the cooperative multiple target attack (CMTA) tactics and the particle swarm optimization (PSO), a heuristic particle swarm optimization (HPSO) algorithm is proposed to solve the decision-making (DM) problem. HA facilitates to search the local optimum in the neighborhood of a solution, while the PSO algorithm tends to explore the search space for possible solutions. Combining the advantages of HA and PSO, HPSO algorithms can find out the global optimum quickly and efficiently. It obtains the DM solution by seeking for the optimal assignment of missiles of friendly fighter aircrafts (FAs) to hostile FAs. Simulation results show that the proposed algorithm is superior to the general PSO algorithm and two GA based algorithms in searching for the best solution to the DM problem. 展开更多
关键词 air combat decision-making cooperative multiple target attack particle swarm optimization heuristic algorithm
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