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Application of petri net theory in fault diagnosis for rural electrical grid petri网理论在农村电网故障诊断中的应用
Xianmin Ma, J. Liu
A novel fault diagnosis method for 10KV rural electrical power grids based on Petri net theory is proposed in the paper. The structure of the 10KV rural power system network is built, the fault reasons are analyzed, the fault diagnosis models are established using the Petri net matrix analysis method, the decision-making strategies based on Petri net theory are presented for different fault types in order to ensure the stability of power grids and avoid accidents expanding. The feasibility using the Petri net theory in 10kv rural distribution power system for fault diagnosis is demonstrated with the practice case.
提出了一种基于Petri网理论的10KV农村电网故障诊断新方法。构建了10KV农村电网的网络结构,分析了故障原因,采用Petri网矩阵分析法建立了故障诊断模型,针对不同的故障类型提出了基于Petri网理论的决策策略,以保证电网的稳定,避免事故扩大。通过实例验证了Petri网理论在10kv农村配电系统故障诊断中的可行性。
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引用次数: 0
An improved Aihara chaotic neural network and its dynamic characteristics 一种改进的Aihara混沌神经网络及其动态特性
Yuehua Wu, Y. Wen, Li Wang
Emergence describes the macroscopic dynamic phenomena of complex systems with mutual effects of local members on each other. At present, emergent mechanism needs to be further studied, and types of researched emergence computation model are limited. The study method of well-known Swarm model also lacks of generality. A different emergent model which is improved from Aihara chaotic neural network is proposed in this paper to give the diversity of the current emergent model. Firstly, considering the features of emergent model and based on characteristics of Aihara chaotic neural network, the connection mechanism of cellular automata is introduced to the chaotic neural networks to improve it. By comparing with existing network model, there is an obvious emergency for the interaction rules and forms in our new model. Then, by calculating dynamic index of the model emergency of the model is verified. Finally, the emergence and chaos characteristics of improved model are proved via emergence analysis methods.
涌现描述的是局部成员相互作用的复杂系统的宏观动态现象。目前,应急机制有待深入研究,已研究的应急计算模型种类有限。众所周知的群体模型的研究方法也缺乏通用性。本文提出了一种基于Aihara混沌神经网络的新型应急模型,以反映当前应急模型的多样性。首先,考虑突发模型的特点,在Aihara混沌神经网络的基础上,将元胞自动机的连接机制引入混沌神经网络,对其进行改进;与现有的网络模型相比,新模型在交互规则和形式上有明显的不足。然后,通过计算模型的动态指标,对模型的应急情况进行了验证。最后,通过涌现分析方法证明了改进模型的涌现性和混沌性。
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引用次数: 0
By using the directed operators to find a solution to the Split Common Fixed Point problem 利用有向算子求出了分裂共不动点问题的解
Haixia Li, Junling Li
This paper proposes the Split Common Fixed Point problem, this type of problem requires finding a type of operator's Common Fixed Point in space, meanwhile, and the image of the Fixed Point under the Linear Transformation is also the Common Fixed Point of another type of operator's image in space. This paper also provides the solution to solve the split common fixed point problem by using the directed operators.
{"title":"By using the directed operators to find a solution to the Split Common Fixed Point problem","authors":"Haixia Li, Junling Li","doi":"10.1109/ICNC.2012.6234599","DOIUrl":"https://doi.org/10.1109/ICNC.2012.6234599","url":null,"abstract":"This paper proposes the Split Common Fixed Point problem, this type of problem requires finding a type of operator's Common Fixed Point in space, meanwhile, and the image of the Fixed Point under the Linear Transformation is also the Common Fixed Point of another type of operator's image in space. This paper also provides the solution to solve the split common fixed point problem by using the directed operators.","PeriodicalId":87274,"journal":{"name":"International Conference on Computing, Networking, and Communications : [proceedings]. International Conference on Computing, Networking and Communications","volume":"69 1","pages":"1031-1034"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/ICNC.2012.6234599","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72530809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A study of the relationship among prospective monitory, retrospective monitory and memory performance 前瞻性监测、回顾性监测与记忆表现关系的研究
Shuhua Su, Shuhua Yuan
In order to investigate the relationship of prospective monitory(the accuracy of judgment of learning as an indicator), retrospective monitory (the judgment of confidence as an indicator)and memory performance, we selected 85 senior high school students that are investigated through RJR paradigm and materials (meaningful and meaningless associated Chinese word-pairs). The results show that: (1) Memory performance is moderately related to the accuracy of judgment of learning (JOL) and judgment of confidence (JOC) (r=0.557, p<;0.01; r=0.595, p<;0.01);(2) The accuracy of judgment of learning and judgment of confidence have significant positive prediction of memory performance. Conclusion:There is closed relationships between σσmetamemory monitory and memory performance.
