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New LMI Conditions for Reduced-order Observer of Lipschitz Discrete-time Systems: Numerical and Experimental Results

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International Journal of Automation and computing 2019年第5期16卷 644-654页

作者： Noussaiba gasmi Assem Thabet Mohamed Aoun Research Center for Automatic Control of Nancy CRAN-CNRS UMR 7039University of LorraineCosnes et Romain 54400France Modeling Analysis and Control of Systems(MACS)LaboratoryNational Engineering School of GabesUniversity of GabesGabes 6072Tunisia

The objective of this paper is to propose a reduced-order observer for a class of Lipschitz nonlinear discrete-time *** conditions that guarantee the existence of this observer are presented in the form of linear matrix inequalities(LMIs). To handle the Lipschitz nonlinearities, the Lipschitz condition and the Young′s relation are adequately operated to add more degrees of freedom to the proposed LMI. Necessary and sufficient conditions for the existence of the unbiased reduced-order observer are given. An extension to H_∞ performance analysis is considered in order to deal with H_∞ asymptotic stability of the estimation error in the presence of disturbances that affect the state of the system. To highlight the effectiveness of the proposed design methodology, three numerical examples are considered. Then, high performances are shown through real time implementation using the ARDUINO MEGA 2560 device.

关键词： Reduced-order observer discrete-time systems Lipschitz systems H_∞ ARDUINO MEGA 2560 device

Prediction of Uncertainty Estimation and Confidence Calibration Using Fully Convolutional Neural Network

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Computers, Materials & Continua 2023年第5期75卷 2557-2573页

作者： Karim gasmi Lassaad Ben Ammar Hmoud Elshammari Fadwa Yahya Department of Computer Science College of Arts and Sciences at TabarjalJouf UniversityJoufSaudi Arabia College of Sciences and Humanities Prince Sattam Bin Abdulaziz UniversityAl-KharjSaudi Arabia University of Sfax SfaxTunisia Department of Information Systems College of Computer and Information SciencesJouf UniversityJoufSaudi Arabia

Convolution neural networks(CNNs)have proven to be effective clinical *** study highlighted some of the key issues within these *** is difficult to train these systems in a limited clinical image databases,and many publications present strategies including such learning ***,these patterns are known formaking a highly reliable *** addition,normalization of volume and losses of dice have been used effectively to accelerate and stabilize the ***,these systems are improperly regulated,resulting in more confident ratings for correct and incorrect classification,which are inaccurate and difficult to *** study examines the risk assessment of Fully Convolutional Neural Networks(FCNNs)for clinical image *** contributions have been made to this planned work:1)dice loss and cross-entropy loss are compared on the basis of segment quality and uncertain assessment of FCNNs;2)proposal for a group model for assurance measurement of full convolutional neural networks trained with dice loss and group normalization;And 3)the ability of the measured FCNs to evaluate the segment quality of the structures and to identify test examples outside the *** evaluate the study’s contributions,it conducted a series of tests in three clinical image division applications such as heart,brain and *** findings of the study provide significant insights into the predictive ambiguity assessment and a practical strategies for outside-distribution identification and reliable measurement in the clinical image *** approaches presented in this research significantly enhance the reliability and accuracy rating of CNNbased clinical imaging methods.

关键词： Medical image segmentation confidence calibration uncertainty estimation fully convolutional neural network

Usability-Driven Mobile Application Development

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Computer Systems Science & Engineering 2023年第6期45卷 3165-3180页

作者： Fadwa Yahya Lassaad Ben Ammar gasmi Karim Prince Sattam Bin Abdulaziz University AlkharjSaudi Arabia University of Sfax SfaxTunisia Department of Computer Sciences Faculty of Sciences and Arts in TABARJALJouf UniversityKingdom of Saudi Arabia

Recently,a specific interest is being taken in the development of mobile application(app)via Model-Based User Interface Development(MBUID)*** allows the generation of mobile apps in the target platform(s)from conceptual *** such it simplified the development process of mobile ***,the interest is only focused on the functional aspects of the mobile app while neglecting the non-functional aspects,such as *** latter is largely considered as the main factor leading to the success or failure of any software *** paper aims at addressing non-functional aspects of mobile apps generated using MBUID *** such,we propose a usability-driven approach for the development of mobile *** main stages of the proposed approach are defined in a generic way so that they can be integrated with any MBUID method.A case study is presented,in the paper,with the aim of illustrating the feasibility of this approach.

关键词： Mobile application user interface model-based user interface development mobile usability

Identity Dilemma and the Lack of Reciprocity in Diana Abu-Jaber's Crescent

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Journal of Foreign Languages and Cultures 2020年第2期4卷 114-121页

作者： Fatima Zohra gasmi Bo Cao University of 8 Mai 1945 Hunan Normal University

Diana Abu-Jaber's Crescent astutely interweaves the search for identity into a romantic love *** article approaches it using a new identity concept found in Amin MaaUmrs work In the Name of Identity:Violence and the Need to Belong(Les identitSs meurtrieres).It investigates the identity dilemma that the female protagonist,Sirine,faces while living in-between her conflicting Arab and American *** argues that her struggle is amplified by the lack of what Maalouf calls“reciprocity.”Sirine finds it too difficult to assimilate into the mainstream Arab *** around her do not accept her,and she reacts by upholding her Arab *** article maintains that even small acts of reciprocity can reduce her identity dilemma.

关键词： Diana Abu-Jaber Crescent Amin Maalouf Identity Reciprocity

Cost proxy models and telecommunications policy : a new empirical approach to regulation /

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Robust Decentralized Sliding Mode Control for Large Scale Uncertain Systems

丛书名： Regulation of economic activity

2002年

作者： gasmi Farid.

