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1.
《工矿自动化》2013,(11):98-102
针对煤矿安全生产预警评价指标多,且各指标受很多因素影响的问题,构建了基于模糊层次分析法的煤矿安全生产预警系统。该系统将层次分析法与模糊综合评判相结合,利用层次分析法确定各评价指标的权重,通过模糊评判矩阵进行模糊综合评判,最后将评价指标权重与模糊综合评判结果进行合成运算,从而确定煤矿安全等级和预警结果。实际应用结果验证了该系统的可行性和有效性。  相似文献   

2.
航天测控系统容灾能力评估是建设航天测控容灾系统的关键环节.通过对航天测控系统容灾能力评估因素进行深入分析,建立评价指标体系,利用层次分析法(AHP)确定各指标的组合权重;利用模糊评判方法建立模糊评判模型,计算容灾能力的综合评判值并做出决策.按照以上方法评估,航天测控系统的总体容灾能力等级是“较强”,但在灾难恢复管理、灾难恢复规划及灾难恢复技术措施等方面还需提高.结果表明,通过将层次分析法和模糊评判方法相结合对容灾能力进行评估,可以为容灾建设提供合理参考依据.  相似文献   

3.
为了确保CDMA网络资源的合理利用,提出一种基于模糊AHP的CDMA无线网络资源利用效率的评价方法.采用yaahp层次分析软件通过对CDMA无线网络资源指标选择建立层次分析模型,确定了各指标的组合权重;利用模糊综合评判(FCA)方法建立模糊评价模型,计算CDMA网络资源利用的综合评价并做出决策.实际案例表明,该方法通过将层次分析法和模糊综合评价方法相结合,有效的对定性指标和定量指标进行综合权衡分析,评价模型科学、合理地反映出实际评价结果,为CDMA无线网络资源及时调配提供合理依据.  相似文献   

4.
刘亚  胡寿松 《自动化学报》2003,29(6):859-866
针对一类具有多时滞的不确定非线性系统,提出了一种基于模糊模型和神经网络的组 合控制方法.利用具有多时滞的模糊T-S模型对系统进行近似建模并给出基于线性矩阵不等式 (LMI)的模糊H∞控制律.提出完全自适应RBF神经网络控制方法,通过在线自适应调整RBF 神经网络的权重、函数中心和宽度,来对消系统的未知不确定性和模糊建模误差的影响,不要求 系统的不确定项和模糊建模误差满足任何匹配条件或约束,并证明了闭环系统的稳定性.最后, 将所提出的方法应用到一具有多时滞的非线性混沌系统,仿真结果表明了该方法的有效性.  相似文献   

5.
为了进一步提高BP神经网络的性能,实现准确、快速预测电力系统负荷的目的,将蚁群算法(ACA)作为BP神经网络的学习算法,建立了一种新的蚁群神经网络(AcAN)预测模型.对某电力系统短期负荷预测的计算实例表明,基于蚁群神经网络的负荷预测方法与传统的BP神经网络预测方法相比,具有较强的自适应能力和较好的效果.  相似文献   

6.
基于实例推理系统中的权重分析   总被引:6,自引:0,他引:6  
艾芳菊 《计算机应用》2005,25(5):1022-1025
指标权重的确定在基于实例推理(CBR)系统的检索模型中起着重要的作用。采用基于多位专家的二级模糊综合评判方法求得各个指标的总的综合权重,对指标权重进行了讨论,并引入关联度的概念,讨论了各专家的偏离度及一致性。实例证明有效、可行。  相似文献   

7.
变权重模糊综合评判模型及其在故障诊断中的应用   总被引:12,自引:0,他引:12  
针对大型复杂系统故障诊断中的权重变化问题,提出和定义了变权重模糊综合评判模型;在模糊综合评判过程中,各评判因素对于不同评判等级具有不同权重的问题在新模型中得到恰当的描述,从而使大型复杂系统故障诊断的精度得到实质性的提高。故障诊断实例表明,变权重模糊综合评判模型对于解决实际问题是有效的,其结果明显优于采用传统固定权重模型的结果。  相似文献   

8.
藏文Web应用的质量模糊综合评判   总被引:1,自引:0,他引:1  
为给藏文Web应用提供一种定量的质量评判方法,将模糊数学中的模糊综合评判方法应用于对Web中藏文文字的规范呈现、藏文Web中的功能特性、效率和易用性等因素进行综合评价,提出了数学模型和评判方法,同时说明在模糊综合评判中权重至关重要,并且给出了权重的确定方法.最后通过实例说明这种方法在藏文Web评判中的应用中是有效和可行的.  相似文献   

9.
基于模糊神经网络的综合评判方法   总被引:5,自引:3,他引:2       下载免费PDF全文
李翔  苏成  王韶君 《计算机工程》2009,35(6):200-201
针对综合评判模型中主观因素影响评判精度问题,引入模糊神经网络优化评判模型的方法,采用模糊神经网络的训练过程逼近综合评判模型的权重集和隶属度函数。为了提高该方法的有效性,对网络训练算法进行多方面的优化,以便神经网络更快更稳定地收敛。结果证明该方法能较好地去除综合评判模型中的主观成分,有效地提高评判的最终精度。  相似文献   

10.
针对采用参数阈值法不能实时判断选煤厂设备运行状态的问题,设计了一种选煤厂设备运行状态综合评判系统。该系统首先选定评判指标并对其进行状态描述,然后建立各评判指标的隶属函数,确定各评判指标权重,最后通过模糊综合评判计算设备运行状态分数,根据状态分数预测设备运行状态的发展趋势,同时为检修工作提供对策支持。  相似文献   

11.
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.  相似文献   

13.
融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。  相似文献   

14.
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.  相似文献   

15.
This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.  相似文献   

16.
Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008  相似文献   

17.
《计算机科学》2007,34(4):148-148
Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.  相似文献   

18.
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.  相似文献   

19.
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.  相似文献   

20.
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.  相似文献   

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