针对离散车间生产计划缺乏通用的评价指标体系以及定性和定量相结合的综合评价方法,从经济性、时间性和适应性三个方面构建离散车间生产计划评价指标体系,提出一种基于组合赋权的离散车间生产计划综合评价方法。该方法通过综合可拓层次...针对离散车间生产计划缺乏通用的评价指标体系以及定性和定量相结合的综合评价方法,从经济性、时间性和适应性三个方面构建离散车间生产计划评价指标体系,提出一种基于组合赋权的离散车间生产计划综合评价方法。该方法通过综合可拓层次分析法、熵值法和改进CRITIC(Criteria Importance Through Intercriteria Correlation)法得到具有主客观意义的组合权重,提高了离散车间生产计划综合评价的科学性。实例验证结果表明该方法对数据的敏感程度更高,具有更好的评价灵敏度。展开更多
1 TOPSIS本身 TOPSIS法(Technique for Order Preference bySimilarity to Ideal Solution)的意思是“与理想方案相似性的顺序选优技术”,它是系统工作中有限方案多目标决策分析中用到的一种决策技术,曾在工业经济效益的综合评价中得到...1 TOPSIS本身 TOPSIS法(Technique for Order Preference bySimilarity to Ideal Solution)的意思是“与理想方案相似性的顺序选优技术”,它是系统工作中有限方案多目标决策分析中用到的一种决策技术,曾在工业经济效益的综合评价中得到应用。其原理系基于归一化后的原始数据矩阵,找出有限方案中的最优方案和最劣方案构成一个空间,而待评价的某方案则可视为该空间上的一个点,据此可获得该点与最优方案和最劣方案间的距离(常用Euclidean距离,又称欧氏距离),从而得出该方案与最优方案的相对接近程度,籍此可对该方案作出优劣的评价。展开更多
Cognitive Radio(CR) is a promising technology to solve the challenging spectrum scarcity problem.However, to implement CR, spectrum sensing is the groundwork and the precondition.In this paper, a collaborative spectru...Cognitive Radio(CR) is a promising technology to solve the challenging spectrum scarcity problem.However, to implement CR, spectrum sensing is the groundwork and the precondition.In this paper, a collaborative spectrum sensing scheme using fuzzy comprehensive evaluation is proposed.The final sensing decision of the proposed scheme is based on the combination of distributed sensing results of different Secondary Users(SUs).To improve the reliability of the sensing decision, the combination procedure takes into account the credibility of each SU, which is evaluated using fuzzy comprehensive evaluation.The effect of the presence of malicious SUs and malfunctioning SUs on the performance of the proposed scheme is also investigated.The efficiency of the scheme is validated through analysis and simulation.展开更多
文摘针对离散车间生产计划缺乏通用的评价指标体系以及定性和定量相结合的综合评价方法,从经济性、时间性和适应性三个方面构建离散车间生产计划评价指标体系,提出一种基于组合赋权的离散车间生产计划综合评价方法。该方法通过综合可拓层次分析法、熵值法和改进CRITIC(Criteria Importance Through Intercriteria Correlation)法得到具有主客观意义的组合权重,提高了离散车间生产计划综合评价的科学性。实例验证结果表明该方法对数据的敏感程度更高,具有更好的评价灵敏度。
文摘1 TOPSIS本身 TOPSIS法(Technique for Order Preference bySimilarity to Ideal Solution)的意思是“与理想方案相似性的顺序选优技术”,它是系统工作中有限方案多目标决策分析中用到的一种决策技术,曾在工业经济效益的综合评价中得到应用。其原理系基于归一化后的原始数据矩阵,找出有限方案中的最优方案和最劣方案构成一个空间,而待评价的某方案则可视为该空间上的一个点,据此可获得该点与最优方案和最劣方案间的距离(常用Euclidean距离,又称欧氏距离),从而得出该方案与最优方案的相对接近程度,籍此可对该方案作出优劣的评价。
基金Supported by the National Natural Science Foundation of China (No.60672079)the Natural Science Foundation of Jiangsu Province (No.BK2006701 and No. BK2007002)
文摘Cognitive Radio(CR) is a promising technology to solve the challenging spectrum scarcity problem.However, to implement CR, spectrum sensing is the groundwork and the precondition.In this paper, a collaborative spectrum sensing scheme using fuzzy comprehensive evaluation is proposed.The final sensing decision of the proposed scheme is based on the combination of distributed sensing results of different Secondary Users(SUs).To improve the reliability of the sensing decision, the combination procedure takes into account the credibility of each SU, which is evaluated using fuzzy comprehensive evaluation.The effect of the presence of malicious SUs and malfunctioning SUs on the performance of the proposed scheme is also investigated.The efficiency of the scheme is validated through analysis and simulation.