{"title":"A study of the relationship among prospective monitory, retrospective monitory and memory performance","authors":"Shuhua Su, Shuhua Yuan","doi":"10.1109/ICNC.2012.6234523","DOIUrl":"https://doi.org/10.1109/ICNC.2012.6234523","url":null,"abstract":"In order to investigate the relationship of prospective monitory(the accuracy of judgment of learning as an indicator), retrospective monitory (the judgment of confidence as an indicator)and memory performance, we selected 85 senior high school students that are investigated through RJR paradigm and materials (meaningful and meaningless associated Chinese word-pairs). The results show that: (1) Memory performance is moderately related to the accuracy of judgment of learning (JOL) and judgment of confidence (JOC) (r=0.557, p<;0.01; r=0.595, p<;0.01);(2) The accuracy of judgment of learning and judgment of confidence have significant positive prediction of memory performance. Conclusion:There is closed relationships between σσmetamemory monitory and memory performance.","PeriodicalId":87274,"journal":{"name":"International Conference on Computing, Networking, and Communications : [proceedings]. International Conference on Computing, Networking and Communications","volume":"41 1","pages":"550-552"},"PeriodicalIF":0.0,"publicationDate":"2012-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81268710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extract summarization using Concept-Obtained and Hybrid Parallel Genetic Algorithm 基于概念获取和混合并行遗传算法的提取摘要
M. Wang, Xinlai Tang
This paper proposes a special Chinese automatic summarization method based on Concept-Obtained and Hybrid Parallel Genetic Algorithm. The idea of our approach is to obtain concepts of words using HowNet as tool, and use concepts as feature, not words. We construct conceptual vector space model and use Hybrid Parallel Genetic Algorithm to form summary of documents. The automatic evaluation of document's summaries with n-gram score shows the system's effectiveness and feasibility.
提出了一种基于概念获取和混合并行遗传算法的特殊中文自动摘要方法。我们的方法是使用HowNet作为工具来获得单词的概念,并使用概念作为特征,而不是单词。我们构建概念向量空间模型,并使用混合并行遗传算法形成文档摘要。用n-gram评分对文档摘要进行自动评价,表明了该系统的有效性和可行性。
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引用次数: 5
SLAPv: A service level agreement enforcer for virtual networks SLAPv:虚拟网络的服务水平协议执行者
Hugo E. T. Carvalho, N. Fernandes, O. Duarte, G. Pujolle
In this paper we propose SLAPv, an efficient control system for service level agreements (SLAs) in virtual network environments. SLAPv fills a gap in the design of SLA enforcers by introducing the following set of control features: (i) verification of physical resource usage, (ii) retrieval of real-time profiles of virtual routers, and (iii) enforcement of the adequate usage of resources. Furthermore, SLAPv punishes virtual networks that do not respect their contracts. The control relies on fuzzy logic to enforce resource allocation according to usage profile of routers and the system load. The punishment depends on the exceeding violating value, and on the system load. Results obtained from a developed prototype show the efficiency of the proposed system under different conditions and strategic policies. Tests performed with RIPv2 running on virtual networks show that, for high load scenarios, misbehaving routers are forced to rapidly enter in conformity to their SLAs in less than five seconds.
本文提出了一种虚拟网络环境下服务水平协议(sla)的有效控制系统SLAPv。SLAPv通过引入以下控制特性填补了SLA执行器设计中的空白:(i)物理资源使用的验证,(ii)虚拟路由器的实时配置文件的检索,以及(iii)资源充分使用的强制执行。此外,SLAPv惩罚不遵守合同的虚拟网络。该控制依靠模糊逻辑,根据路由器的使用情况和系统负载进行资源分配。处罚取决于超过的违规值和系统负载。仿真结果表明,该系统在不同条件和策略下的有效性。在虚拟网络上运行RIPv2进行的测试表明,对于高负载场景,行为不正常的路由器被迫在不到5秒的时间内迅速进入符合其sla的状态。
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引用次数: 12
Study about the computer virus dissemination model based on complex network 基于复杂网络的计算机病毒传播模型研究
Kun Yuan, Wenjie Jia, Han Zhang, Tao Wang
In this paper, several basic models of complex networks be studied, and I improve the BA scale-free network model. According to the characteristics of transmission of the virus in real network, I take some experiments, and get the experimental data. According to experimental results, I put forward a specific containment strategy, and do the simulations. Find that this containment strategy plays a very good deterrent in the early spread of the virus.
