2012
analysis in interconnected networks lan F Akyildiz and JOrg Liebeherr demonstrate the effect of finite buffers of gateways and NAUs on network performance The performance of interconnected networks is highly dependent on the performance of the gateways. Since the finite storage capability of gateways affects the throughput it has to be considered for the analysis of interconnected networks. Different configurations of networks are studied: 6) gateways and the channels of local area networks have no buffer capacity constraints; (ii) only gateways have buffer capacity constraints; (iii) only the channels of local area networks have buffer capacity constraints; (iv) both gateways and the channels of the local area networks have buffer capacity constraints, (iv)both gateways and the channels of the local area networks have buffer capacity constraints. An approximation method is introduced which allows computation of the throughput for the above network configurations. Examples are given to demonstrate the impact of gateway buffer capacity on the performance of the network. Approximate results are compared and validated by simulation.
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Florin Enache · RePEc: Research Papers in Economics
The correlation between an employee and their organization is an essential factor in understanding human resource planning, employee performance evaluation, and career plans. Harmonization is needed in the key stages of their careers in order to improve employee and organizational needs in an effective manner. In an organization, employees do not merely work for it, they are the organization, correctly evaluating the employees’ performance influences the organization’s objectives and stability, no less than organizational culture. The employees and mid-level management should not be regarded as “masses”, or usable “tools”, but minds that have to be reunited for the organization’s benefit. The literature in Romania46 highlights the concept of performance; its management addresses an employee’s career in general, hence the theoretical concepts, without profoundly studying their career at all levels.
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Gheith A. Abandah, Edward S. Davidson · 1996
The objective of this paper is to develop models that characterize the memory and communication performance of shared-memory multiprocessors which is crucial for developing efficient parallel applications for them. The Convex SPP–1000, a modern scalable distributed-memory multiprocessor that supports the shared-memory programming paradigm, is used throughout as a case study. The paper evaluates and models four aspects of SPP–1000 performance: scheduling, local-memory, shared-memory, and synchronization. Our evaluation and modeling are intended to supply useful information for application and compiler development. 1
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Alexander Arnfinn Olsen · Springer series on naval architecture, marine engineering, shipbuilding and shipping/Springer series on naval architecture, marine engineering, shipbuildung and shipping · 2024
Cited by 7
Nashmia Khalid (20496403), Sadaf Hina (20496406), Khurram Shabih Zaidi (20496409) et al. · Figshare · 2025
<div><p>The widespread use of wireless networks to transfer an enormous amount of sensitive information has caused a plethora of vulnerabilities and privacy issues. The management frames, particularly authentication and association frames, are vulnerable to cyberattacks and it is a significant concern. Existing research in Wi-Fi attack detection focused on obtaining high detection accuracy while neglecting modern traffic and attack scenarios such as key reinstallation or unauthorized decryption attacks. This study proposed a novel approach using the AWID 3 dataset for cyberattack detection. The retained features were analyzed to assess their transferability, creating a lightweight and cost-effective model. A decision tree with a recursive feature elimination method was implemented for the extraction of the reduced features subset, and an additional feature wlan_radio.signal_dbm was used in combination with the extracted feature subset. Several deep learning and machine learning models were implemented, where DT and CNN achieved promising classification results. Further, feature transferability and generalizability were evaluated, and their detection performance was analyzed across different network versions where CNN outperformed other classification models. The practical implications of this research are crucial for the secure automation of wireless intrusion detection frameworks and tools in personal and enterprise paradigms.</p></div>
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Jingshu Wang (309223), Qingyuan Zhao (4765449), Jack Bowden (3452474) et al. · Figshare · 2021
<p><b>a</b>, Estimation of <i>β</i> across selection p-value thresholds under no pleiotropy. Error bars show 95% Confidence intervals and the numbers are the number of independent SNPs obtained at each threshold. <b>b</b>, Estimation of <i>β</i> across three non-overlapping categories of SNPs: “strong”, “moderate” and “weak”. The numbers are the number of SNPs in each category. <b>c</b>, Identifying causal directions by multi-modality with MR reversely performed. The selection p-value threshold is kept at 10<sup>−4</sup>. <b>d</b>, three modes detected in the profile likelihood with selection p-value threshold 10<sup>−4</sup> for CRP on CAD. Marker genes and GWAS traits (in parenthesis) are shown for each mode. <b>e</b>, estimation of the CRP effect <i>β</i> at different p-value selection threshold with each method. The numbers are the estimated , with * indicating p-value below 0.05 and ** indicating p-value below 0.01.</p>
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Kishore B. Pamadi · 2013
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Naval Civil, Engineering Lab, Port Hujeneme Ca et al. · 2016
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DONATIELLO, LORENZO · Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna)
Performance Evaluation functions as a leading journal in the area of modeling, measurement, and evaluation of performance aspects of computing and communication systems.
