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基于差分演化的复杂网络社区挖掘算法研究柴丹炜,张若昕,刘建生江西理工大学理学院摘 要:社区结构的挖掘问题已经成为复杂网络中重要的研究方向,其挖掘算法是关键的核心问题.为了提高对社区结构进行挖掘的准确度,提出一种基于差分演化思想的复杂网络社区挖掘算法(Differential Evolution Community Detection Algorithm,DECD).DECD算法设计了一种新的编码方式,以模块密度函数作为优化目标,通过差分演化算法对复杂网络实施有效划分.实验结果表明,新的编码方式提高了编码速度并解决了社区重复编码问题,同时DECD算法能够提高复杂网络中的社区结构挖掘的准确度.关键词:社会网络;社区挖掘;差分演化;编码方式;......
evolution in these alloys was discussed. An amorphous alloy composition was found in this system and a melt-spinning amorphous alloy was produced in this composition. Through DSC analysis, the amorphous alloy......
and fully crystallized states were obtained by controlled annealing. The evolution of the crystallization process after annealing was characterized by differential scanning calorimeter (DSC) and X-ray......
Effects of Ce3+ on improvement of spectral characteristics and function of chloroplasts damaged by linolenic acid in spinach刘晓晴,迮玉官,刘超,周敏,李娜,段艳梅,殷四涛,洪法水摘 要:Linolenic acid has great effects on the structure and function of chloroplast. We studied the effects of Ce3+ on the improvement of chloroplast spectral characteristics and oxygen evolution damaged......
were synthesized using rare-earth acetates as precursors. The effects of reaction temperature and time on the phase transition process of the UCNPs were systematically studied. Based on the evolution......
联合补货策略下的供应商选择和订货量分配协同优化曾宇容,万建超,吕盛祥,王思睿,王林湖北经济学院信息与通信工程学院华中科技大学管理学院普天信息技术有限公司摘 要:分析基于联合补货策略的供应商选择与商品订货量分配协同决策问题,设计一种有效的改进差分进化算法(Improved differential evolution, IDE)进行求解.在考虑商品异质性带来的分组约束基础上,构建一种拓展的供应商选择与订货量分配协同决策新模型.对比算例分析表明, IDE在求解此问题及其扩展问题时优于标准差分进化算法和模拟退火算法,随机生成的大规模算例进一步验证了IDE求解此类复杂问题的优越性.关键词:供应商选择;订货量分配;联合补货;分组约束;差分进化算法;模拟退火算法;......
to investigate the evolution of dislocation configuration and strain induced precipitation behavior during relaxation process after deformation in Fe-Ni-Nb-Ti-C-B alloy. Experimental results indicate......
Aspects of microstructure in low carbon steels produced by the CSP processDelu Liu, Xiangdong Huo, Yuanli Wang, and Xianwen SunMaterials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正> The solidification structure, microstructure evolution during rolling and precipitates with nanometers......
corrosion.Based on the evolution of electrical parameters of the equivalent electrical circuit,it is suggested that the most probable mechanism of pit creation is the film breaking model.The result demonstrates......
="ChDivSummary" name="ChDivSummary">The evolution of shear bands in the glassy matrix composites was observed and analyzed during in-situ tension.Based on the simple calculation,the temperature rise......