期刊文献+
共找到45篇文章
< 1 2 3 >
每页显示 20 50 100
Randy Crawford &Joe Sample《No Regrets》——注码不要投到一个篮子
1
作者 刘伟民 《明日风尚》 2009年第1期194-194,共1页
音乐市道下滑是世界性趋势,不是我们不再爱音乐,而是我们的消遣愈来愈多样化,音乐已未必是唯一或最主要的选择。消费模式的改变,直接影响唱片业的发展,某些市场狭窄的音乐模式,为了生存,不得不作出"技术性调整"。例如爵士乐手... 音乐市道下滑是世界性趋势,不是我们不再爱音乐,而是我们的消遣愈来愈多样化,音乐已未必是唯一或最主要的选择。消费模式的改变,直接影响唱片业的发展,某些市场狭窄的音乐模式,为了生存,不得不作出"技术性调整"。例如爵士乐手,不少都无可避免地加入更多流行元素,于是有人质疑,流行化了的爵士乐还算是爵士乐吗? 展开更多
关键词 流行化 唱片业 世界性趋势 市道 JOE SAMPLE NO regrets Randy Crawf
原文传递
Factors Influencing Decision Regret in Patients Undergoing Permanent Colostomy for Colorectal Cancer
2
作者 Mingxuan Zhang 《Proceedings of Anticancer Research》 2025年第6期35-42,共8页
Objective:To explore factors influencing decision regret among colorectal cancer patients undergoing intestinal ostomy.Methods:A questionnaire survey was conducted among 102 colorectal cancer patients who underwent in... Objective:To explore factors influencing decision regret among colorectal cancer patients undergoing intestinal ostomy.Methods:A questionnaire survey was conducted among 102 colorectal cancer patients who underwent intestinal ostomy surgery and visited the ostomy clinic at a tertiary hospital in Baoding from July to September 2025.The Chinese version of the Ostomy Adaptation Inventory(OAI-20),Decision Regret Scale(DRS),Decision Conflict Scale(DCS),and Functional Assessment of Cancer Therapy-Colorectal(FACT-C)were used to measure patients’adaptation to stoma,decision regret,decision conflict,and quality of life.The Shared Decision-Making Questionnaire(SDM-Q-9)assessed patient involvement in ostomy surgery decisions,while the SSUK-8 evaluated social support.Additional items explored perceptions related to decision-making,participation,and outcomes.Results:Among 134 eligible patients attending the clinic,120 participated in the questionnaire,with 102 completing all items.Stoma patients reported an average decision regret score of 60.83(SD 28.43),an average coping ability score of 54.26(SD 26.69),an average decision conflict score of 62.55(SD 25.95),and a quality of life score of 56.93(SD 27.46).In the multiple regression analysis,decision regret was associated with decision conflict,poor patient coping ability,low quality of life,and low social support.Conclusion:Decision regret is prevalent among Chinese CRC patients following ostomy surgery.Compared with similar studies in other regions,Chinese CRC patients exhibit a higher rate of regret.This may be related to lower patient involvement in decision-making,generally poorer quality of life,and heavier economic burdens. 展开更多
关键词 Decision regret Colorectal cancer Intestinal ostomy Decision conflict Quality of life
暂未订购
GENERALIZATION ANALYSIS FOR CVaR-BASED MINIMAX REGRET OPTIMIZATION
3
作者 TAO Yan-fang DENG Hao 《数学杂志》 2025年第2期111-121,共11页
This paper analyzes the generalization of minimax regret optimization(MRO)under distribution shift.A new learning framework is proposed by injecting the measure of con-ditional value at risk(CVaR)into MRO,and its gene... This paper analyzes the generalization of minimax regret optimization(MRO)under distribution shift.A new learning framework is proposed by injecting the measure of con-ditional value at risk(CVaR)into MRO,and its generalization error bound is established through the lens of uniform convergence analysis.The CVaR-based MRO can achieve the polynomial decay rate on the excess risk,which extends the generalization analysis associated with the expected risk to the risk-averse case. 展开更多
关键词 Minimax regret optimization(MRO) conditional value at risk(CVaR) distri-bution shift generalization error
在线阅读 下载PDF
An Enhanced VIKOR and Its Revisit for the Manufacturing Process Application
4
作者 Ting-Yu Lin Kuo-Chen Hung +1 位作者 Josef Jablonsky Kuo-Ping Lin 《Computers, Materials & Continua》 2025年第5期1901-1927,共27页
