Elastic control could balance the distributed control plane in Software-Defined Networking(SDN). Dynamic switch migration has been proposed to achieve it. However, existing schemes mainly focus on how to execute migra...Elastic control could balance the distributed control plane in Software-Defined Networking(SDN). Dynamic switch migration has been proposed to achieve it. However, existing schemes mainly focus on how to execute migration operation, but not why. This paper designs a decision-making mechanism based on zero-sum game theory to reelect a new controller as the master for migrated switches. It first chooses a switch for migration in the heavy controller which invites its neighbors as the game players to compete for the master role of this switch in the game-playing field(GPF) which is an occasional and loose domain for game-playing. Second, based on the concept of GPF, we design a decentralized strategy to play the game and determine which player as the final master. We implement it by extending the Open Flow protocol. Finally, numerical results demonstrate that our distributed strategy can approach elastic control plane with better performance.展开更多
This study is conducted on the special provision of the Korean government to prevent youths＇ addiction to online games. Judging that the youths＇ addiction to online games is serious, the Korea government made a lega...This study is conducted on the special provision of the Korean government to prevent youths＇ addiction to online games. Judging that the youths＇ addiction to online games is serious, the Korea government made a legal provision to control the phenomena of youths＇ online game addiction. At that time, there were lots of conflicting opinions in the course of implementation of the related governmental act. The purpose of this study is investigating what conflicting opinions there were in the course of the legislation and also the fundamental cause of the opinion confliction and the countermeasures thereby. Especially, it is noteworthy that two departments of the government had different legal approaches toward the issue. Thus, this study will present an affordable suggestion for other countries which have youths＇ online game addiction problems.展开更多
The main goal of this paper is to examine the economic relations of the Republic of Congo in its bilateral cooperation with China and to see its real implications in the Congolese economy. In other words, this paper i...The main goal of this paper is to examine the economic relations of the Republic of Congo in its bilateral cooperation with China and to see its real implications in the Congolese economy. In other words, this paper is going to highlight the real status of the Republic of Congo in the recent intensification of cooperation with the Middle Kingdom. Indeed, China has always been criticized as a predator of African raw materials by its opponents （traditional partners of Africa）. Thus, in the Congolese context, the authors try to analyze and see whether this cooperation has corroborated that anti-thesis or not. After examining various facets of Chinese interventions in Congo, the authors conclude that： The cooperation between these two countries is a kind of cooperation for the modernization and industrialization of the Congo, which is now developing in a satisfactory way. It brings real benefits to people of both countries, and it is also welcomed by both of them. Congo and China are bound by a traditional friendship, they have cooperated with each other since 1964, and both countries must be determined to further strengthen this cooperation to achieve a common development. It should also be noted that China is first and foremost a strategic partner of development for the Congo because of the positive results recorded by its actions in different areas of its operations in that country. The authors have also noted some pitfalls and have made some suggestions accordingly, in order to enhance the performance of cooperation between the two countries. It is particularly in terms of the transfer of technology, compliance with the regulations in force in Congo by Chinese enterprises, the adjustments made by China concerning the training of Congolese students who receive scholarships from the Chinese government for their training in China and on Chinese language, and finally the area of diversification of production, it is worth pointing out that the Congo only exports its main raw materials to China, such as oil and wood, and moreover, those materials are exported in the raw state, thus reducing the incentives of diversification of its domestic production. The data used in this article cover the periods from 1995 to 2005, which are inadequate for this work, given the momentum taken by the development of cooperation between the two countries. Then, for future researchers, they have to refine the work concerning the next state of Sino-African cooperation.展开更多
基金supported by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(Grant No.61521003)the National Basic Research Program of China(2012CB315901,2013CB329104)+2 种基金the National Natural Science Foundation of China(Grant No.61372121,61309020,61309019)the National High-Tech Research&Development Program of China(Grant No.2013AA013505)the National Science and Technology Support Program Project(Grant No.2014BAH30B01)
文摘Elastic control could balance the distributed control plane in Software-Defined Networking(SDN). Dynamic switch migration has been proposed to achieve it. However, existing schemes mainly focus on how to execute migration operation, but not why. This paper designs a decision-making mechanism based on zero-sum game theory to reelect a new controller as the master for migrated switches. It first chooses a switch for migration in the heavy controller which invites its neighbors as the game players to compete for the master role of this switch in the game-playing field(GPF) which is an occasional and loose domain for game-playing. Second, based on the concept of GPF, we design a decentralized strategy to play the game and determine which player as the final master. We implement it by extending the Open Flow protocol. Finally, numerical results demonstrate that our distributed strategy can approach elastic control plane with better performance.
文摘This study is conducted on the special provision of the Korean government to prevent youths＇ addiction to online games. Judging that the youths＇ addiction to online games is serious, the Korea government made a legal provision to control the phenomena of youths＇ online game addiction. At that time, there were lots of conflicting opinions in the course of implementation of the related governmental act. The purpose of this study is investigating what conflicting opinions there were in the course of the legislation and also the fundamental cause of the opinion confliction and the countermeasures thereby. Especially, it is noteworthy that two departments of the government had different legal approaches toward the issue. Thus, this study will present an affordable suggestion for other countries which have youths＇ online game addiction problems.
文摘The main goal of this paper is to examine the economic relations of the Republic of Congo in its bilateral cooperation with China and to see its real implications in the Congolese economy. In other words, this paper is going to highlight the real status of the Republic of Congo in the recent intensification of cooperation with the Middle Kingdom. Indeed, China has always been criticized as a predator of African raw materials by its opponents （traditional partners of Africa）. Thus, in the Congolese context, the authors try to analyze and see whether this cooperation has corroborated that anti-thesis or not. After examining various facets of Chinese interventions in Congo, the authors conclude that： The cooperation between these two countries is a kind of cooperation for the modernization and industrialization of the Congo, which is now developing in a satisfactory way. It brings real benefits to people of both countries, and it is also welcomed by both of them. Congo and China are bound by a traditional friendship, they have cooperated with each other since 1964, and both countries must be determined to further strengthen this cooperation to achieve a common development. It should also be noted that China is first and foremost a strategic partner of development for the Congo because of the positive results recorded by its actions in different areas of its operations in that country. The authors have also noted some pitfalls and have made some suggestions accordingly, in order to enhance the performance of cooperation between the two countries. It is particularly in terms of the transfer of technology, compliance with the regulations in force in Congo by Chinese enterprises, the adjustments made by China concerning the training of Congolese students who receive scholarships from the Chinese government for their training in China and on Chinese language, and finally the area of diversification of production, it is worth pointing out that the Congo only exports its main raw materials to China, such as oil and wood, and moreover, those materials are exported in the raw state, thus reducing the incentives of diversification of its domestic production. The data used in this article cover the periods from 1995 to 2005, which are inadequate for this work, given the momentum taken by the development of cooperation between the two countries. Then, for future researchers, they have to refine the work concerning the next state of Sino-African cooperation.
