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The problem of privacy-preserving data mining has become more and more important in recent years. Many successful and efficient techniques have been developed. However, in collaborative data analysis, part of the datasets may come from different data owners and may be processed using different data distortion methods. Thus, combinations of datasets processed using different methods are of practical...
Along with the emergence and development of new applications of network which is represented by P2P network, existing network traffic identification methods do not respond to the environment of network traffic which cannot be identified efficiently and accurately. In order to meet the needs of network traffic, the method of network traffic identification based on support vector machine (SVM) is proposed...
Cloud computing is another buzzword and the latest effort after Web 2.0. It is a technology that access remote servers through Internet to maintain data and applications. Whilst cloud computing developes into a major trend in IT industry, academic research has recently joined. This paper compared existing definitions of cloud computing and gave personal opinion. The case of mainstream cloud computing...
With the growth of supercomputer's scale, the communication time during executing is increasing. This phenomenon arouses the architecture researchers' interests. In this paper, based on the fat-tree topology, which is widely used in Infiniband, we present an one-to-all broadcast communication time model. After classifying applications into two kinds, we establish the ideal model and the bandwidth-limited...
In real applications, information systems may vary with time due to different reasons. Approximations of a concept under variable precision rough sets (VPRS) will change when an information system changes. Usually, incremental updating methods are an effective way to maintenance knowledge in a dynamic environment. Algorithms for incremental updating approximations are proposed in this paper when objects...
With the fast development of World Wide Web, Web-based applications and services should allow user to get the right personalized information quickly and effectively. Collaborative Filtering acts a very important role in web service personalization and Recommender System. In this paper, Stability Degree was proposed to improve the accuracy of collaboration filtering both based on item and user, kinds...
The growing popularity of the World Wide Web is placing tremendous demands on the Internet. The world wide can be considered as a large distributed information system that provides access to shared data objects. As one of the most popular applications currently running on the Internet, the World Wide Web is of an exponential growth in size, which results in network congestion and server overloading...
WWW is an open and distribute environment, which contains a lot of information, it helps the user to get information from the network through the using of ontology. There are lots of ontology with different version on the WWW, and it can achieve interoperate and reusing between ontology by reference relationship. For the WWW is increasing rapidly and the Web ontology has the independent character,...
The exploration on XML mapping to relational database system has become one of the most important focus in present days due to the role of XML as the channel to transport data over the world wide web. The mapping schemes have effects towards the efficiency of XML processing in terms of database scalability, storage pace into database systems and types of information stored in the database. In this...
In view of existing shortcomings and deficiencies in accessing the traditional distributed database, a new distributed database framework based on mobile agent is put forward, which represents agent distribution and the workflow of each agent in detail. Finally the distributed database system is designed and implemented by the use of agent technology in producing data gathering management application...
With the purpose of applying Cloud Computing to university library, the paper firstly described Cloud Computing and analyzed the current status of user service models in university libraries. Then it proposed to improve current user service model with Cloud Computing. And at last the author put forward the bright prospect of user service models based on Cloud Computing.
Net neutrality has caused a raging concern about Internet's open, accessible and innovative features. This paper summarizes the concept and origination of net neutrality, as well as the typical opinions of the proponents and opponents on net neutrality. It takes Comcast as an example, analyses the reason and measurement that Internet Service Providers (ISPs) enforced discriminatory access and blocking...
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