采用问卷法对1401名青少年进行调查研究,考察了同伴侵害对青少年问题性网络游戏使用(Problematic online game use,POGU)的影响,同时考察了学业自我效能感在其中的中介作用,以及该过程是否受到父母知情的调节。结果发现:(1)在控制了性...采用问卷法对1401名青少年进行调查研究,考察了同伴侵害对青少年问题性网络游戏使用(Problematic online game use,POGU)的影响,同时考察了学业自我效能感在其中的中介作用,以及该过程是否受到父母知情的调节。结果发现:(1)在控制了性别、年龄和家庭社会经济地位(SES)后,同伴侵害仍可显著正向预测青少年POGU;(2)同伴侵害不仅可以直接正向预测青少年POGU,还可以通过影响学业自我效能感进而间接预测青少年POGU;(3)父母知情显著调节同伴侵害影响青少年POGU的直接效应,较高的父母知情可以缓冲同伴侵害的负面效应;(4)父母知情显著调节中介模型的后半段(学业自我效能感→POGU),即低水平的父母知情放大了低学业自我效能感对青少年POGU的风险效应。展开更多
In this paper, a Stackelberg differential game based approach is proposed to solve the bandwidth allocation problems in satellite communication network. All the satellites are divided into two groups, one has high dow...In this paper, a Stackelberg differential game based approach is proposed to solve the bandwidth allocation problems in satellite communication network. All the satellites are divided into two groups, one has high download requirements, and the other one has low download requirements. Each satellites group has its own controller for bandwidth allocation, and can get payments from the satellites for the allocated resources. The relationships between the controllers and satellites are formed as a Stackelberg game. In our model, differential equation is introduced to describe the bandwidth dynamics for the whole satellite communication network. Combine the differential equation and Stackelberg game together, we can formulate the bandwidth allocation problems in satellite communication network as a Stackelber differential game. The solutions to the proposed game is solved based the Bellman dynamic equations. Numerical simulations are given to prove the effeteness and correctness of the proposed approach.展开更多
This paper investigates the channel diversity problem in high frequency(HF) communication systems. Due to the limited HF spectrum resources, a HF communication system with shared channels is considered, where each use...This paper investigates the channel diversity problem in high frequency(HF) communication systems. Due to the limited HF spectrum resources, a HF communication system with shared channels is considered, where each user equipment(UE) has individual communication demand. In order to maximize the communication probability of the whole system, a matching-potential game framework is designed. In detail, the channel diversity problem is decomposed into two sub-problems. One is channel-transmitter matching problem, which can be formulated as a many-to-one matching game. The other is the transmitter allocation problem which decides the transmission object that each transmitter communicates with under channel-transmitter matching result, and this sub-problem can be modeled as a potential game. A multiple round stable matching algorithm(MRSMA) is proposed, which obtains a stable matching result for the first sub-problem, and a distributed BR-based transmitter allocation algorithm(DBRTAA) is designed to reach Nash Equilibrium(NE) of the second sub-problem. Simulation results verify the effectiveness and superiority of the proposed method.展开更多
Out of concern over nuclear weapons proliferation,the worry over DPRK nuclear testing is overwrought.The author sees the situation from the viewpoint of a geopolitical game in a non-proliferation mask.To attempt a geo...Out of concern over nuclear weapons proliferation,the worry over DPRK nuclear testing is overwrought.The author sees the situation from the viewpoint of a geopolitical game in a non-proliferation mask.To attempt a geopolitical game using non-proliferation is wrongly directed,but this is the main reason the issue fluctuates and deadlocks occasionally.To solve the situation once and for all,the international community needs to recognize its geopolitical nature and cure the problem accordingly.Since DPRK leader Kim Jong-Un crossed the border April 27 to meet South Korean President Moon Jae-in,the destiny of the Korean Peninsula is,as it should be,in the hands of the Koreans,not Chinese or Americans.展开更多
This paper focuses on the energy efficient relay selection problem in a cooperative multi-relay network,aims to find the most energy efficient relay node for the source node while ensuring its minimum data rate requir...This paper focuses on the energy efficient relay selection problem in a cooperative multi-relay network,aims to find the most energy efficient relay node for the source node while ensuring its minimum data rate requirement.The interaction between the source node and the relay nodes is modeled as a Vickrey auction game,when the source node broadcasts a cooperation request,the relay nodes compete for the cooperation,and the one with the minimum bid will be chosen which denotes the cost of the source node during the cooperation process,but it only needs to provide the minimum bid provided by the other relay nodes,which can encourage all the relay nodes to give the true bid.Besides,the minimum rate requirement of the source node will be ensured and the relay node taking part in the cooperation will gain some reward and the reward can be maximized by reinforcement learning(RL).展开更多