VlseKriterijumska Optimizacija I Kompromisno Resenje(VIKOR)has been developed and applied for over twenty-five years,gaining recognition as a prominent multi-criteria decision-making(MCDM)method.Over this period,numer... VlseKriterijumska Optimizacija I Kompromisno Resenje(VIKOR)has been developed and applied for over twenty-five years,gaining recognition as a prominent multi-criteria decision-making(MCDM)method.Over this period,numerous studies have explored its applications,conducted comparative analyses,integrated it with other methods,and proposed various modifications to enhance its performance.This paper aims to delve into the fundamental principles and objectives of VIKOR,which aim to maximize group utility and minimize individual regret simultaneously.However,this study identifies a significant limitation in the VIKOR methodology:its process amplifies the weight of individual regret,and the calculated index values further magnify this effect.This phenomenon not only affects the decision-making balance but also leads to the critical issue of ranking reversal,which undermines the reliability of the results.To address these shortcomings,this paper introduces an enhanced version of VIKOR that mitigates the impact of individual regret while preserving the method’s original objectives.This paper validates the effectiveness of the proposed enhanced VIKOR method using various MCDM approaches,including(1)ten different versions of VIKOR and(2)eleven commonly used MCDM methods.Furthermore,this study confirms that the enhanced VIKOR can be effectively applied across various existing VIKOR versions,broadening its adaptability.A sensitivity analysis is additionally performed by adjusting the criteria weights using the ordered weighted averaging method.An illustrative case study involving the selection of a manufacturing process validates the proposed model.The results show that the proposed model is robust and capable of producing more reliable outcomes.It also demonstrates its practicality and effectiveness in real-world decision-making scenarios. 展开更多
关键词 Multi-criteria decision-making(MCDM) VlseKriterijumska Optimizacija I Kompromisno Resenje(VIKOR) decision analysis evaluated group utility evaluated individual regret manufacturing process selection
在线阅读 下载PDF
金融生态与新型城镇化质量——基于面板分位数回归模型的实证检验 被引量:5
5
作者 李媛媛 董鹏 《河北大学学报(哲学社会科学版)》 CSSCI 北大核心 2016年第5期102-110,共9页
金融生态系统作为一个整体,把握着新型城镇化建设的命脉,发挥"输血"和"造血"的功能。基于2005—2014年除西藏外30个省、市、自治区的面板数据,构建金融生态系统和新型城镇化质量评价指标体系,利用系统耦合度模型和... 金融生态系统作为一个整体,把握着新型城镇化建设的命脉,发挥"输血"和"造血"的功能。基于2005—2014年除西藏外30个省、市、自治区的面板数据,构建金融生态系统和新型城镇化质量评价指标体系,利用系统耦合度模型和全局因子分析的方法分别测度各地区金融生态系统耦合协调度及新型城镇化质量水平,并通过分位数回归实证分析前者对后者的影响。实证结果表明,我国各地区金融生态系统耦合协调度和新型城镇化质量均存在着十分明显的空间差异;金融生态系统耦合与新型城镇化质量之间存在显著的正相关性,随着新型城镇化质量的提升,金融生态系统耦合对新型城镇化的促进作用表现得也更加明显。因此,各地区应注重金融生态系统耦合协调以及新型城镇化质量的双重提升,以实现二者的互动发展。 展开更多
关键词 金融生态系统 新型城镇化质量 耦合协调度 分位数回归
在线阅读 下载PDF
要他们道歉真的好难——谈“regret”,“sorry”和“apologize”的政治语辞区别
6
作者 刘正兵 《理论观察》 2008年第1期40-43,共4页
道歉是违背国际法义务的国际法主体对受害方的损害予以精神上的补偿所采取的法律责任形式。《奥本海国际法》指出:"不法行为者方面的正式道歉通常是必要的。"然而,自诩"文明世界"的美国却对其屡屡损害他国及其人民... 道歉是违背国际法义务的国际法主体对受害方的损害予以精神上的补偿所采取的法律责任形式。《奥本海国际法》指出:"不法行为者方面的正式道歉通常是必要的。"然而,自诩"文明世界"的美国却对其屡屡损害他国及其人民的权利和利益的行为拒不作出道歉。同样,其国民彬彬有礼的日本至今仍迟迟不对其侵略亚洲的历史事实作出诚恳的正式书面道歉。从美国对其他主权国家及人民的侵害并拒绝为之道歉的案例和日本对其侵略史所采取的否定、美化、甚至是颠倒黑白的态度与言行看美国、日本在对待其造成的对他国主权和人民利益受损的问题上难得作出道歉的个中缘由。 展开更多
关键词 道歉 REGRET SORRY apology 区别
在线阅读 下载PDF
分布式在线交替方向乘子法 被引量:10
7
作者 许浩锋 凌青 《计算机应用》 CSCD 北大核心 2015年第6期1595-1599,1616,共6页
针对如何对分布式网络采集的数据进行在线学习的问题,提出了一种基于交替方向乘子法(ADMM)的分布式在线学习优化算法——分布式在线交替方向乘子法(DOM)。首先,针对分布式在线学习需要各节点根据新采集的数据来更新本地估计,同时保持网... 针对如何对分布式网络采集的数据进行在线学习的问题,提出了一种基于交替方向乘子法(ADMM)的分布式在线学习优化算法——分布式在线交替方向乘子法(DOM)。首先,针对分布式在线学习需要各节点根据新采集的数据来更新本地估计,同时保持网络中所有节点的估计趋于一致这一问题,建立了数学模型并设计DOM算法对其进行求解。其次,针对分布式在线学习问题定义了Regret界,用以表征在线估计的性能;证明了当本地即时损失函数是凸函数时,DOM算法是收敛的,并给出了其收敛速度。最后,通过数值仿真实验结果表明,相比现有的分布式在线梯度下降法(DOGD)和分布式在线自主学习算法(DAOL),所提出的DOM算法具有更快的收敛性能。 展开更多
