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Virtual connections in packet switched networks is increasing faster, in particular over the Internet, using MPLS and GMPLS evolution has produced a significant amount of studies on traffic engineering protocols, especially with regard to the different ways to provide quality of service over connections. This article presents a model to characterize the reliability of these types of networks, in computing...
With rapid development of internet, more and more consumers choose to shop from different channels, such as offline channel and online channel. Some consumers prefer shopping through offline channel because they want to experience the products' quality in person, while other consumers would like to shop online because they care more about the efficiency of shopping. There are several factors that...
Modeling based approach is described for analyzing and evaluating Internet server system reliability and availability in this paper. In the given model the states are defined by the different kinds of failures of the server system. The Markov model evaluates the probability of jumping from one known state into the next logical state. The probabilities between transitions of the states are a function...
High reliability is always pursued by network designers. Multipath routing can provide multiple paths for transmission and failover, and is considered to be effective in the improvement of the network reliability. However, existing multipath routing algorithms focus on how to find as many paths as possible, rather than their computation or communication overhead.
High schools have rapidly adapted computers in their administration, management and academy. School management uses papers and computers as tools to store the administrative and management data. However computers are not used to analyze data and output information. Therefore, e-School Management System (e-SMS) is developed to facilitate teaching and administration staffs to manage school activities...
As audiovisual communications services become the dominant traffic source in the Future Internet, their stable coexistence and their fairness towards background traffic is an active research topic. The Internet implements flow multiplexing in a decentralized fashion via congestion control. Audiovisual media streams, however, are classified as inelastic traffic flows that do not allow rate control...
Virtual community members' strong interactivity makes community information become an important factor that influence consumer decision-making. Based on the definition and dimensions of virtual community interactive content characteristics, we made an empirical research on the interactive content characteristics of C2C virtual community and its influence on users' network purchasing. The results show...
An analytical model for multihomed BGP networks is developed which calculates the probabilities of all network states assuming independent link failures. Contrary to previous models, the focus is not only on network reliability in terms of maintaining connectivity, but rather on the network's Quality of Service (QoS) and its ability to meet a certain Service Level Agreement (SLA). Therefore, reliability...
This study investigates information cascades in knowledge sharing behavior in virtual communities. A research framework based on the social cognitive theory is developed to identify factors that would influence information cascades in knowledge sharing behavior in virtual communities. Structural Equation Modeling (SEM) is employed to test the hypotheses empirically. A survey involving a total of 213...
Employing survey method on internet consumer, this article finds internet consumer's participation, especially behaviorally and affectively, significantly affects electronic service perceived quality. However, personality participation, another important factor, doesn't fit our data set and has no significant impact on perceived quality.
Supervisory Control and Data Acquisition (SCADA) systems control and monitor industrial and critical infrastructure functions, such as electricity, gas, water, waste, railway and traffic. Recently, SCADA systems have been targeted by an increasing number of attacks from the Internet due to its grow- ing connectivity to Enterprise networks. Traditional techniques and models of identifying attacks,...
This paper, based on the literature review and the trust theory, makes an empirical investigation and analysis in the context of today's internet and e-commerce in China. It researches influencing factor of the online public praise relating to behavior patterns about participants on the virtual platform in the case of different types of commodities. Experimental results show that the communicator's...
This paper focused on the building of customer loyalty model. Structural equation model has shown that both product satisfaction and service satisfaction have positive effects on customer satisfaction; the latter one also has a positive effect on customer loyalty. Then this paper analyzed the reasons of insignificant effects of product satisfaction and customer satisfaction on customer loyalty. Last,...
With the rapid development of internet, virtual community has become the most import knowledge sharing platform. And this study investigates the inter-relationships among virtual community culture, group cohesion and knowledge sharing. Based on 185 questionnaires from Chinese netizens in professional virtual community, this paper implements a structural equation model to test the research framework...
Web site usability works have been mainly descriptive and lack a marketing perspective. For this reason, we find necessary to focus the attention on this aspects and its effects on consumer trust and satisfaction. By mean of empirical analyses, such as structural equation models, partial least squares technique and t-tests methodologies it is confirmed the impact of usability on satisfaction and consumer...
In this paper, we present a new technique to improve the reliability of H-tree SRAM memories. This technique deals with the SRAM power-bus monitoring by using built-in current sensor (BICS) circuits that detect abnormal current dissipation in the memory power-bus. This abnormal current is the result of a single-event upset (SEU) in the memory and it is generated during the inversion of the state of...
In this paper, we introduce and evaluate ScaleMesh, a scalable miniaturized dual-radio wireless mesh testbed based on IEEE 802.11b/g technology- ScaleMesh can emulate large-scale mesh networks within a miniaturized experimentation area by adaptively shrinking the transmission range of mesh nodes by means of variable signal attenuators. To this end, we derive a theoretical formula for approximating...
Robustness against geometric distortion is one of the most important problems in image authentication. In this paper, an image watermarking algorithm robust to geometric transformations is proposed. Radon transformation is used to detect and invert geometric transformations, and a perceptual hash feature detector is proposed to extract significant feature points, finally compares features from two...
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