本文研究了复杂网络的几种基本模型,并对BA无标度网络模型进行了改进。根据病毒在真实网络中的传播特点,进行了实验,得到了实验数据。根据实验结果,提出了具体的遏制策略,并进行了仿真。发现这种遏制策略对病毒的早期传播起到了很好的威慑作用。
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引用次数: 0
A recognition method for driver's intention based on genetic algorithm and ant colony optimization 基于遗传算法和蚁群优化的驾驶员意图识别方法
Zhou Shenpei, W. Chaozhong
A new recognition method for driver's intention is proposed in this study. Genetic algorithm (GA) has strong adaptability, robustness and quick global searching ability. It has such disadvantages as premature convergence, low convergence speed and so on. Ant colony optimization (ACO) converges on the optimization path through pheromone accumulation and renewal. It has the ability of parallel processing and global searching and the characteristic of positive feedback. But the convergence speed of ACO is lower at the beginning for there is only little pheromone difference on the path at that time. The hybrid algorithm of genetic algorithm and ant colony optimization adopts genetic algorithm to give pheromone to distribute. And then it makes use of ant colony optimization to give the precision of the solution. It develops enough advantage of the two algorithms. The comparative analysis on optimal performance is made by using the Camel function. Finally, the method is used for the optimized the decision tree of driver's intention recognition. The experimental result shows that the recognition method and the hybrid algorithm are feasible and effective.
本研究提出了一种新的驾驶员意图识别方法。遗传算法具有较强的适应性、鲁棒性和快速全局搜索能力。它具有收敛过早、收敛速度慢等缺点。蚁群优化算法通过信息素的积累和更新在优化路径上收敛。它具有并行处理和全局搜索的能力以及正反馈的特性。但蚁群算法在初始阶段的收敛速度较慢,因为当时路径上的信息素差异很小。遗传算法与蚁群算法的混合算法采用遗传算法进行信息素分配。然后利用蚁群算法给出了解的精度。充分发挥了两种算法的优势。利用Camel函数对最优性能进行了对比分析。最后,将该方法应用于驾驶员意图识别决策树的优化。实验结果表明,该识别方法和混合算法是可行和有效的。
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引用次数: 4
Enhancing ABC Optimization with Ai-Net Algorithm for solving project scheduling problem 用Ai-Net算法改进ABC优化求解项目调度问题
R. Xiao, Tinggui Chen
Project management is a complex decision making process involving the unrelenting pressures of time and cost. Firstly, the paper points out that multi-mode resource constrained multi-project scheduling problem(MRCMPSP) is one of typical multimodal optimization problems through analyzing its characteristics. The algorithm used to solving this problem should have powerful global and local searching abilities. Secondly, problem description conceptual model is presented. Then, enhancing artificial bee colony (ABC) optimization with artificial immune network algorithm (ai-Net) used to solve MRCMPSP is proposed. Finally, a numerical experiment derived from the project generator ProGen is given to test its performances. The results show the improved ABC proposed in this paper is superior to other algorithms.
项目管理是一个复杂的决策过程,涉及时间和成本的持续压力。本文首先通过分析多模式资源约束多项目调度问题的特点,指出多模式资源约束多项目调度问题是典型的多模式优化问题之一。用于解决该问题的算法应具有强大的全局和局部搜索能力。其次,提出了问题描述的概念模型。然后,提出了利用人工免疫网络算法(ai-Net)增强人工蜂群(ABC)优化,求解MRCMPSP问题。最后,利用工程生成器ProGen进行了数值实验,对其性能进行了测试。结果表明,本文提出的改进ABC算法优于其他算法。
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引用次数: 11
The nonlinear classification methods in MEG-based brain computer interface 基于微机电的脑机接口非线性分类方法
Ma Chongxiao, Wang Jin-jia, Zhou Li-na
The Magnetoencephalography (MEG) can be used as a control signal for brain computer (BCI), which contains the pattern information of the hand movement direction. In the MEG signal classification, the feature extraction based on signal processing and linear classification are usually used. The recognition rate has been difficult to improve. The principal component analysis (PCA) and linear discriminant analysis (LDA) method has been proposed for the feature extraction, and the non-linear nearest neighbor classification is introduced for the classifier. Based on the analysis of the confusion matrix, a data-dependent kernel optimization also studied for the nonlinear nearest neighbor classifier, which effect is better than the non-linear nearest neighbor classifier. The experimental results show that the PCA + LDA method is effective in the analysis of multi-channel MEG signals, and improve the recognition rate. The average recognition rate is better than the recognition rate in the BCI competition IV.
脑磁图(MEG)可以作为脑机(BCI)的控制信号,其中包含了手部运动方向的模式信息。在脑磁图信号分类中,通常采用基于信号处理的特征提取和线性分类。识别率一直难以提高。提出了主成分分析(PCA)和线性判别分析(LDA)方法进行特征提取,并引入非线性最近邻分类器进行分类。在分析混淆矩阵的基础上,研究了非线性最近邻分类器的数据依赖核优化,其效果优于非线性最近邻分类器。实验结果表明,PCA + LDA方法对多通道脑磁图信号的分析是有效的,提高了识别率。平均识别率优于BCI比赛IV的识别率。
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引用次数: 2
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International Conference on Computing, Networking, and Communications : [proceedings]. International Conference on Computing, Networking and Communications
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