关键词 交替方向乘子法 在线学习 分布式网络 优化算法 REGRET
在线阅读 下载PDF
Cooperative and Competitive Multi-Agent Systems:From Optimization to Games 被引量:16
8
作者 Jianrui Wang Yitian Hong +4 位作者 Jiali Wang Jiapeng Xu Yang Tang Qing-Long Han Jürgen Kurths 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2022年第5期763-783,共21页
Multi-agent systems can solve scientific issues related to complex systems that are difficult or impossible for a single agent to solve through mutual collaboration and cooperation optimization.In a multi-agent system... Multi-agent systems can solve scientific issues related to complex systems that are difficult or impossible for a single agent to solve through mutual collaboration and cooperation optimization.In a multi-agent system,agents with a certain degree of autonomy generate complex interactions due to the correlation and coordination,which is manifested as cooperative/competitive behavior.This survey focuses on multi-agent cooperative optimization and cooperative/non-cooperative games.Starting from cooperative optimization,the studies on distributed optimization and federated optimization are summarized.The survey mainly focuses on distributed online optimization and its application in privacy protection,and overviews federated optimization from the perspective of privacy protection me-chanisms.Then,cooperative games and non-cooperative games are introduced to expand the cooperative optimization problems from two aspects of minimizing global costs and minimizing individual costs,respectively.Multi-agent cooperative and non-cooperative behaviors are modeled by games from both static and dynamic aspects,according to whether each player can make decisions based on the information of other players.Finally,future directions for cooperative optimization,cooperative/non-cooperative games,and their applications are discussed. 展开更多
关键词 Cooperative games counterfactual regret minimization distributed optimization federated optimization fictitious
在线阅读 下载PDF
Three-Way Behavioral Decision Making With Hesitant Fuzzy Information Systems:Survey and Challenges 被引量:3
9
作者 Jianming Zhan Jiajia Wang +1 位作者 Weiping Ding Yiyu Yao 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2023年第2期330-350,共21页
Three-way decision(T-WD)theory is about thinking,problem solving,and computing in threes.Behavioral decision making(BDM)focuses on effective,cognitive,and social processes employed by humans for choosing the optimal o... Three-way decision(T-WD)theory is about thinking,problem solving,and computing in threes.Behavioral decision making(BDM)focuses on effective,cognitive,and social processes employed by humans for choosing the optimal object,of which prospect theory and regret theory are two widely used tools.The hesitant fuzzy set(HFS)captures a series of uncertainties when it is difficult to specify precise fuzzy membership grades.Guided by the principles of three-way decisions as thinking in threes and integrating these three topics together,this paper reviews and examines advances in three-way behavioral decision making(TW-BDM)with hesitant fuzzy information systems(HFIS)from the perspective of the past,present,and future.First,we provide a brief historical account of the three topics and present basic formulations.Second,we summarize the latest development trends and examine a number of basic issues,such as one-sidedness of reference points and subjective randomness for result values,and then report the results of a comparative analysis of existing methods.Finally,we point out key challenges and future research directions. 展开更多
关键词 Hesitant fuzzy information system(HFIS) prospect theory regret theory three-way decision(T-WD)
在线阅读 下载PDF
分布式在线条件梯度优化算法 被引量:2
10
作者 李德权 董翘 周跃进 《计算机科学》 CSCD 北大核心 2019年第3期332-337,共6页
