A new system of vector quasi-equilibrium problems is introduced and its existence of solution is proved. As applications, some existence results of weak Pareto equilibrium for both constrained multicriteria games and ...A new system of vector quasi-equilibrium problems is introduced and its existence of solution is proved. As applications, some existence results of weak Pareto equilibrium for both constrained multicriteria games and multicriteria games without constrained correspondences are also shown.展开更多
数据库即服务(database as a service,DaaS)作为一种新型的数据存储提供模式被广泛应用.随着大数据时代的到来,数据量急剧增加,DaaS模式下的数据布局问题显得更加重要,即服务提供商如何根据应用中不同数据的性能需求对数据进行合理布局...数据库即服务(database as a service,DaaS)作为一种新型的数据存储提供模式被广泛应用.随着大数据时代的到来,数据量急剧增加,DaaS模式下的数据布局问题显得更加重要,即服务提供商如何根据应用中不同数据的性能需求对数据进行合理布局,将会对提高服务质量、增强用户体验和降低自身服务成本产生重要影响.然而对于服务提供者来说提高服务质量和降低服务成本是一对矛盾的目标.提出DaaS模式下的数据布局图概念,应用Pareto最优思想适合于解决多目标矛盾性问题的特点,给出一个基于性能-代价均衡的多节点DaaS数据布局策略.通过与随机策略和贪婪策略等传统策略的实验比较,方法能保证DaaS服务提供商用尽可能少的代价为用户提供更好的服务质量,实现服务质量与资源代价两个目标的均衡.展开更多
Recognizing the fact that a player’s cognition plays a defining role in the resulting equilibrium of a game of competition, this paper provides the foundation for a Nash game with forward-looking players by presentin...Recognizing the fact that a player’s cognition plays a defining role in the resulting equilibrium of a game of competition, this paper provides the foundation for a Nash game with forward-looking players by presenting a formal definition of the Nash game with consideration of the players’ belief. We use a simple two-firm model to demonstrate its fundamental difference from the standard Nash and Stackelberg games. Then we show that the players’ belief functions can be regarded as the optimization parameters for directing the game towards a much more desirable equilibrium.展开更多
A class of quasi-equilibrium problems and a class of constrained multiobjective games were introduced and studied in generalized convex spaces without linear structure. First, two existence theorems of solutions for q...A class of quasi-equilibrium problems and a class of constrained multiobjective games were introduced and studied in generalized convex spaces without linear structure. First, two existence theorems of solutions for quasi-equilibrium problems are proved in noncompact generalized convex spaces. Then, ar applications of the quasi-equilibrium existence theorem, several existence theorems of weighted Nash-equilibria and Pareto equilibria for the constrained multiobjective games are established in noncompact generalized convex spaces. These theorems improve, unify, and generalize the corresponding results of the multiobjective games in recent literatures.展开更多
基金Project supported by the National Natural Science Foundation of China (Nos.10171118 and 70432001) the Applied Basic Research Foundation of Chongqing(No.030801) the Natural Science Foundation of Chongqing(No.8409) and the Postdoctoral Science Foundation of China
文摘A new system of vector quasi-equilibrium problems is introduced and its existence of solution is proved. As applications, some existence results of weak Pareto equilibrium for both constrained multicriteria games and multicriteria games without constrained correspondences are also shown.
文摘数据库即服务(database as a service,DaaS)作为一种新型的数据存储提供模式被广泛应用.随着大数据时代的到来,数据量急剧增加,DaaS模式下的数据布局问题显得更加重要,即服务提供商如何根据应用中不同数据的性能需求对数据进行合理布局,将会对提高服务质量、增强用户体验和降低自身服务成本产生重要影响.然而对于服务提供者来说提高服务质量和降低服务成本是一对矛盾的目标.提出DaaS模式下的数据布局图概念,应用Pareto最优思想适合于解决多目标矛盾性问题的特点,给出一个基于性能-代价均衡的多节点DaaS数据布局策略.通过与随机策略和贪婪策略等传统策略的实验比较,方法能保证DaaS服务提供商用尽可能少的代价为用户提供更好的服务质量,实现服务质量与资源代价两个目标的均衡.
文摘Recognizing the fact that a player’s cognition plays a defining role in the resulting equilibrium of a game of competition, this paper provides the foundation for a Nash game with forward-looking players by presenting a formal definition of the Nash game with consideration of the players’ belief. We use a simple two-firm model to demonstrate its fundamental difference from the standard Nash and Stackelberg games. Then we show that the players’ belief functions can be regarded as the optimization parameters for directing the game towards a much more desirable equilibrium.
文摘A class of quasi-equilibrium problems and a class of constrained multiobjective games were introduced and studied in generalized convex spaces without linear structure. First, two existence theorems of solutions for quasi-equilibrium problems are proved in noncompact generalized convex spaces. Then, ar applications of the quasi-equilibrium existence theorem, several existence theorems of weighted Nash-equilibria and Pareto equilibria for the constrained multiobjective games are established in noncompact generalized convex spaces. These theorems improve, unify, and generalize the corresponding results of the multiobjective games in recent literatures.
