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Federated Multi-Label Feature Selection via Dual-Layer Hybrid Breeding Cooperative Particle Swarm Optimization with Manifold and Sparsity Regularization
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作者 Songsong Zhang Huazhong Jin +5 位作者 Zhiwei Ye Jia Yang Jixin Zhang Dongfang Wu Xiao Zheng Dingfeng Song 《Computers, Materials & Continua》 2026年第1期1141-1159,共19页
Multi-label feature selection(MFS)is a crucial dimensionality reduction technique aimed at identifying informative features associated with multiple labels.However,traditional centralized methods face significant chal... Multi-label feature selection(MFS)is a crucial dimensionality reduction technique aimed at identifying informative features associated with multiple labels.However,traditional centralized methods face significant challenges in privacy-sensitive and distributed settings,often neglecting label dependencies and suffering from low computational efficiency.To address these issues,we introduce a novel framework,Fed-MFSDHBCPSO—federated MFS via dual-layer hybrid breeding cooperative particle swarm optimization algorithm with manifold and sparsity regularization(DHBCPSO-MSR).Leveraging the federated learning paradigm,Fed-MFSDHBCPSO allows clients to perform local feature selection(FS)using DHBCPSO-MSR.Locally selected feature subsets are encrypted with differential privacy(DP)and transmitted to a central server,where they are securely aggregated and refined through secure multi-party computation(SMPC)until global convergence is achieved.Within each client,DHBCPSO-MSR employs a dual-layer FS strategy.The inner layer constructs sample and label similarity graphs,generates Laplacian matrices to capture the manifold structure between samples and labels,and applies L2,1-norm regularization to sparsify the feature subset,yielding an optimized feature weight matrix.The outer layer uses a hybrid breeding cooperative particle swarm optimization algorithm to further refine the feature weight matrix and identify the optimal feature subset.The updated weight matrix is then fed back to the inner layer for further optimization.Comprehensive experiments on multiple real-world multi-label datasets demonstrate that Fed-MFSDHBCPSO consistently outperforms both centralized and federated baseline methods across several key evaluation metrics. 展开更多
关键词 multi-label feature selection federated learning manifold regularization sparse constraints hybrid breeding optimization algorithm particle swarm optimizatio algorithm privacy protection
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Multi-Label Chinese Comments Categorization: Comparison of Multi-Label Learning Algorithms 被引量:4
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作者 Jiahui He Chaozhi Wang +2 位作者 Hongyu Wu Leiming Yan Christian Lu 《Journal of New Media》 2019年第2期51-61,共11页
Multi-label text categorization refers to the problem of categorizing text througha multi-label learning algorithm. Text classification for Asian languages such as Chinese isdifferent from work for other languages suc... Multi-label text categorization refers to the problem of categorizing text througha multi-label learning algorithm. Text classification for Asian languages such as Chinese isdifferent from work for other languages such as English which use spaces to separate words.Before classifying text, it is necessary to perform a word segmentation operation to converta continuous language into a list of separate words and then convert it into a vector of acertain dimension. Generally, multi-label learning algorithms can be divided into twocategories, problem transformation methods and adapted algorithms. This work will usecustomer's comments about some hotels as a training data set, which contains labels for allaspects of the hotel evaluation, aiming to analyze and compare the performance of variousmulti-label learning algorithms on Chinese text classification. The experiment involves threebasic methods of problem transformation methods: Support Vector Machine, Random Forest,k-Nearest-Neighbor;and one adapted algorithm of Convolutional Neural Network. Theexperimental results show that the Support Vector Machine has better performance. 展开更多
关键词 multi-label classification Chinese text classification problem transformation adapted algorithms
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Novel Apriori-Based Multi-Label Learning Algorithm by Exploiting Coupled Label Relationship 被引量:1
