电网规划投资决策不仅要考虑项目投入产出效益,而且要考虑地区投资环境和企业管理水平对项目投资的约束。为统筹协调电网规划投资决策中主观经验与客观数据、定性指标与定量指标、项目属性与环境属性,提出一种基于改进消去与选择转换法(...电网规划投资决策不仅要考虑项目投入产出效益,而且要考虑地区投资环境和企业管理水平对项目投资的约束。为统筹协调电网规划投资决策中主观经验与客观数据、定性指标与定量指标、项目属性与环境属性,提出一种基于改进消去与选择转换法(elimination et choice translating reality,ELECTRE)的电网规划投资多准则决策方法。首先,提出电网规划投资中效益、效率与效能多准则融合决策理念;其次,构建电网规划投资决策指标体系;再次,运用归档赋值法和偏好策略表对ELECTRE法进行改进,构建基于改进ELECTRE法的电网规划投资决策模型,提出电网规划投资决策流程;最后,通过案例验证方法的可行性。研究结果表明,该方法提升了投资效益、效率与效能,可为有关部门开展电网规划投资决策提供参考。展开更多
D-S evidence theory,as a general framework for reasoning with uncertainty,allows combining pieces of evidence from different information sources to derive a degree of belief function that is a type of fuzzy measure.Ho...D-S evidence theory,as a general framework for reasoning with uncertainty,allows combining pieces of evidence from different information sources to derive a degree of belief function that is a type of fuzzy measure.However,the mass assignments given by unknown information sources are disordered.How to measure the difference between the mass assignments has aroused people’s interest.In this paper,inspired by the information volume,a novel distance-based measure is proposed to measure the difference between mass assignments.The method can refine the uncertain information given by experts and compare the refined information to obtain the difference between mass assignments.At the same time,it is verified that the measure not only meets the properties of distance,but also proves the superiority of the proposed Information Volume Distance(IVD)through simulation experiments.Meanwhile,in the process of information fusion,the reliability of each source could be quantified through IVD.Therefore,based on IVD,a new multi-source information algorithm is proposed to solve the problem of multi-source information fusion.Moreover,algorithm is applied to decision-making problem and compare with other methods to verify the effectiveness.展开更多
Preterm births have been seen to have psychological and financial implications;current surveys suggest that amongst the various methods of preterm prediction,there is yet to exist a reliable and standard means of pred...Preterm births have been seen to have psychological and financial implications;current surveys suggest that amongst the various methods of preterm prediction,there is yet to exist a reliable and standard means of predicting preterm births.This study investigates the application of electrohysterogram and tocogram signals acquired at various points during the third pregnancy trimester,alongside information from the patients'medical health record regarding the pregnancy,towards preterm prediction and an associated delivery imminency timeline.In addition to this,the impact of both linear and non-linear dimensional embedding methods towards the preterm prediction is explored.The classification exercises were carried out using a support vector machine and decision tree,both of which have a certain degree of model interpretability and have potential to be introduced into a clinical operating framework.展开更多
文摘电网规划投资决策不仅要考虑项目投入产出效益,而且要考虑地区投资环境和企业管理水平对项目投资的约束。为统筹协调电网规划投资决策中主观经验与客观数据、定性指标与定量指标、项目属性与环境属性,提出一种基于改进消去与选择转换法(elimination et choice translating reality,ELECTRE)的电网规划投资多准则决策方法。首先,提出电网规划投资中效益、效率与效能多准则融合决策理念;其次,构建电网规划投资决策指标体系;再次,运用归档赋值法和偏好策略表对ELECTRE法进行改进,构建基于改进ELECTRE法的电网规划投资决策模型,提出电网规划投资决策流程;最后,通过案例验证方法的可行性。研究结果表明,该方法提升了投资效益、效率与效能,可为有关部门开展电网规划投资决策提供参考。
基金supported by the National Natural Science Foundation of China(No.62003280)Chongqing Talents:Exceptional Young Talents Project(No.cstc2022ycjhbgzxm0070)+1 种基金Natural Science Foundation of Chongqing,China(No.CSTB2022NSCQ-MSX0531)Chongqing Overseas Scholars Innovation Program(No.cx2022024).
文摘D-S evidence theory,as a general framework for reasoning with uncertainty,allows combining pieces of evidence from different information sources to derive a degree of belief function that is a type of fuzzy measure.However,the mass assignments given by unknown information sources are disordered.How to measure the difference between the mass assignments has aroused people’s interest.In this paper,inspired by the information volume,a novel distance-based measure is proposed to measure the difference between mass assignments.The method can refine the uncertain information given by experts and compare the refined information to obtain the difference between mass assignments.At the same time,it is verified that the measure not only meets the properties of distance,but also proves the superiority of the proposed Information Volume Distance(IVD)through simulation experiments.Meanwhile,in the process of information fusion,the reliability of each source could be quantified through IVD.Therefore,based on IVD,a new multi-source information algorithm is proposed to solve the problem of multi-source information fusion.Moreover,algorithm is applied to decision-making problem and compare with other methods to verify the effectiveness.
文摘Preterm births have been seen to have psychological and financial implications;current surveys suggest that amongst the various methods of preterm prediction,there is yet to exist a reliable and standard means of predicting preterm births.This study investigates the application of electrohysterogram and tocogram signals acquired at various points during the third pregnancy trimester,alongside information from the patients'medical health record regarding the pregnancy,towards preterm prediction and an associated delivery imminency timeline.In addition to this,the impact of both linear and non-linear dimensional embedding methods towards the preterm prediction is explored.The classification exercises were carried out using a support vector machine and decision tree,both of which have a certain degree of model interpretability and have potential to be introduced into a clinical operating framework.