文摘采用问卷法对1401名青少年进行调查研究,考察了同伴侵害对青少年问题性网络游戏使用(Problematic online game use,POGU)的影响,同时考察了学业自我效能感在其中的中介作用,以及该过程是否受到父母知情的调节。结果发现:(1)在控制了性别、年龄和家庭社会经济地位(SES)后,同伴侵害仍可显著正向预测青少年POGU;(2)同伴侵害不仅可以直接正向预测青少年POGU,还可以通过影响学业自我效能感进而间接预测青少年POGU;(3)父母知情显著调节同伴侵害影响青少年POGU的直接效应,较高的父母知情可以缓冲同伴侵害的负面效应;(4)父母知情显著调节中介模型的后半段(学业自我效能感→POGU),即低水平的父母知情放大了低学业自我效能感对青少年POGU的风险效应。
基金supported by National Science Foundation Project of P. R. China (No. 61501026, U1603116)
文摘In this paper, a Stackelberg differential game based approach is proposed to solve the bandwidth allocation problems in satellite communication network. All the satellites are divided into two groups, one has high download requirements, and the other one has low download requirements. Each satellites group has its own controller for bandwidth allocation, and can get payments from the satellites for the allocated resources. The relationships between the controllers and satellites are formed as a Stackelberg game. In our model, differential equation is introduced to describe the bandwidth dynamics for the whole satellite communication network. Combine the differential equation and Stackelberg game together, we can formulate the bandwidth allocation problems in satellite communication network as a Stackelber differential game. The solutions to the proposed game is solved based the Bellman dynamic equations. Numerical simulations are given to prove the effeteness and correctness of the proposed approach.
基金supported by the Natural Science Foundation for Distinguished Young Scholars of Jiangsu Province under Grant No. BK20160034in part by the National Natural Science Foundation of China under Grant No. 61671473 and No. 61631020in part by the Open Research Foundation of Science and Technology on Communication Networks Laboratory
文摘This paper investigates the channel diversity problem in high frequency(HF) communication systems. Due to the limited HF spectrum resources, a HF communication system with shared channels is considered, where each user equipment(UE) has individual communication demand. In order to maximize the communication probability of the whole system, a matching-potential game framework is designed. In detail, the channel diversity problem is decomposed into two sub-problems. One is channel-transmitter matching problem, which can be formulated as a many-to-one matching game. The other is the transmitter allocation problem which decides the transmission object that each transmitter communicates with under channel-transmitter matching result, and this sub-problem can be modeled as a potential game. A multiple round stable matching algorithm(MRSMA) is proposed, which obtains a stable matching result for the first sub-problem, and a distributed BR-based transmitter allocation algorithm(DBRTAA) is designed to reach Nash Equilibrium(NE) of the second sub-problem. Simulation results verify the effectiveness and superiority of the proposed method.
基金funded by the Fundamental Research Funds for the Central Universities of the University of International Relations(project No.3262016T01)
文摘Out of concern over nuclear weapons proliferation,the worry over DPRK nuclear testing is overwrought.The author sees the situation from the viewpoint of a geopolitical game in a non-proliferation mask.To attempt a geopolitical game using non-proliferation is wrongly directed,but this is the main reason the issue fluctuates and deadlocks occasionally.To solve the situation once and for all,the international community needs to recognize its geopolitical nature and cure the problem accordingly.Since DPRK leader Kim Jong-Un crossed the border April 27 to meet South Korean President Moon Jae-in,the destiny of the Korean Peninsula is,as it should be,in the hands of the Koreans,not Chinese or Americans.
基金Supported by the National Natural Science Foundation of China(No.61271182)the National Science Foundation for Young Scientists of China(No.61001115)the Research Fund for the Doctoral Program of Higher Education of China(No.20120005120010)
文摘This paper focuses on the energy efficient relay selection problem in a cooperative multi-relay network,aims to find the most energy efficient relay node for the source node while ensuring its minimum data rate requirement.The interaction between the source node and the relay nodes is modeled as a Vickrey auction game,when the source node broadcasts a cooperation request,the relay nodes compete for the cooperation,and the one with the minimum bid will be chosen which denotes the cost of the source node during the cooperation process,but it only needs to provide the minimum bid provided by the other relay nodes,which can encourage all the relay nodes to give the true bid.Besides,the minimum rate requirement of the source node will be ensured and the relay node taking part in the cooperation will gain some reward and the reward can be maximized by reinforcement learning(RL).