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作者 Zhenwu Wang Longbing Cao 《Journal of Beijing Institute of Technology》 EI CAS 2017年第2期206-214,共9页
It is a key challenge to exploit the label coupling relationship in multi-label classification(MLC)problems.Most previous work focused on label pairwise relations,in which generally only global statistical informati... It is a key challenge to exploit the label coupling relationship in multi-label classification(MLC)problems.Most previous work focused on label pairwise relations,in which generally only global statistical information is used to analyze the coupled label relationship.In this work,firstly Bayesian and hypothesis testing methods are applied to predict the label set size of testing samples within their k nearest neighbor samples,which combines global and local statistical information,and then apriori algorithm is used to mine the label coupling relationship among multiple labels rather than pairwise labels,which can exploit the label coupling relations more accurately and comprehensively.The experimental results on text,biology and audio datasets shown that,compared with the state-of-the-art algorithm,the proposed algorithm can obtain better performance on 5 common criteria. 展开更多
关键词 multi-label classification hypothesis testing k nearest neighbor apriori algorithm label coupling
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Multi-Label Feature Selection Based on Improved Ant Colony Optimization Algorithm with Dynamic Redundancy and Label Dependence
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作者 Ting Cai Chun Ye +5 位作者 Zhiwei Ye Ziyuan Chen Mengqing Mei Haichao Zhang Wanfang Bai Peng Zhang 《Computers, Materials & Continua》 SCIE EI 2024年第10期1157-1175,共19页
The world produces vast quantities of high-dimensional multi-semantic data.However,extracting valuable information from such a large amount of high-dimensional and multi-label data is undoubtedly arduous and challengi... The world produces vast quantities of high-dimensional multi-semantic data.However,extracting valuable information from such a large amount of high-dimensional and multi-label data is undoubtedly arduous and challenging.Feature selection aims to mitigate the adverse impacts of high dimensionality in multi-label data by eliminating redundant and irrelevant features.The ant colony optimization algorithm has demonstrated encouraging outcomes in multi-label feature selection,because of its simplicity,efficiency,and similarity to reinforcement learning.Nevertheless,existing methods do not consider crucial correlation information,such as dynamic redundancy and label correlation.To tackle these concerns,the paper proposes a multi-label feature selection technique based on ant colony optimization algorithm(MFACO),focusing on dynamic redundancy and label correlation.Initially,the dynamic redundancy is assessed between the selected feature subset and potential features.Meanwhile,the ant colony optimization algorithm extracts label correlation from the label set,which is then combined into the heuristic factor as label weights.Experimental results demonstrate that our proposed strategies can effectively enhance the optimal search ability of ant colony,outperforming the other algorithms involved in the paper. 展开更多
关键词 multi-label feature selection ant colony optimization algorithm dynamic redundancy high-dimensional data label correlation
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Optimization Model and Algorithm for Multi-Label Learning
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作者 Zhengyang Li 《Journal of Applied Mathematics and Physics》 2021年第5期969-975,共7页
<div style="text-align:justify;"> This paper studies a kind of urban security risk assessment model based on multi-label learning, which is transformed into the solution of linear equations through a s... <div style="text-align:justify;"> This paper studies a kind of urban security risk assessment model based on multi-label learning, which is transformed into the solution of linear equations through a series of transformations, and then the solution of linear equations is transformed into an optimization problem. Finally, this paper uses some classical optimization algorithms to solve these optimization problems, the convergence of the algorithm is proved, and the advantages and disadvantages of several optimization methods are compared. </div> 展开更多
