An immune system based differential evolution algorithm using near-neighbor effect in dynamic enviro

来源 :控制理论与应用(英文版) | 被引量 : 0次 | 上传用户:sznc
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Many real-world problems are dynamic,requiring optimization algorithms being able to continuously track changing optima (optimum) over time.This paper proposes an improved differential evolutionary algorithm using the notion of the near-neighbor effect to determine one individuals neighborhoods,for tracking multiple optima in the dynamic environment.A new mutation strategy using the near-neighbor effect is also presented.It creates individuals by utilizing the stored memory point in its neighborhood,and utilizing the differential vector produced by the ‘near-neighbor-superior and ‘near-neighbor-inferior.Taking inspirations from the biological immune system,an immune system based scheme is presented for rapidly detecting and responding to the environmental changes.In addition,a difference-related multidirectional amplification scheme is presented to integrate valuable information from different dimensions for effectively and rapidly finding the promising optimum in the search space.Experiments on dynamic scenarios created by the typical dynamic test instance-moving peak problem,have demonstrated that the near-neighbor and immune system based differential evolution algorithm (NIDE) is effective in dealing with dynamic optimization functions.
其他文献
目的讨论正畸临床常用的反映上下颌骨矢状位置的经典头影测量角度能否客观地反映上下颌骨突度的实际改变.方法对48例错患者治疗前后的头颅侧位片进行计算机头影测量,选择3
目的探讨MR二维快速扰相梯度回波序列(2D FSPGR)显示肺实质灌注的可能性,以及在实验性肺栓塞中的应用价值。方法 11只在体犬肺栓塞模型在平静呼吸下行肺MR灌注扫描,定性及定量评
目的 了解白细胞介素 6 (IL 6 )、肿瘤坏死因子 α(TNF α)在骨质疏松症患者腰椎骨中的细胞定位、表达强度及其与骨密度 (BMD)的关系。 方法 用免疫组织化学方法 ,分别
目的探讨肺泡巨噬细胞(AM)在慢性阻塞性肺疾病(COPD)气道炎症中的作用.方法收集支气管肺泡灌洗液(BALF)和支气管黏膜,用ELISA法测定BALF和AM培养上清液中巨噬细胞炎症蛋白(MI
目的探讨线粒体脑肌病中MELAS型的临床、影像学、组织病理学特点及诊断方法.方法对4例MELAS患者的临床、影像学(CT、MRI)及组织病理学特点进行系统分析,观察3例患者的肌活检
目的探讨细胞凋亡和bcl-2及p53蛋白在胃肠道粘膜相关淋巴组织(MALT)淋巴瘤中的表达与MALT淋巴瘤恶性程度及预后的关系。方法收集我院1990年1月~1998年12月胃肠道MALT淋巴瘤32
急性Bell氏麻痹又称周围性面神经麻痹,是严寒风大的新疆地区常见的一种疾患,多发生在冬春季.我们采用脉冲高频透热疗法及脉冲电刺激疗法对240例患者进行综合康复治疗,现将结
目的 评估我国大系列急性非淋巴细胞白血病(acute nonlymphocytic leukemia, ANLL)的核型状况。方法 采用直接法和短期培养法制备骨髓细胞染色体,并以R显带为主、G显带为辅对1
目的 探讨间期荧光原位杂交(fluorescence in situ hybridization, FISH)技术在检测骨髓增生异常综合征(myelodysplastic syndrome, MDS)-7/7q-染色体异常中的价值。方法 
目的探索修复手指中节和末节皮肤缺损的新方法.方法 16例新鲜肢体血管灌注氧化铅-明胶混合液,通过X线片显示手背及指背皮肤内的血管结构和血管之间吻合类型.在此基础上设计并