The amalgamation of Cloud computing and Internet-of-Things (IoT), i.e., Cloud-of-Things (CoT), has emerged as one of the indispensable technologies in the IT and business world. The success of CoT depends on theeffic...
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Cellular traffic prediction is crucial to the network efficiency as it provides prior knowledge to guide the wireless resource allocation. The artificial intelligence (AI) based traffic prediction can provide better p...
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Due to the inherited coupling between d channel and q channel, the decoupling control is often introduced into the control of three phasegrid-connected inverter (GCI) in dq-frame. Therein, the system's fundamenta...
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ISBN:
(纸本)9781665453837
Due to the inherited coupling between d channel and q channel, the decoupling control is often introduced into the control of three phasegrid-connected inverter (GCI) in dq-frame. Therein, the system's fundamental frequency needs to be adopted in the decoupling control. The published literature often uses the nominal frequency.1 or theestimated *** via a Phase-Locked Loop (PLL). However, it has not yet been revealed what is different between employing.1 *** for the decoupling control. In this article, a detailed discussion of the decoupling control with the two frequencies, i. e.,.1 ***, is provided. Initially, the small-signal impedance models of GCI considering the decoupling control with.1 *** are proposed. Afterward, the comparisons of the system's stability and decoupling precision with these two frequencies are given. The results demonstrate that 1) Frequency measurement accuracy has little impact on the system. 2) The control precision is approximately equal in the quasi-steady-state using the two decoupling frequencies even in the scenarios of frequency deviation (+/- 2Hz). 3) The system will be unstable *** is utilized, and then a lower PLL bandwidth should be adopted. Lastly, the theoretical analysis is verified by simulation results.
The aim of this paper is to present a novel cov-RBM model on the basis of Restricted Boltzmann Machine (RBM) and the coefficient of variation (CoV), where the learning process is instructed by the CoV eigenvalues with...
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Present Information Technology scenario is engulfed with exponential rise in mobilecomputing devices mostly embedded in diverseequipments of our daily life. This has led to evolutionary demand of new solutions to mo...
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Target detection is a popular direction in computer vision and digital image processing. It is widely used in robot navigation, intelligent video surveillance, industrial detection, aerospace, and many other fields. I...
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When addressing the challenges of an excessively large solution space and the difficulties in channel attention mechanisms to restore texture details during the generation of High-Resolution (HR) images from Low-Resol...
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This study looks into the impact of mobile coding apps on autonomous learning among tertiary students through a cross-sectional survey. Analyzing data from 377 students, primarily from the BS Information Technology pr...
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作者:
Tan, DiFang, XiaohanFan, YuanAnhui University
Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education School of Electrical Engineering and Automation Hefei230601 China
Community microgrid is a kind of new power system that acts as an intermediary between community consumers and thegrid, playing an important role in realising distributed autonomy and improving the power supply level...
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Cloud computing assumes a crucial role in the internet applications and services landscape, serving as the default infrastructure for deploying and delivering web applications. To harness the cloud's technical and...
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ISBN:
(纸本)9798350325430
Cloud computing assumes a crucial role in the internet applications and services landscape, serving as the default infrastructure for deploying and delivering web applications. To harness the cloud's technical and financial benefits, one must address the challenges of the increased consequences of software faults. Online failure prediction has emerged as a solution allowing for actions to be taken before the failures. However, conventionally, each target application requires a specific online failure predictor to be trained from application-specific data, which is impractical. In this paper weexplore and assess the possibility to achieve online failure prediction for cloud applications from infrastructure-level data, i.e., data from the hypervisor. For this purpose, we present a method to accomplish this type of failure prediction, through fault injection on the hypervisor and machine learning techniques to create failure prediction models. From our experiments we find that it is possible to predict application failures from low-level infrastructural data, i.e., the infrastructure data presented enough application failure predictive power (with an accuracy of 96%, precision of 95% and a recall of 64%), showing the great potential that infrastructural data has to contribute to this task. Additionally, our study also opens interesting future research directions, such as multilevel failure prediction or generic failure prediction models.
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