The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
With the rapid development of world's information service industry, e-commerce has become the central focus for many international companies and transnational enterprises across the world. China's e-commerce has already turned into one of major forms of expanding business activities in today's rapid development. Using e-commerce enterprises can not only reduce transaction cost and raise transactional...
Materialized view technology is widely used in XML databases. With the increasing of the number of views in database, it is inevitably to encounter the storage problem. In an attempt to solve this problem, this paper proposes a lazy materialized view concept and implements a lazy materialized view based on B/S model. This lazy materialized view can effectively reduce the storage space required for...
With the rapid development of multimedia technology and computer network technology, and the popularization of the Internet, digital media has gradually become the primary means of information exchange, such as images, audio, video. People can easily get a variety of digital information from the Internet. Because digital information can easily be illegally copied and manipulated, the current infringement...
To satisfy users in specific area, topic-specific Web crawler is becoming more and more popular in the Web data mining and searching with Internet growing exponentially. Meanwhile, a few peer-to-peer based Web search engines are proposed to cope with problems like single point of failure of current centralized architecture crawlers. Relevance of topic has been deeply studied while selection of starting...
Network coordinate (NC) system is an efficient and scalable system for Internet distance prediction. In this paper, we propose 3 two-layer NC systems HNPS, HBBS and HIDES derived from NPS, BBS and IDES, respectively. We use hierarchical idea in both Euclidean coordinate systems (NPS and BBS) and matrix factorization model (IDES). And to the best of our knowledge, we first introduce the thought of...
Mechanisms to extract the characteristics of network traffic play a significant role in the traffic monitoring, offering helpful information for network management and control. In this paper, a method based on random matrix theory (RMT) and principal components analysis (PCA) is proposed for monitoring and analyzing large scale traffic pattern of Internet. Besides the analysis of the largest eigenvalue...
Monitoring traffic pattern is always an important approach to improve the performance of computer networks. In recent years, peer-to-peer (P2P) service gradually dominates the Internet traffic against traditional client-server (C-S) service such as Web. The changed situation of networks is mainly in two aspects. One is that popular P2P file-sharing applications require both board downstream and upstream...
A complex system, an industrialized process that invariably involves multiple factors, such as environmental management, human relationship and equipment may result in hazard event. However, the analytical hierarchy process(AHP), provides a methodology for multi-criteria analysis and decision making, can offer decision making support technique to help people prevent the hazard event from taking place...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.