关键词 Operations Research multi-label Learning Linear Equations Solving Optimization algorithm
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Exact quantum algorithm for unit commitment optimization based on partially connected quantum neural networks
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作者 Jian Liu Xu Zhou +1 位作者 Zhuojun Zhou Le Luo 《Chinese Physics B》 2025年第10期303-312,共10页
The quantum hybrid algorithm has recently become a very promising and speedy method for solving larger-scale optimization problems in the noisy intermediate-scale quantum(NISQ)era.The unit commitment(UC)problem is a f... The quantum hybrid algorithm has recently become a very promising and speedy method for solving larger-scale optimization problems in the noisy intermediate-scale quantum(NISQ)era.The unit commitment(UC)problem is a fundamental problem in the field of power systems that aims to satisfy the power balance constraint with minimal cost.In this paper,we focus on the implementation of the UC solution using exact quantum algorithms based on the quantum neural network(QNN).This method is tested with a ten-unit system under the power balance constraint.In order to improve computing precision and reduce network complexity,we propose a knowledge-based partially connected quantum neural network(PCQNN).The results show that exact solutions can be obtained by the improved algorithm and that the depth of the quantum circuit can be reduced simultaneously. 展开更多
关键词 quantum computing quantum algorithm unit commitment quantum neural network noisy intermediate-scale quantum era
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Learning Multi Labels from Single Label——An Extreme Weak Label Learning Algorithm 被引量:1
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作者 DUAN Junhong LI Xiaoyu MU Dejun 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2019年第2期161-168,共8页
This paper presents a novel algorithm for an extreme form of weak label learning, in which only one of all relevant labels is given for each training sample. Using genetic algorithm, all of the labels in the training ... This paper presents a novel algorithm for an extreme form of weak label learning, in which only one of all relevant labels is given for each training sample. Using genetic algorithm, all of the labels in the training set are optimally divided into several non-overlapping groups to maximize the label distinguishability in every group. Multiple classifiers are trained separately and ensembled for label predictions. Experimental results show significant improvement over previous weak label learning algorithms. 展开更多
关键词 weak-supervised LEARNING genetic algorithm multi-label classification
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An Improved Pigeon-Inspired Optimization for Multi-focus Noisy Image Fusion
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作者 Yingda Lyu Yunqi Zhang Haipeng Chen 《Journal of Bionic Engineering》 SCIE EI CSCD 2021年第6期1452-1462,共11页
Image fusion technology is the basis of computer vision task,but information is easily affected by noise during transmission.In this paper,an Improved Pigeon-Inspired Optimization(IPIO)is proposed,and used for multi-f... Image fusion technology is the basis of computer vision task,but information is easily affected by noise during transmission.In this paper,an Improved Pigeon-Inspired Optimization(IPIO)is proposed,and used for multi-focus noisy image fusion by combining with the boundary handling of the convolutional sparse representation.By two-scale image decomposition,the input image is decomposed into base layer and detail layer.For the base layer,IPIO algorithm is used to obtain the optimized weights for fusion,whose value range is gained by fusing the edge information.Besides,the global information entropy is used as the fitness index of the IPIO,which has high efficiency especially for discrete optimization problems.For the detail layer,the fusion of its coefficients is completed by performing boundary processing when solving the convolution sparse representation in the frequency domain.The sum of the above base and detail layers is as the final fused image.Experimental results show that the proposed algorithm has a better fusion effect compared with the recent algorithms. 展开更多
关键词 Improved pigeon-inspired optimization Convolutional sparse representation noisy image fusion Bionic algorithm
