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.
Products sold with lifetime warranties are well liked by the customer as this type of warranties secure a prolonged reliable operational or useful life, and act as a shield for the customer against inferior quality as well as the potential high repair costs during indefinite life of consumable product. Under such policies, the customer are exposed to risks of costs and product reliability as products...
Recently, the dynamic Reliability Block Diagram (DRBD) with the characteristics of intuitiveness and visibility has been extensively employed in industrial fields, such as aerospace, military facilities, nuclear energy and chemical industry, etc. However, there exists a limitation in the past research that the complexity of the reliability calculation considering the additional modelling constructs,...
Models are commonly used in software testing to select test suites. Application of mutation testing at a model level can contribute to reliable and early assessment of the quality of the test suites. It can also support selection of test suites achieving high fault detection rates. The main issue related to using mutation testing at the early development stage is to determine how reliably the quality...
Wireless Sensor Networks (WSNs) equipped with directional communication and sensing devices provide a high level of tunability needed in optimizing their performance in critical applications. Such devices and nodes, however, remain prone to failure when operating in the field. In this paper we formalize a problem, called directional breach path detection reliability (DIR-BPDREL), that quantifies the...
Distributed Generation (DG) is the generation of electricity from multiple renewable energy sources and is located closer to the user, or load. These days DGs is developing rapidly because of the advantages it could bring into the system such as enhancing the transmission efficiency, securing distribution reliability as well as reduction of climate change. However, the penetration of DGs to the existing...
Despite several decades of research into 3D segmentation techniques and a diversity of methods and approaches proposed in the literature, comparing and evaluating the quality of this segmentation method is still a challenging task to achieve. In this paper, an objective evaluation metric suitable for evaluation of 3D segmentation quality and based on the Ochiai index, is proposed to enrich the stat...
Performing statistical inference on massive data sets may not be computationally feasible using the conventional statistical inference methodology. In particular, there is a need for methods that are scalable to large volume and variability of data. Moreover, veracity of the inference is crucial. Hence, there is a need to produce quantitative information on the statistical correctness of parameter...
We investigate unreliable computation problem under cost and fidelity constraints. We introduce a framework, where we observe a noise-corrupted version of correct computation while incurring an associated cost. We consider several cost models formalizing the relationship between fidelity of an unreliable computation and its cost. We demonstrate that a single unreliable computation incurs less cost...
Cloud Computing was growing so fast today. The services are Infrastructure as a Service (IaaS), Software as a Service (SaaS), and Platform as a Service (PaaS). This development of cloud computing align with the development of computer in this new age which turn people to work mobile and faster. Cloud computing could be one of the new tools in supporting learning process for students in Higher Education...
Cloud computing is a computing paradigm which has the potential to speed up Information Technology adoption among SMEs in developing economies like India. The user friendly, pay per use cloud computing model offers SMEs access to highly scalable and reliable cloud infrastructure without having to invest on buying and maintaining expensive Information Technology resources. However, moving data and...
This paper presents a semi-analytical simulation which combines analytical model and Monte Carlo technique to simulate the operation of discrete production lines. The purpose is to rapidly evaluate the availability for lines with unreliable machines and finite buffers in the design phase. Firstly, description of production line and availability definition are exhibited. Then, an output and inventory...
We present a resilient task-based domain-decomposition preconditioner for partial differential equations (PDEs) built on top of User Level Fault Mitigation Message Passing Interface (ULFM-MPI). The algorithm reformulates the PDE as a sampling problem, followed by a robust regression-based solution update that is resilient to silent data corruptions (SDCs). We adopt a server-client model where all...
Soft errors are increasing in modern computers. These faults can corrupt the results of scientific simulations. This work studies error propagation by a bit flip in conjugate gradient (CG) methods. We will also introduce adaptivity to selective reliable fault-tolerant (SRFT) solvers. Our study reduces the compute-intensive reliability steps in SRFT solvers.
Information and Communication Technology (ICT) has changed the world scenario including business and economies. There are new opportunities and challenges for every country to produce knowledge oriented citizens. Driven by these changes, numerous higher education institutions around the world are integrating and adopting latest ICT tools to deliver quality education. However, the Effectiveness of...
A distributed system is considered that carries out computational tasks according to the master-worker paradigm. A master has a set of computational tasks to resolve. She assigns each task to a set of workers over the Internet, instead of computing the task locally. For each task each worker reply to the master with the task result. Since the task was not computed locally, the master can not trust...
The effectiveness of robot interaction depends on the robot's ability to perform task-relevant actions and on the degree to which it is able to predict the outcomes of these actions. In this paper we argue that the two learning problems - learning actions and learning forward models - must be tightly coupled for each of them to be successful. We present an approach that is able to learn a set of continuous...
Recently, with the advent of Internet of things, mobile devices are expected to carry on more and more computation-intensive applications, and mobile cloud computing also comes in to help mitigate the burden of mobile devices. However, due to the rapidly growing density of mobile devices, the current single cloud environment will still encounter resource depletion, which will lead to application offloading...
Minimization of operating costs is one of the most important objectives of power system operators. To achieve this goal, several optimization problems such as unit commitment and optimal power flow have been introduced. Historically, in these problems, the transmission network has been considered as a static system, i.e., the ability of transmission lines switching is not modeled. On the other hand,...
In order to efficiently predict electricity consumption, we need to improve both the speed and the reliability of computational environment. Concerning the speed, we use in-memory database, which is taught to be the best solution that allows manipulating data many times faster than the hard disk.
This article applied the methodology proposed for the study of mechanical and thermal processes occurring in the receiver-computer units (RCU) for unmanned aerial vehicles (UAV). This method provides for a mechanical and thermal simulation in two stages by means of subsystems ASONIKA-T, ASONIKA-M-3D (for the study unit with the construction of thermal and mechanical macro models) and ASONIKA-TM (for...
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.