针对现有分布式在线优化算法所面临的高维约束难以计算的问题,提出一种分布式在线条件梯度优化算法(Distributed Online Conditional Gradient Optimization Algorithm,DOCG)。首先,通过多个体网络节点间的相互协作进行数据采集,并通过... 针对现有分布式在线优化算法所面临的高维约束难以计算的问题,提出一种分布式在线条件梯度优化算法(Distributed Online Conditional Gradient Optimization Algorithm,DOCG)。首先,通过多个体网络节点间的相互协作进行数据采集,并通过共享采集的信息更新局部估计,同时引入反映环境变化的局部即时损失函数。然后,该算法利用历史梯度信息进行加权平均,提出一种新的梯度估计方案,其用线性优化步骤替代投影步骤,避免了投影运算在高维约束时难以计算的问题。最后,通过分析表征在线估计性能的Regret界,证明了所提DOCG算法的收敛性。利用低秩矩阵填充问题进行仿真验证,结果表明,相比于现有分布式在线梯度下降法(DOGD),所提DOCG算法具有更快的收敛速度。 展开更多
关键词 条件梯度 无投影 分布式网络 在线学习 Regret界
在线阅读 下载PDF
快速在线分布式对偶平均优化算法 被引量:1
11
作者 李德权 王俊雅 +1 位作者 马驰 周跃进 《计算机应用》 CSCD 北大核心 2018年第8期2337-2342,共6页
为提高分布式在线优化算法的收敛速度,对底层网络拓扑依次添边,提出一种快速的一阶分布式在线对偶平均优化(FODD)算法。首先,对于分布式在线优化问题,运用添边方法使所选的边与网络模型快速混合,进而建立数学模型并设计FODD算法对其进... 为提高分布式在线优化算法的收敛速度,对底层网络拓扑依次添边,提出一种快速的一阶分布式在线对偶平均优化(FODD)算法。首先,对于分布式在线优化问题,运用添边方法使所选的边与网络模型快速混合,进而建立数学模型并设计FODD算法对其进行优化求解。其次,揭示了网络拓扑和在线分布式对偶平均收敛速度之间的关系,通过提高底层拓扑网络的代数连通度改进了Regret界,将在线分布式对偶平均(ODDA)算法从静态网络拓展到时变网络拓扑上,并证明了FODD算法的收敛性,同时解析地给出了收敛速度。最后的数值仿真表明:和ODDA算法相比,所提出的FODD算法具有更快的收敛速度。 展开更多
关键词 分布式网络 在线分布式对偶平均 Regret界 代数连通度 拉普拉斯矩阵
在线阅读 下载PDF
Optimal paths planning in dynamic transportation networks with random link travel times 被引量:3
12
作者 孙世超 段征宇 杨东援 《Journal of Central South University》 SCIE EI CAS 2014年第4期1616-1623,共8页
A theoretical study was conducted on finding optimal paths in transportation networks where link travel times were stochastic and time-dependent(STD). The methodology of relative robust optimization was applied as mea... A theoretical study was conducted on finding optimal paths in transportation networks where link travel times were stochastic and time-dependent(STD). The methodology of relative robust optimization was applied as measures for comparing time-varying, random path travel times for a priori optimization. In accordance with the situation in real world, a stochastic consistent condition was provided for the STD networks and under this condition, a mathematical proof was given that the STD robust optimal path problem can be simplified into a minimum problem in specific time-dependent networks. A label setting algorithm was designed and tested to find travelers' robust optimal path in a sampled STD network with computation complexity of O(n2+n·m). The validity of the robust approach and the designed algorithm were confirmed in the computational tests. Compared with conventional probability approach, the proposed approach is simple and efficient, and also has a good application prospect in navigation system. 展开更多
关键词 min-max relative regret approach robust optimal path problem stochastic time-dependent transportation networks stochastic consistent condition
在线阅读 下载PDF
Partial observation learning-based task offloading and spectrum allocation in UAV collaborative edge computing 被引量:1
13
作者 Chaoqiong Fan Xinyu Wu +1 位作者 Bin Li Chenglin Zhao 《Digital Communications and Networks》 CSCD 2024年第6期1635-1643,共9页
Capable of flexibly supporting diverse applications and providing computation services,the Mobile Edge Computing(MEC)-assisted Unmanned Aerial Vehicle(UAV)network is emerging as an innovational paradigm.In this paradi... Capable of flexibly supporting diverse applications and providing computation services,the Mobile Edge Computing(MEC)-assisted Unmanned Aerial Vehicle(UAV)network is emerging as an innovational paradigm.In this paradigm,the heterogeneous resources of the network,including computing and communication resources,should be allocated properly to reduce computation and communication latency as well as energy consumption.However,most existing works solely focus on the optimization issues with global information,which is generally difficult to obtain in real-world scenarios.In this paper,fully considering the incomplete information resulting