As a crucial process in the coordinated strikes of unmanned aerial vehicles(UAVs), weapon-target assignment is vital for optimizing the allocation of available weapons and effectively exploiting the capabilities of UA...As a crucial process in the coordinated strikes of unmanned aerial vehicles(UAVs), weapon-target assignment is vital for optimizing the allocation of available weapons and effectively exploiting the capabilities of UAVs. Existing weapon-target assignment methods primarily focus on macro cluster constraints while neglecting individual strategy updates. This paper proposes a novel weapon-target assignment method for UAVs based on the multi-strategy threshold public goods game(PGG). By analyzing the concept mapping between weapon-target assignment for UAVs and multi-strategy threshold PGG, a weapon-target assignment model for UAVs based on the multi-strategy threshold PGG is established, which is adaptively complemented by the diverse cooperation-defection strategy library and the utility function based on the threshold mechanism. Additionally, a multi-chain Markov is formulated to quantitatively describe the stochastic evolutionary dynamics, whose evolutionary stable distribution is theoretically derived through the development of a strategy update rule based on preference-based aspiration dynamic. Numerical simulation results validate the feasibility and effectiveness of the proposed method, and the impacts of selection intensity, preference degree and threshold on the evolutionary stable distribution are analyzed. Comparative simulations show that the proposed method outperforms GWO, DE, and NSGA-II, achieving 17.18% higher expected utility than NSGA-II and reducing evolutionary stable times by 25% in large-scale scenario.展开更多
Good综合征（ Good syndrome, GS）是一种罕见的合并胸腺瘤的成人原发性免疫缺陷病，典型特征为低丙种球蛋白血症、免疫缺陷合并胸腺瘤，该病老年人高发，无性别差异，占胸腺瘤患者的10％，其发病机制尚不明确。主要临床表现为自身免疫...Good综合征（ Good syndrome, GS）是一种罕见的合并胸腺瘤的成人原发性免疫缺陷病，典型特征为低丙种球蛋白血症、免疫缺陷合并胸腺瘤，该病老年人高发，无性别差异，占胸腺瘤患者的10％，其发病机制尚不明确。主要临床表现为自身免疫性疾病合并反复机会性感染，特别是含荚膜细菌的感染，肺部为最常受累部位。郑州大学第一附属医院收治以顽固性腹泻为首诊的典型GS一例，现报道如下。展开更多
Nathaniel Hawthorne not only strongly condemns the belief that men are more evil than good, but also conveys the inclination towards good through the Scarlet Letter. The characters like Hester Prynne, Dimmesdale, ...Nathaniel Hawthorne not only strongly condemns the belief that men are more evil than good, but also conveys the inclination towards good through the Scarlet Letter. The characters like Hester Prynne, Dimmesdale, Chillingworth and even the community are the specific examples. Despite the fact that good and evil coexist in human nature, human beings are liable to be strongly affected and controlled by the striving towards good.展开更多
The key advantage of unmanned swarm operation is its autonomous cooperation. How to improve the proportion of cooperators is one of the key issues of autonomous collaboration in unmanned swarm operations. This work pr...The key advantage of unmanned swarm operation is its autonomous cooperation. How to improve the proportion of cooperators is one of the key issues of autonomous collaboration in unmanned swarm operations. This work proposes a strategy dominance mechanism of autonomous collaboration in unmanned swarm within the framework of public goods game. It starts with the requirement analysis of autonomous collaboration in unmanned swarm;and an aspiration-driven multiplayer evolutionary game model is established based on the requirement. Then the average abundance function and strategy dominance condition of the model are constructed by theoretical derivation. Furthermore, the evolutionary mechanism of parameter adjustment in swarm cooperation is revealed via simulation,and the influences of the multiplication factor r, aspiration levelα, threshold m and other parameters on the strategy dominance conditions were simulated for both linear and threshold public goods games(PGGs) to determine the strategy dominance characteristics;Finally, deliberate proposals are suggested to provide a meaningful exploration in the actual control of unmanned swarm cooperation.展开更多
In current China, the main problem existing in the rural public goods supplying system is the unbalanced condition of public goods supply, and the chief reason for which is unitary system of supply main body. Thus the...In current China, the main problem existing in the rural public goods supplying system is the unbalanced condition of public goods supply, and the chief reason for which is unitary system of supply main body. Thus the leading countermeasure for comer of public goods supply is to reform the present unitary rural public goods supplying system, to strengthen functional transfer of rural grass-roots directive organization, to adopt diversified mode and provide public goods on the base of overall planning of urban and rural areas and to implement unitary and diversified supplying strategy. In this way, supplying efficiency of the rural public goods will be improved.展开更多
