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As a general approach to gain electronic trust in business-to-consumer e-commerce, the customers select valid brands based on the authenticity of the Web and regulatory mechanisms in order to facilitate purchase decision process. This approach is not suitable for purchase from small companies without brands active in e-commerce. To purchase from these companies, we should follow other e-trust approaches...
This paper investigates reliable answers to the following proposed research questions: Will changing course contents and difficulty levels affect the achievement of course intended learning outcomes and the levels of students' success? Detailed analyses and findings of a proposed course assessment framework that primarily uses direct assessment techniques are presented. Two online courses are compared,...
The increasing penetration of variable and uncertain generation from renewable resources poses a challenge for balancing the power system supply and demand. Violations of this constraint seriously impact system reliability and thus carry with them a very high cost. In order to address the issues created by variable generation increased system flexibility is required. System operators are considering...
The early theoretical studies that presented conceptual definitions for the mapping of Quality of Experience (QoE) through Quality of Service (QoS), in an approach focused on Distributed Databases (DDBs), showed the directions to be threshed in a way to accomplish a hybrid DDBs' QoE-QoS set of evaluation criteria. That evaluation set being classified explicitly as partial, since QoE is a known multidimensional...
This paper discusses a composition problem of a resilient tree on a graph modeling a communication network whose links are intermittent. The resiliency of a tree is defined exploiting the binary relation on two kinds of edge weights: availability and commonality. Availability represents a probabilistic stability of a communication link corresponding to an edge, and commonality indicates the influence...
Enterprise Resource Planning (ERF) systems are sophisticated information database that provide an automatic cross-functional business processes. An ERP user, however, often encounters challenges using complex ERP interfaces. Educational ERP implementation has been plagued with failure, but it to be adopted and is expanding in Indian higher education. An AICTE, UGC and others government approving bodies...
Computer networks serve as critical infrastructure to services in business, health care, and education. Targeted attacks and random failures may cause link or node removals, which in turn can cause significant disruption to the availability of network services. Designing a network topology to provide acceptable levels of service in the face of these challenges can save both lives and money. A number...
As the availability of open-source information online increases, there are growing concerns regarding its reliability. This has led to renewed emphasis in quality-and trust-metrics research within the social computing space, to assist individuals in determining how reliable pieces of information actually might be. In this article, we take a step back to rigorously investigate the utility of trustworthiness...
Based on the vector similarity theory, a new method of node importance ranking is proposed in this paper. The paper introduces four typical evaluation index of the node importance and points out their common faults. And the basic theory and steps of the vector similarity are discusses in detail. Finally, an example shows that the effectiveness and practicality of this method by the comparison of node...
Computer platform games are an innovative measure to improve the strategic abilities of the player. However due to the repetitive nature of game levels, the players lack interest. Procedural Content Generation (PCG) is a technique to overcome such issues. PCG generates endless and adaptive levels but most of the PCG techniques have catastrophic failures that make the game unplayable. The focus of...
In this paper we stress that currently available test systems were developed by making major assumptions at the time when this was realistic to do. These test systems are only building blocks of a much larger puzzle that needs to be simulated and tested in the changing electric energy industry. It is practically impossible to integrate several test systems once developed in a stand-alone way into...
The reliability of service is related to the kind and the number of service resources in grid. The kind and the number of service resources often change, so the service reliability is variable. In this paper, we propose a reliability measurement model for service in grid, which is based on the dynamic characteristic of service resource. In this model, the dynamic state of service is divided into a...
This paper presents a real-time electro-thermal simulation system which is a novel method of estimating the junction temperatures of power semiconductors. It calculates the junction temperatures of the power semiconductors in real time. The load current and the output voltage of an actual power conversion system are detected to calculate the instantaneous power loss. The detected output voltage is...
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