In consideration of the limitation of super-peer overlay network, the semantic information was introduced into the super-peers＇ organization. A novel P2P （peer-to-peer） searching model, SSP2P, was put forward. The ...In consideration of the limitation of super-peer overlay network, the semantic information was introduced into the super-peers＇ organization. A novel P2P （peer-to-peer） searching model, SSP2P, was put forward. The peers in the model were organized in a natural area autonomy system （AAS） based on the smallworld theory. A super-peer was selected in each AAS based on power law; and all the super-peers formed different super-peer semantic networks. Thus, a hierarchical super-peer overlay network was formed. The results show that the model reduces the communication cost and enhances the search efficiency while ensuring the system expansibility. It proves that the introduction of semantic information in the construction of a super-peer overlay is favorable to P2P system capability.展开更多
Montmartre Jazz House in Copenhagen became one of the most famous venues in Europe. This paper describes its history,, from the first concert performed by the American jazz musician George Lewis and His New Orleans Or...Montmartre Jazz House in Copenhagen became one of the most famous venues in Europe. This paper describes its history,, from the first concert performed by the American jazz musician George Lewis and His New Orleans Orchestra to the turbulent and economical difficult years in the 1970＇s when the owner, Herluf Kamp-Larsen, had to declare himself bankrupt. A couple of Danish jazz musicians, trumpet player Palle Mikkelborg （1941-） and pianist Ole Kock Hansen （1945-）, explain the importance of the venue, and some of the most legendary jazz musicians that were hired during the clubs history are mentioned. The paper is based upon the author＇s book upon the venue and gives a survey of the history of Montmartre Jazz House. The research for the book includes lots of concert reviews, interviews with many musicians, members of the staff and Herluf Kamp-Larsen, and besides, the writer had access to the archive of the jazz house.展开更多
CHINA will propose the inscription of karst landscapes in Wulong County （Chongqing Municipality）, Libo County （Guizhou Province） and Shilin City （Yunnan Province） on the prestigious World Heritage List during th...CHINA will propose the inscription of karst landscapes in Wulong County （Chongqing Municipality）, Libo County （Guizhou Province） and Shilin City （Yunnan Province） on the prestigious World Heritage List during the 31st UNESCO World Heritage Comittee session in Christchurch, New Zealand, from June 23 to July 2.展开更多
基金The National Natural Science Foundation of China(No.60573127), Specialized Research Fund for the Doctoral Program of Higher Education (No.20040533036).
文摘In consideration of the limitation of super-peer overlay network, the semantic information was introduced into the super-peers＇ organization. A novel P2P （peer-to-peer） searching model, SSP2P, was put forward. The peers in the model were organized in a natural area autonomy system （AAS） based on the smallworld theory. A super-peer was selected in each AAS based on power law; and all the super-peers formed different super-peer semantic networks. Thus, a hierarchical super-peer overlay network was formed. The results show that the model reduces the communication cost and enhances the search efficiency while ensuring the system expansibility. It proves that the introduction of semantic information in the construction of a super-peer overlay is favorable to P2P system capability.
文摘Montmartre Jazz House in Copenhagen became one of the most famous venues in Europe. This paper describes its history,, from the first concert performed by the American jazz musician George Lewis and His New Orleans Orchestra to the turbulent and economical difficult years in the 1970＇s when the owner, Herluf Kamp-Larsen, had to declare himself bankrupt. A couple of Danish jazz musicians, trumpet player Palle Mikkelborg （1941-） and pianist Ole Kock Hansen （1945-）, explain the importance of the venue, and some of the most legendary jazz musicians that were hired during the clubs history are mentioned. The paper is based upon the author＇s book upon the venue and gives a survey of the history of Montmartre Jazz House. The research for the book includes lots of concert reviews, interviews with many musicians, members of the staff and Herluf Kamp-Larsen, and besides, the writer had access to the archive of the jazz house.
文摘CHINA will propose the inscription of karst landscapes in Wulong County （Chongqing Municipality）, Libo County （Guizhou Province） and Shilin City （Yunnan Province） on the prestigious World Heritage List during the 31st UNESCO World Heritage Comittee session in Christchurch, New Zealand, from June 23 to July 2.