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Multiobjective Reptile Search Algorithm Based Effective Image Deblurring and Restoration 被引量:1
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作者 G.S.Yogananda J.Ananda Babu 《Journal of Artificial Intelligence and Technology》 2023年第4期154-161,共8页
Images are frequently affected because of blurring,and data loss occurred by sampling and noise occurrence.The images are getting blurred because of object movement in the scenario,atmospheric misrepresentations,and o... Images are frequently affected because of blurring,and data loss occurred by sampling and noise occurrence.The images are getting blurred because of object movement in the scenario,atmospheric misrepresentations,and optical aberrations.The main objective of image restoration is to evaluate the original image from the corrupted data.To overcome this issue,the multiobjective reptile search algorithm is proposed for performing an effective image deblurring and restoration(MORSA-IDR).The proposed MORSA is used in two different processes such as threshold and kernel parameter calculation.In that,threshold values are used for detecting and replacing the noisy pixel removal using deep residual network,and estimation of kernel is performed for deblurring the images.The main objective of the proposed MORSA-IDR is to enhance the process of deblurring for recovering low-level contextual information.The MORSA-IDR is evaluated using peak signal noise ratio(PSNR)and structural similarity index.The existing researches such as enhanced local maximum intensity(ELMI)prior and deep unrolling for blind deblurring(DUBLID)are used to evaluate the MORSA-IDR.The PSNR of MORSA-IDR for image 6 is 30.98 dB,which is high when compared with the ELMI and DUBLID. 展开更多
关键词 deep residual network estimation of kernel image deblurring and restoration multiobjective reptile search algorithm noisy pixel removal peak signal to noise ratio
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面向含噪中规模量子处理器的量子机器学习 被引量:2
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作者 石金晶 肖子萌 +2 位作者 王雯萱 张师超 李学龙 《计算机学报》 北大核心 2025年第3期602-631,共30页
量子计算与人工智能结合,在增强模型表达能力、加速和优化机器学习等方面可能产生颠覆性影响,有望突破人工智能领域所面临的可解释性差、最优解难等问题,量子人工智能已成为国内外重点关注的学科前沿。量子机器学习是量子人工智能领域... 量子计算与人工智能结合,在增强模型表达能力、加速和优化机器学习等方面可能产生颠覆性影响,有望突破人工智能领域所面临的可解释性差、最优解难等问题,量子人工智能已成为国内外重点关注的学科前沿。量子机器学习是量子人工智能领域的重要研究内容,它将量子计算基础理论与机器学习原理相结合,以实现具有量子加速的机器学习任务。随着量子计算软硬件的快速发展,含噪中规模量子(NISQ)处理器的学习优势被证明,国内外学者相继提出一系列量子机器学习方法,以挖掘量子计算助力人工智能技术发展的创新应用。然而,当前的量子机器学习仍局限于对算法的优化,缺乏系统层面的理论架构,仍有许多科学问题亟待解决。本文首先从量子机器学习系统表征角度出发,建立量子机器学习系统的层次模型,概括和总结了面向各类任务的量子机器学习方案,分析了量子机器学习在提高经典算法速度等方面可能体现的“量子优势”。接着根据量子机器学习系统的层次结构,从原理层、计算层、应用层这三个方面对现有量子机器学习方法进行了总结与梳理,系统性地分析和讨论了其中的关键问题与解决方案。最后,结合当前阶段量子人工智能的发展特点,重点分析了量子机器学习领域面临的科学问题与挑战,并对未来该领域的发展趋势进行了深入分析与展望。 展开更多
关键词 量子计算 量子人工智能 量子机器学习 量子算法 含噪中规模量子处理器
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基于超图的自监督推荐算法
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作者 贾小暾 温明 +3 位作者 杨晓龙 陈宝涛 李爱荣 任媛媛 《计算机工程与设计》 北大核心 2025年第3期834-840,共7页
为改善基于图神经网络的推荐模型在实际推荐场景中面临数据出现噪声和倾斜分布时性能下降的问题,提出一种基于超图的自监督推荐算法。采用超图Transformer捕捉用户与物品之间的全局关系,引入自监督学习以增强数据,提高模型的鲁棒性。在... 为改善基于图神经网络的推荐模型在实际推荐场景中面临数据出现噪声和倾斜分布时性能下降的问题,提出一种基于超图的自监督推荐算法。采用超图Transformer捕捉用户与物品之间的全局关系,引入自监督学习以增强数据,提高模型的鲁棒性。在实际数据集上的训练结果表明,模型在提升推荐效果方面表现优异,特别是在解决数据稀疏性和噪声问题上表现出较强的能力。通过消融实验进一步验证了这些发现,展现了该算法在现代推荐系统中的应用潜力。 展开更多
关键词 噪声数据 推荐算法 超图 全局关系 自监督学习 交互图 数据增强
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40kW三相交流充电桩噪声数据智能采集仿真
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作者 张军 康凯 +1 位作者 周惠 付学云 《计算机仿真》 2025年第7期156-160,共5页
由于充电桩噪声数据中存在冗余部分,使得采集中数据传输延迟和存储等待较长的情况,易发生数据丢失,难以确保数据采集的精度。因此,研究40kW三相交流充电桩噪声数据智能采集仿真方法。采用传感器智能感知充电桩产生的噪声数据模拟信号,... 由于充电桩噪声数据中存在冗余部分,使得采集中数据传输延迟和存储等待较长的情况,易发生数据丢失,难以确保数据采集的精度。因此,研究40kW三相交流充电桩噪声数据智能采集仿真方法。采用传感器智能感知充电桩产生的噪声数据模拟信号,并通过放大器放大传感器输出的模拟信号;利用时序控制单元控制整个采集过程的时序,确保各个单元按照预定的顺序和时间间隔进行工作;采用A/D采集单元转换模拟信号,得到充电桩噪声数据数字信号;微控制器利用自控精度旋转门算法,压缩噪声数据数字信号中的冗余部分,保留关键信息,减少数据传输延迟和存储等待时间,确保数据精度;通过存储单元存储压缩的噪声数据数字信号,并利用USB单元传输噪声数据至液晶显示器,以呈现充电桩噪声数据智能采集结果。仿真分析表明:该方法噪声数据的可压缩预测比较高,数据丢失率为0,可精准完成充电桩噪声数据智能采集。 展开更多
关键词 40kW三相交流 充电桩 噪声数据 智能采集仿真 自控精度 旋转门算法
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快速模拟退火算法用于噪声图像配准 被引量:5
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作者 肖开明 陈欣卓 郭光亚 《上海大学学报(自然科学版)》 CAS CSCD 2003年第5期389-392,397,共5页
提出一种基于快速模拟退火的噪声图像配准算法.将模拟退火算法纳入鲍威尔(Powell)直接搜索法可以使优化解不陷入局部极值解而获得全局优化解,而且可大大地提高运算效率.实验表明,该算法能对平移、旋转后的噪声图像进行有效地配准.