来源：畅想之星图书光盘版（南... 评论

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Small ruminant value chain in Al-Ruwaished District,Jordan

第二十六届中国控制会议

作者： Mnasri Chaouki gasmi Moncef Unité de Recherche en Automatique et Informatique Industrielle (URAII) Tunisia Institut Supérieur des Etudes Technologiques de Gafsa Tunisia Institut National des Sciences Appliquées et de Technologie Tunisia

ISBN: (纸本)9787811240559

To design a decentralized sliding mode control for uncertain interconnected systems,two approaches are presented in this *** first one exploits the use of the common sliding mode strategy of design to simplify the structure of the con- troller and to give useful results after the reaching phase,while the second takes advantage of a particular sliding surface to give good results starting from any initial *** implementation of the proposed decentralized sliding mode control- lers,through a two coupled inverted pendulums model,shows their validity.

关键词： Uncertain large scale systems decentralized classic sliding mode control decentralized full-order sliding mode control reaching condition double inverted pendulums

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Regional Sustainability 2023年第4期4卷 416-424页

作者： Rula AWAD Hosam TITI Aziza MOHAMED-BRAHMI Mohamed JAOUAD Aziza gasmi-BOUBAKER Department of Animal Production National Agronomic Institute of TunisiaCarthage UniversityTunis1082Tunisia Department of Animal Production Faculty of Agriculturethe University of JordanAmman999045Jordan Higher School of Agriculture of Kef Laboratory for the Sustainability of Production Systems in the North-West RegionUniversity of JendoubaKef7119Tunisia Institute of Arid Regions Médenine Laboratory of Economy and Rural SocietiesMédenine4119Tunisia

This study aims to assess the small ruminant value chain in Al-Ruwaished District,Jordan,to identify the potential intervention areas that could improve the production efficiency and guarantee the sustainability of the small ruminant sector in this *** breeding is the source of livelihood for most of the people in Al-Ruwaished District,which is characterized by the large number of sheep and *** surveyed 5.0% of the small ruminant holders in the study area and conducted individual interviews and surveys with the potential actors in the value chain to undertake a small ruminant value chain *** the survey,we found that the small ruminant value chain consists of five core functions,namely,input supply,production management,marketing,processing,and *** the stable impression given by the large number of holdings in the small ruminant sector,the surveyed results show a clear fragility in the value chain of small ruminants in this *** small ruminant production system is negatively impacted by climate change,especially continuous *** addition,the high prices of feed that the farmer cannot afford with clear and real absence of the governmental and non-governmental support activities also impact the development of the value *** results of strengths,weaknesses,opportunities,and threats(SWOT)analysis reveal that the major constraints faced by this value chain could be divided into external and internal ***,the most prominent external threats are the nature of the desert land and continuous drought,while the major internal threats are the absence of appropriate infrastructure,shortage of inputs,and weakness in the production management and *** proposed solutions to these challenges to ensure the sustainability and effectiveness of the sector,such as the formulation of emergency response plans to severe weather,qualifying farmers’skills,and establishment of agricultural cooperative societies.

关键词： Value chain analysis Small ruminants Strengths,weaknesses,opportunities,and threats(SWOT)analysis Climate change Livestock production management Jordan

Parameter Estimations for Some Modifications of the Weibull Distribution

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Open Journal of Statistics 2014年第8期4卷 597-610页

作者： Soumaya Ghnimi Soufiane gasmi Faculty of Sciences of Tunis University of Tunis El Manar Tunis Tunisia Tunis National Higher School of Engineering University of Tunis Tunis Tunisia

Proposed by the Swedish engineer and mathematician Ernst Hjalmar Waloddi Weibull (1887-1979), the Weibull distribution is a probability distribution that is widely used to model lifetime data. Because of its flexibility, some modifications of the Weibull distribution have been made from several researches in order to best adjust the non-monotonic shapes. This paper gives a study on the performance of two specific modifications of the Weibull distribution which are the exponentiated Weibull distribution and the additive Weibull distribution.

关键词： Exponentiated Weibull Distribution Additive Weibull Distribution Maximum Likelihood Estimation Kolmogorov-Smirnov Test Simulation

Direct Adaptive Fuzzy Based Backstepping Control of Semi Strict Feedback Nonlinear Systems

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Computer Technology and Application 2011年第11期2卷 884-892页

作者： Raoudha Ben Khaled Chaouki Mnasri Moncef gasmi Department of Electrical Engineering ISI Ariana Tunisia Department of Electronics Engineering ISSAT Mateur Tunisia Department of Physics and Instrumentation INSA T Tunis Tunisia Unit~ de Recherche en Automatique et Informatique Industrielle （URAII） INSAT Universite de Carthage Tunsia

In this paper, a direct adaptive fuzzy tracking control is proposed for a class of uncertain single-input single-output nonlinear semi-strict feedback systems. Based on Takagi-Sugeno type fuzzy systems, a direct adaptive fuzzy tracking controller is developed by using the backstepping approach. The main advantage of the developed method is that for an n-th order system, only one parameter is needed to be adjusted online. It is proven that, under the appropriate assumptions, the developed scheme can achieve that the output system converges to a small neighborhood of the reference signal and all the signals in the closed-loop system remain bounded. The efficacy of the proposed algorithm is investigated by an illustrative simulation example of one link robot.

关键词： Direct adaptive fuzzy control perturbed nonlinear systems strict feedback form backstepping design output tracking