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Susanta Deb · Leadership & Organization Development Journal · 1981
When we say “performance” evaluation, we all usually assume what we are talking about. But when we begin to discuss the subject, we often find we are not all dealing with the same thing. There is another side of the problem also — according to a survey of the Bureau of National Affairs, 93 per cent of the firms have performance evaluation programs; yet, only 10 per cent of the personnel executives of those firms felt that their evaluation programs were effective. Perhaps, the reason is due to the fact that performance evaluation is, indeed, not a single technique; rather, it is a term used for a variety of techniques by which superiors, peers, juniors and the individual employees themselves rate, rank, or describe the employees' work effectiveness. The evaluations may be global, but such evaluations tend to be much influenced by a few important factors. More commonly, a number of specific dimensions of behaviour are assessed. This article attempts to provide a factor approach to performance evaluation in an organization.
Cited by 6
Youcef Touati, Arab Ali-Chérif, Boubaker Daâchi · Elsevier eBooks · 2017
Cited by 1
Stephen R. Kimbleton · 1971
Computer systems are expensive in terms of development, acquisition and maintenance. The efficient and effective system appears to be the exception rather than the rule. Concern for system improvement is voiced by almost every computer-related management or technical support group. The types and amounts of data which can be gathered through hardware and software monitors appear to be ever increasing. A bewildering array of papers and proceedings are published every year and the problems of analyzing computer systems are described with loving detail.
Cited by 13Open access
2007
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Leszek Szczeciński, Alex Alvarado · 2014
This chapter describes different methods that can be used to evaluate the performance of bit-interleaved coded modulation (BICM) receivers. It focuses on bit-error probability (BEP), symbol-error probability (SEP), and word-error probability (WEP) as performance metrics, as these are often considered relevant in practical systems. The chapter reviews methods to evaluate the performance for uncoded transmission. By uncoded transmission it is meant that the channel coding is absent (or is ignored), and thus, the decision on the transmitted symbols is made without taking into account the sequence of symbols. The chapter studies the performance of decoders (i.e., coded transmission). It analyzes the pairwise-error probability (PEP), which appears as the key quantity when evaluating coded transmission. The chapter also studies the performance of BICM based on the Gaussian approximations of the probability density function (PDF) of the L-values.
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Washington State University Extension · Research Exchange (Washington State University) · 2017
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W. Bux, DONATIELLO, LORENZO · Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) · 2004
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Hussain Mehboob · Journal of Electrical Systems · 2025
Fuel oil is a primary source used by the research stations located at Antarctica. However, shipping fuel oil to this remote region is costly and harms the environment. Due to global warming, it has become a necessity to implement green energy technologies. Due to the nonlinear nature of PV cells and their dependence on solar irradiation and temperature, obtaining maximum power is a challenge. The system must be optimized to obtain the maximum power using Power Electronics. One way of achieving this is called Maximum Power Point Tracking (MPPT). Our research evaluates the performance of conventional method, Perturb and Observe (P&O) based MPPT technique, with modern techniques, Artificial Neural Network (ANN) and Adaptive neuro-fuzzy inference system (ANFIS) based MPPT techniques. Simulations of the ANN, ANFIS and P&O algorithms were carried out using MATLAB-Simulink. The comparison between these controllers is made considering the partial shading and their performance at different temperatures at the leading solar sites and South pole. Results indicate that there is an improvement in MPP tracking for both ANN and ANFIS controllers as compared to the P&O algorithm with respect to the settling time, overshoot, oscillations and time to achieve MPP at both environments.
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Pierpaolo Ferrari · Contributions to finance and accounting · 2024
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Elsevier eBooks · 2006
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Ian Macdonald, Catherine Burke, Karl Stewart · 2024
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