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Sheet music has long been regarded as one of the most effective medias for musicians, music players, and amateurs to communicate with each other. It is also an intuitive way for non-professionals to learn how to play a musical instrument or sing a song. However, not all composers have willingness to share their own sheet music, especially those protected by strict copyright regulations. For amateurs...
This paper aims at the main problem of existing online teaching platform about lack of interaction and explores the construction and application of the SPOC (Small Private Online Course) online learning platform. The design and implementation of the SPOC platform based on Tencent Cloud are introduced from the technical level. On this basis, teaching practice and exploration in SPOC mode including...
To understand security vulnerabilities of communication protocols used in power systems, a real-time framework can be developed to conduct vulnerability studies. The framework should implement protection mechanisms against vulnerabilities and study their effectiveness. In this paper, a realtime cyber-physical framework or test bed is presented. It integrates a real-time power system simulator and...
Multimedia Content Delivery Networks (CDN) is used to improve the performance and reliability on Internet. In CDN architecture, the multimedia contents are replicated from the origin server to replica servers in order to improve the performance and minimize the use of network bandwidth. Efficient placing the multimedia contents in CDN is a challenging problem. There are five factors that can be used...
This paper introduces the main technologies of software code protection for .NET, and analyzes their advantages and disadvantages. On the basis of analyzing new demands of .NET software protection, we point out the necessarily and possibility of the trend from code protection to software licensing protection. Then a cloud licensing protection model for .NET software combining code protection with...
Remote Data Checking (RDC) allows clients to efficiently check the integrity of data stored at untrusted servers. This allows data owners to assess the risk of outsourcing data in the cloud, making RDC a valuable tool for data auditing. A robust RDC scheme incorporates mechanisms to mitigate arbitrary amounts of data corruption. In particular, protection against small corruptions (i.e., bytes or even...
Network GIS has a bright future, and gradually becomes the mainstream of GIS applications. ArcGlS Server is ESRI's enterprise-class GIS platform, it can be used to publish a variety of standard Web Services, and create many network GIS applications. Based on the in-depth analysis of ArcGIS Server system construction, this paper summarizes the general process of creating network geographic information...
The technology of multimedia Content Delivery Network (CDN) is to build some replica servers in the network. The origin server replicates some multimedia contents to these replica servers in order to reduce the loading of the origin server and to reduce the utilization of bandwidth. The client issues a request to the most appropriate replica server instead of the origin server, which can provide the...
Grid resource monitoring system should take charge of watching a large amount of heterogeneous resources and their usage state. The paper analyzes the disadvantages of the current grid resource monitoring framework, then proposes a new monitoring model GMF-BMA and discusses the communication among middle layer, infrastructure layer and sensor layer in details. A prototype implementation of the model...
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