关键词 鲍威尔(Powell)法 模拟退火算法 布伦特(Brent)法 全局优化 图像配准 噪声图像
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离散噪声图像的光斑质心算法及其硬件实现 被引量:19
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作者 樊巧云 张广军 《光学精密工程》 EI CAS CSCD 北大核心 2011年第12期2992-2998,共7页
针对现有的光斑质心算法无法直接处理含有离散噪声点的图像,提出一种不依赖去噪预处理和噪声点剔除后处理,本身具有抗单点噪声能力的光斑质心定位算法,并通过现场可编程门阵列(FPGA)实现了该算法。首先分别标记背景像素、噪声像素和光... 针对现有的光斑质心算法无法直接处理含有离散噪声点的图像,提出一种不依赖去噪预处理和噪声点剔除后处理,本身具有抗单点噪声能力的光斑质心定位算法,并通过现场可编程门阵列(FPGA)实现了该算法。首先分别标记背景像素、噪声像素和光斑像素;然后通过对相邻像素标记的判断,完成对当前像素的标记;同时对属于同一光斑的像素进行质心参数累加,但不累加和存储判断为真正噪声点的像素。与现有方法相比,该方法能够充分利用FPGA的并行处理能力,在图像像素输出的同时完成光斑质心提取和噪声点像素去除,而且不需要存储预处理图像和噪声点像素,节省了存储空间。该方法为由于图像传感器长时间曝光而引起的高亮度离散噪声光斑图像的处理提供了有效的途径。 展开更多
关键词 噪声图像 光斑 质心算法 现场可编程门阵列
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小波去噪算法在含噪盲源分离中的应用 被引量:4
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作者 吴微 彭华 王彬 《数据采集与处理》 CSCD 北大核心 2015年第6期1286-1295,共10页
无噪模型下的盲源分离算法在信噪比较低的情况下并不适用。针对该情况一种解决方案就是先对含有高斯白噪声的混合信号进行去噪预处理,然后使用盲源分离算法进行分离。为此,本文提出了一种适用于信噪比较低条件下的基于平移不变量的小波... 无噪模型下的盲源分离算法在信噪比较低的情况下并不适用。针对该情况一种解决方案就是先对含有高斯白噪声的混合信号进行去噪预处理,然后使用盲源分离算法进行分离。为此,本文提出了一种适用于信噪比较低条件下的基于平移不变量的小波去噪算法。该算法首先使用高频系数滑动窗口法准确估计含噪混合信号的噪声方差,然后使用Bayesshrink阈值估计算法得到更加合理的阈值,最后在不降低去噪效果的同时缩小了平移不变量的范围,减少了运算量。实验仿真表明,在信噪比较低的情况下,与传统小波去噪算法相比,该算法可以更加有效地去除噪声,在很大程度上提升盲源分离算法的性能。 展开更多
关键词 小波阈值收缩算法 平移不变量 含噪盲源分离 贝叶斯收缩算法
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基于DREAM算法的含水层渗透系数空间变异特征识别 被引量:4
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作者 骆乾坤 吴剑锋 +2 位作者 杨运 吴吉春 马淑芬 《南京大学学报(自然科学版)》 CAS CSCD 北大核心 2016年第3期448-455,共8页
采用差分进化自适应Metropolis(DREAM)算法对描述含水层渗透系数空间变异特征的参数进行识别.利用直接傅里叶变换方法产生一组空间结构参数下的若干个渗透系数场实现,借鉴噪声遗传算法(NGA)思想,计算该组空间结构参数对应的贝叶斯后验... 采用差分进化自适应Metropolis(DREAM)算法对描述含水层渗透系数空间变异特征的参数进行识别.利用直接傅里叶变换方法产生一组空间结构参数下的若干个渗透系数场实现,借鉴噪声遗传算法(NGA)思想,计算该组空间结构参数对应的贝叶斯后验概率值,提高DREAM算法求解的效率.算例求解结果表明,DREAM算法能够有效获得含水层渗透系数空间结构参数的后验分布,并可得到对应的一系列渗透系数场,可为含水层参数空间变异性研究提供新的思路. 展开更多
关键词 渗透系数 空间变异特征 噪声遗传算法 DREAM
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噪声环境下遗传算法的性能评价 被引量:5
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作者 黎明 李军华 《电子学报》 EI CAS CSCD 北大核心 2010年第9期2090-2094,共5页