To increase the provision of rural public goods is a major task of Chinese new rural construction, while it can not do without the necessary supervision. This paper described the relationship between public choice the...To increase the provision of rural public goods is a major task of Chinese new rural construction, while it can not do without the necessary supervision. This paper described the relationship between public choice theory and the provision of rural public goods and it was a basis for in-depth study of the government＇s subject behavior from the perspective of public choice, and led to the necessity of regulation of rural public goods provision in rural areas, then it presented a strengthen monitoring of the rationalization proposals.展开更多
The experience of the mankind in studying the planet of our own, is long and the progress is accelerated. From the numerous geographic adventures organized in the past thousand years came only the brief knowledge of t...The experience of the mankind in studying the planet of our own, is long and the progress is accelerated. From the numerous geographic adventures organized in the past thousand years came only the brief knowledge of the outline of the land and ocean; with the scientific explorations and topographic mapping activities done in the 300-plus years that followed, only about 30% of the land got mapped. But things have been changed greatly since the beginning of the century, when the air planes were put into use for mapping: up to 1950’s, the mapped areas had gone up to 70%; From 1957, a series of resource and environment satellites have been launched one after another,observing the globe, giving coverage of it and providing endlessly varieties of information about the seas and the lands day and night.展开更多
This paper discusses methods for governing the global good. It holds that justice for both people and non-human creatures requires a change at the foundations of our view of life. What is needed is not only a few more...This paper discusses methods for governing the global good. It holds that justice for both people and non-human creatures requires a change at the foundations of our view of life. What is needed is not only a few more government regulations or a little more international cooperation based on the unquestioned presupposition of the priority of national sovereignty and economic growth,but also a different perspective on our responsibilities for the wellbeing of the commons, recognizing that increasingly the environmental commons is global in scope and requires some transnational means of governance. It also holds that a"responsibilities"approach calls for the greening of all kinds of responsibility and not only those of national governments and international organizations.展开更多
基金supported by the National Natural Science Foundation of China (No. 62073267)。
文摘As a crucial process in the coordinated strikes of unmanned aerial vehicles(UAVs), weapon-target assignment is vital for optimizing the allocation of available weapons and effectively exploiting the capabilities of UAVs. Existing weapon-target assignment methods primarily focus on macro cluster constraints while neglecting individual strategy updates. This paper proposes a novel weapon-target assignment method for UAVs based on the multi-strategy threshold public goods game(PGG). By analyzing the concept mapping between weapon-target assignment for UAVs and multi-strategy threshold PGG, a weapon-target assignment model for UAVs based on the multi-strategy threshold PGG is established, which is adaptively complemented by the diverse cooperation-defection strategy library and the utility function based on the threshold mechanism. Additionally, a multi-chain Markov is formulated to quantitatively describe the stochastic evolutionary dynamics, whose evolutionary stable distribution is theoretically derived through the development of a strategy update rule based on preference-based aspiration dynamic. Numerical simulation results validate the feasibility and effectiveness of the proposed method, and the impacts of selection intensity, preference degree and threshold on the evolutionary stable distribution are analyzed. Comparative simulations show that the proposed method outperforms GWO, DE, and NSGA-II, achieving 17.18% higher expected utility than NSGA-II and reducing evolutionary stable times by 25% in large-scale scenario.