from diverse types of tasks,we study the joint task offloading and spectrum allocation problem in UAV network,where free UAV nodes serve as helpers for cooperative computation.The objective is to jointly optimize offloading mode,collaboration pairing,and channel allocation to minimize the weighted network cost.To achieve the purpose with only partial observation,an extensive-form game is introduced to reformulate the problem,and a regret learning-based scheme is proposed to achieve the equilibrium solution.With retrospective improvement property and information set concept,the designed algorithm is capable of combating incomplete information and obtaining more precise allocation patterns for diverse tasks.Numerical results show that our proposed algorithm outperforms the benchmarks across various settings. 展开更多
关键词 UAV networks Edge computing Task offloading Spectrum allocation Partial observation Regret learning
在线阅读 下载PDF
Random Regret Minimization Model of Carpool Travel Choice for Urban Residents Considering Perceived Heterogeneity and Psychological Distance 被引量:1
14
作者 XIAO Qiang HE Ruichun WANG Ziyi 《Journal of Shanghai Jiaotong university(Science)》 2024年第6期995-1008,共14页
Carpooling is a sustainable,economical,and environmentally friendly solution to reduce air pollution and ease traffic congestion in urban areas.However,existing regret theories lack consideration of the heterogeneity ... Carpooling is a sustainable,economical,and environmentally friendly solution to reduce air pollution and ease traffic congestion in urban areas.However,existing regret theories lack consideration of the heterogeneity of attribute perception in different ways and the psychological factors that affect regret,so they cannot accurately portray urban residents’carpool travel decisions and cannot provide a correct explanation of the actual carpool choice behavior.In this paper,based on the analysis of classical random regret minimization models and random regret minimization models considering heterogeneity,the concept of psychological distance is introduced to address shortcomings of the existing models and construct an improved random regret minimization model considering heterogeneity and psychological distance.The results show that the fit and explanatory effect of the improved model proposed in this paper is better than that of the other two models.The psychological distance of travel residents during the Corona Virus Disease 2019(COVID-19)affects the anticipated regret value and the willingness to carpool.The model can better describe the carpool travel choice mechanism of travelers and effectively explain the carpool travel choice behavior of travelers. 展开更多
关键词 carpool travel behavior random regret minimization theory anticipated regret value perceived heterogeneity psychological distance
原文传递
Decision Making Approach with Focus Point and Regret
15
作者 LI Yonggang HU Xiangpei 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2019年第6期519-523,共5页
In this paper, decision making under uncertainty with regret is studied. The alternative is evaluated by focus point to fit the feature that the decision process cannot be repeated many times. If the objective capture... In this paper, decision making under uncertainty with regret is studied. The alternative is evaluated by focus point to fit the feature that the decision process cannot be repeated many times. If the objective captured by focus point is not achieved, there is a regret. The regret of an action is determined by the focus point of the other actions. The set of the alternatives available is updated by the regret threshold, and the optimal action can be obtained by the selected focus point of each alternative. The proposed method is a new fundamental alternative for decision making under uncertainty. Using focus point as reference gives the regret a clear meaning. The decision making procedure matches the intuitive expectations of human being. It explains the phenomena that does not conform to classical decision making theory. 展开更多