为了评价遗传算法在噪声环境下的优化性能,提出"平均最优解"和"最优解分布标准差"两个指标,实验结果表明新指标可以有效地评价噪声环境下遗传算法的优化性能.研究了实数编码遗传算法在噪声强度递增环境下的性能.结... 为了评价遗传算法在噪声环境下的优化性能,提出"平均最优解"和"最优解分布标准差"两个指标,实验结果表明新指标可以有效地评价噪声环境下遗传算法的优化性能.研究了实数编码遗传算法在噪声强度递增环境下的性能.结果表明小生境策略和多种群策略可以改善遗传算法在噪声环境下的性能,单点交叉在噪声环境下的性能要优于混合交叉. 展开更多
关键词 遗传算法 噪声环境 性能评价
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噪声环境下精英克隆选择算法的收敛性分析 被引量:2
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作者 洪露 龚成龙 +1 位作者 王经卓 纪志成 《控制理论与应用》 EI CAS CSCD 北大核心 2013年第11期1457-1461,共5页
利用随机过程相关理论对加性噪声环境下精英策略克隆选择算法(ECSA)的全局收敛性进行了研究.首先采用有序对的状态表示方法构造精英克隆选择算法在噪声环境中的Markov链;然后将算法种群中最佳亲和度函数的进化过程转化为下鞅,利用鞅理... 利用随机过程相关理论对加性噪声环境下精英策略克隆选择算法(ECSA)的全局收敛性进行了研究.首先采用有序对的状态表示方法构造精英克隆选择算法在噪声环境中的Markov链;然后将算法种群中最佳亲和度函数的进化过程转化为下鞅,利用鞅理论证明了种群最佳亲和度函数的全局收敛性;最后通过分析加性噪声环境下精英克隆选择算法的状态转移概率的特性,证明了精英克隆选择算法在加性噪声环境下最终能以概率1收敛到全局最优解. 展开更多
关键词 克隆选择算法 精英策略 加性噪声 鞅理论 转移概率
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噪声环境下遗传算法的收敛性和收敛速度估计 被引量:5
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作者 李军华 黎明 《电子学报》 EI CAS CSCD 北大核心 2011年第8期1898-1902,共5页
问题求解的环境往往非常复杂,不确定的环境因素、人为因素等都可导致问题处于噪声环境,从而影响实际优化问题的目标函数值的评价.噪声环境下遗传算法的研究在国内外均起步较晚,特别是收敛性和收敛速度的分析是该领域急待解决的问题.本... 问题求解的环境往往非常复杂,不确定的环境因素、人为因素等都可导致问题处于噪声环境,从而影响实际优化问题的目标函数值的评价.噪声环境下遗传算法的研究在国内外均起步较晚,特别是收敛性和收敛速度的分析是该领域急待解决的问题.本文根据优胜劣汰遗传算法的特性,基于吸收态Markov链的数学模型证明了噪声环境下优胜劣汰遗传算法的收敛性,提出了噪声环境下优胜劣汰遗传算法的首达最优解期望时间的估算方法. 展开更多
关键词 遗传算法 噪声环境 吸收态Markov链 收敛性 收敛速度
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R-DINA模型参数估计EM算法准确性检验 被引量:4
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作者 宋丽红 戴海琦 +1 位作者 汪文义 丁树良 《心理学探新》 CSSCI 2012年第5期410-413,422,共5页
DINA模型是一个倍受关注和得到广泛应用的认知诊断模型,但DINA模型在每个项目上只将被试分为掌握和未掌握两类。文章提出的改进的DINA模型(R-DINA)可以对被试进行更为细致的分类。文章首先简要介绍R-DINA模型和该模型参数估计的EM算法,... DINA模型是一个倍受关注和得到广泛应用的认知诊断模型,但DINA模型在每个项目上只将被试分为掌握和未掌握两类。文章提出的改进的DINA模型(R-DINA)可以对被试进行更为细致的分类。文章首先简要介绍R-DINA模型和该模型参数估计的EM算法,然后设计模拟实验对EM算法的参数估计准确性进行检验。实验结果表明,R-DINA模型的EM算法估计结果稳定,项目参数估计精度和被试分类准确性较高。 展开更多
关键词 认知诊断模型 R—DINA模型 参数估计 EM算法
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