文摘Good综合征（ Good syndrome, GS）是一种罕见的合并胸腺瘤的成人原发性免疫缺陷病，典型特征为低丙种球蛋白血症、免疫缺陷合并胸腺瘤，该病老年人高发，无性别差异，占胸腺瘤患者的10％，其发病机制尚不明确。主要临床表现为自身免疫性疾病合并反复机会性感染，特别是含荚膜细菌的感染，肺部为最常受累部位。郑州大学第一附属医院收治以顽固性腹泻为首诊的典型GS一例，现报道如下。
文摘Nathaniel Hawthorne not only strongly condemns the belief that men are more evil than good, but also conveys the inclination towards good through the Scarlet Letter. The characters like Hester Prynne, Dimmesdale, Chillingworth and even the community are the specific examples. Despite the fact that good and evil coexist in human nature, human beings are liable to be strongly affected and controlled by the striving towards good.
基金supported by the National Natural Science Foundation of China(71901217)the National Key R&D Program of China(2018YFC0806900).
文摘The key advantage of unmanned swarm operation is its autonomous cooperation. How to improve the proportion of cooperators is one of the key issues of autonomous collaboration in unmanned swarm operations. This work proposes a strategy dominance mechanism of autonomous collaboration in unmanned swarm within the framework of public goods game. It starts with the requirement analysis of autonomous collaboration in unmanned swarm;and an aspiration-driven multiplayer evolutionary game model is established based on the requirement. Then the average abundance function and strategy dominance condition of the model are constructed by theoretical derivation. Furthermore, the evolutionary mechanism of parameter adjustment in swarm cooperation is revealed via simulation,and the influences of the multiplication factor r, aspiration levelα, threshold m and other parameters on the strategy dominance conditions were simulated for both linear and threshold public goods games(PGGs) to determine the strategy dominance characteristics;Finally, deliberate proposals are suggested to provide a meaningful exploration in the actual control of unmanned swarm cooperation.
文摘In current China, the main problem existing in the rural public goods supplying system is the unbalanced condition of public goods supply, and the chief reason for which is unitary system of supply main body. Thus the leading countermeasure for comer of public goods supply is to reform the present unitary rural public goods supplying system, to strengthen functional transfer of rural grass-roots directive organization, to adopt diversified mode and provide public goods on the base of overall planning of urban and rural areas and to implement unitary and diversified supplying strategy. In this way, supplying efficiency of the rural public goods will be improved.
文摘To increase the provision of rural public goods is a major task of Chinese new rural construction, while it can not do without the necessary supervision. This paper described the relationship between public choice theory and the provision of rural public goods and it was a basis for in-depth study of the government＇s subject behavior from the perspective of public choice, and led to the necessity of regulation of rural public goods provision in rural areas, then it presented a strengthen monitoring of the rationalization proposals.
文摘The experience of the mankind in studying the planet of our own, is long and the progress is accelerated. From the numerous geographic adventures organized in the past thousand years came only the brief knowledge of the outline of the land and ocean; with the scientific explorations and topographic mapping activities done in the 300-plus years that followed, only about 30% of the land got mapped. But things have been changed greatly since the beginning of the century, when the air planes were put into use for mapping: up to 1950’s, the mapped areas had gone up to 70%; From 1957, a series of resource and environment satellites have been launched one after another,observing the globe, giving coverage of it and providing endlessly varieties of information about the seas and the lands day and night.
文摘This paper discusses methods for governing the global good. It holds that justice for both people and non-human creatures requires a change at the foundations of our view of life. What is needed is not only a few more government regulations or a little more international cooperation based on the unquestioned presupposition of the priority of national sovereignty and economic growth,but also a different perspective on our responsibilities for the wellbeing of the commons, recognizing that increasingly the environmental commons is global in scope and requires some transnational means of governance. It also holds that a"responsibilities"approach calls for the greening of all kinds of responsibility and not only those of national governments and international organizations.