关键词 DECISION MAKING under uncertainty REGRET FOCUS POINT LIKELIHOOD
原文传递
Distributed regularized online optimization using forward-backward splitting
16
作者 Deming Yuan Baoyong Zhang +1 位作者 Shengyuan Xu Huanyu Zhao 《Control Theory and Technology》 EI CSCD 2023年第2期212-221,共10页
This paper considers the problem of distributed online regularized optimization over a network that consists of multiple interacting nodes.Each node is endowed with a sequence of loss functions that are time-varying a... This paper considers the problem of distributed online regularized optimization over a network that consists of multiple interacting nodes.Each node is endowed with a sequence of loss functions that are time-varying and a regularization function that is fixed over time.A distributed forward-backward splitting algorithm is proposed for solving this problem and both fixed and adaptive learning rates are adopted.For both cases,we show that the regret upper bounds scale as O(VT),where T is the time horizon.In particular,those rates match the centralized counterpart.Finally,we show the effectiveness of the proposed algorithms over an online distributed regularized linear regression problem. 展开更多
关键词 Distributed online optimization Regularized online learning REGRET Forward-backward splitting
原文传递
Corrigendum to “Verification of a laboratory-based dilation model for in situ conditions using continuum models” [J Rock Mech Geotech Eng6 (2014) 522e534]
17
作者 G. Walton M.S. Diederichs +1 位作者 L.R. Alejano J. Arzúa 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2017年第2期382-382,共1页
The authors regret that the photographic image in Fig. 4a of the published article was used in error, and therefore without proper referencing or permission from the originator or copyright holder. The image used in F... The authors regret that the photographic image in Fig. 4a of the published article was used in error, and therefore without proper referencing or permission from the originator or copyright holder. The image used in Fig. 4a of the original manuscript has been previously published by and remains under copyright by the Society for Mining, Metallurgy, and Exploration, Inc. (SME) associated with the following paper.Moalli S, Redmond S, Brox D, Procter P, Jezek D, van der Pouw Kraan M, Blanchet R, Kulka R. TBM Tunneling at the Ashlu Hydro Power Project, Squamish, BC. In: Almeraris G, Mariucci B. editors. Proceedings of Rapid Excavation and Tunnelling 2009. The Society for Mining,Metallurgy, and Exploration, Inc. (SME). 2009. pp. 1208e1217.To correct this error though this Corrigendum, Fig. 4 in this article is replaced with the following set of images. The caption remains unchanged from the original but is included here for convenience and clarity. 展开更多
关键词 REGRET photographic MANUSCRIPT
在线阅读 下载PDF
Multi-Attribute Selection Procedures Based on Regret and Rejoice for the Decision-Maker
18
作者 Hanan Abdullah Mengash Manel Farouk Ayadi 《Computers, Materials & Continua》 SCIE EI 2022年第2期2777-2795,共19页
Feelings influence human beings’decision-making;therefore,incorporation of feeling factors in decision-making is very important.Regret and rejoice are very important emotional feelings that can have a great impact on... Feelings influence human beings’decision-making;therefore,incorporation of feeling factors in decision-making is very important.Regret and rejoice are very important emotional feelings that can have a great impact on decision-making if they are considered together.While regret has received most of the attention in related research,rejoice has been less considered even though it can greatly influence people’s preferences in decision-making.Furthermore,systematically incorporating regret and rejoice in the multicriteria decision-making(MCDM)modeling frameworks for decision-making has received little research attention.In this paper,we introduce a new multiattribute selection procedure that incorporates both regret and rejoice to select the best choice.We utilize the positional advantage operator concept to develop regret and rejoice mathematical equations,and prove them.The proposed MCDM procedure that incorporates these two emotional factors offers a decision-maker the flexibility to trade off some benefits in order to gain a state of psychological satisfaction.More specifically,regret and rejoice are presentedmathematically to enable the decision-maker to determine the values of regret and rejoice,and then make the decision in which the rejoice value is higher than the regret value.To test the performance of this new procedure,we apply it to three numerical examples proposed in previous works.The results are matched with those obtained by other methods such as the regret model,VIKOR,PROMETHEE I,and PROMETHEE II,thereby proving the efficacy of the new procedure. 展开更多
关键词 Multi-criteria decision-making positional advantage operator REGRET rejoice
在线阅读 下载PDF
基于Bandit反馈的在线分布式镜面下降算法
19
作者 朱小梅 李觉友 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2022年第1期99-107,共9页
针对在线分布式优化中一类损失函数梯度信息获取困难的问题,提出一种基于Bandit反馈的在线分布式镜面下降(ODMD-B)算法.首先,推广在线分布式镜面梯度下降(ODMD)算法到免梯度的情形,提出了一种新的仅利用函数值信息来对梯度进行估计的方... 针对在线分布式优化中一类损失函数梯度信息获取困难的问题,提出一种基于Bandit反馈的在线分布式镜面下降(ODMD-B)算法.首先,推广在线分布式镜面梯度下降(ODMD)算法到免梯度的情形,提出了一种新的仅利用函数值信息来对梯度进行估计的方法即Bandit反馈,其关键在于利用损失函数值信息逼近梯度信息,能有效克服梯度信息难以获取或计算复杂的困难.然后,给出算法的收敛性分析.结果表明算法的收敛速度为O(T),其中T是迭代次数.最后,使用投资组合选择模型进行了数值仿真实验.实验结果表明,ODMD-B算法的收敛速度与已有的ODMD算法的收敛速度接近.对比ODMD算法,本文所提出算法的优点在于仅仅使用了计算花费较小的函数值信息,使其更适用于梯度信息难以获取的优化问题. 展开更多
关键词 在线学习 分布式优化 镜面下降算法 Bandit反馈 Regret界
原文传递
Maximum Group Perceived Utility Consensus Models Considering Regret Aversion
20
作者 XUE Yuqin CHENG Dong 《Journal of Donghua University(English Edition)》 CAS 2022年第2期163-175,共13页
In the consensus-reaching process(CRP),the actual utility of decision-makers(DMs)is often influenced by the psychological behavior of regret aversion.However,the influence of regret aversion on DMs’utilities is rarel... In the consensus-reaching process(CRP),the actual utility of decision-makers(DMs)is often influenced by the psychological behavior of regret aversion.However,the influence of regret aversion on DMs’utilities is rarely taken into account in the existing consensus models.The consensus-reaching problem of DMs with regret aversion is explored to maximize their perceived utilities under a limited budget.Firstly,three basic types of perceived utility functions are constructed based on the regret theory to describe the perceived utility of DMs with various preferences.Then,considering the limited budget and individual regret aversion,the maximum perceived utility consensus models based on types of left-skewed,right-skewed,middle-skewed,and heterogeneous utility preferences are proposed to achieve the consensus that maximizes the group perceived utility.After that,an example of land-transfer price negotiation in China is given to illustrate the validity of the proposed models.Finally,the model comparison and the sensitivity analysis are presented to reveal the influence of DMs’regret aversion on the CRP.The results suggest that the DMs’regret aversion will not affect left-skewed and right-skewed groups,but will affect the consensus results of middle-skewed and heterogeneous groups. 展开更多
关键词 regret aversion consensus model interval preference maximum perceived utility
在线阅读 下载PDF
上一页 1 2 3 下一页 到第
使用帮助 返回顶部