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Enhancing Hyper-Spectral Image Classification with Reinforcement Learning and Advanced Multi-Objective Binary Grey Wolf Optimization

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Computers, Materials & Continua 2024年第6期79卷 3469-3493页

作者： Mehrdad Shoeibi Mohammad Mehdi Sharifi Nevisi reza salehi Diego Martín Zahra Halimi Sahba Baniasadi TheWPI Business School Worcester Polytechnic InstituteWorcesterMassachusetts01609-2280USA Department of Industrial Engineering Iran University of Science and TechnologyNarmakTehran16846-13114Iran ETSI de Telecomunicación Universidad Politécnica de MadridAv.Complutense 30Madrid28040Spain Department of Civil and Environmental Engineering University of MarylandCollege ParkMaryland20742USA Department of Industrial Engineering College of EngineeringUniversity of HoustonHoustonTexas77204USA

Hyperspectral(HS)image classification plays a crucial role in numerous areas including remote sensing(RS),agriculture,and the monitoring of the *** band selection in HS images is crucial for improving the efficiency and accuracy of image *** process involves selecting the most informative spectral bands,which leads to a reduction in data *** on these key bands also enhances the accuracy of classification algorithms,as redundant or irrelevant bands,which can introduce noise and lower model performance,are *** this paper,we propose an approach for HS image classification using deep Q learning(DQL)and a novel multi-objective binary grey wolf optimizer(MOBGWO).We investigate the MOBGWO for optimal band selection to further enhance the accuracy of HS image *** the suggested MOBGWO,a new sigmoid function is introduced as a transfer function to modify the wolves’*** primary objective of this classification is to reduce the number of bands while maximizing classification *** evaluate the effectiveness of our approach,we conducted experiments on publicly available HS image datasets,including Pavia University,Washington Mall,and Indian Pines *** compared the performance of our proposed method with several state-of-the-art deep learning(DL)and machine learning(ML)algorithms,including long short-term memory(LSTM),deep neural network(DNN),recurrent neural network(RNN),support vector machine(SVM),and random forest(RF).Our experimental results demonstrate that the Hybrid MOBGWO-DQL significantly improves classification accuracy compared to traditional optimization and DL ***-DQL shows greater accuracy in classifying most categories in both datasets *** the Indian Pine dataset,the MOBGWO-DQL architecture achieved a kappa coefficient(KC)of 97.68%and an overall accuracy(OA)of 94.32%.This was accompanied by the lowest root mean square error(RMSE)of 0.94,indicating very precise

关键词： Hyperspectral image classification reinforcement learning multi-objective binary grey wolf optimizer band selection

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A Deep Reinforcement Learning-Based Technique for Optimal Power Allocation in Multiple Access Communications

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Intelligent Automation & Soft Computing 2024年第1期39卷 93-108页

作者： Sepehr Soltani Ehsan Ghafourian reza salehi Diego Martín Milad Vahidi Department of Industrial Engineering College of EngineeringUniversity of HoustonHoustonTX77204USA Department of Computer Science Iowa State UniversityAmesIowaUSA ETSI de Telecomunicación Universidad Politécnica de MadridMadridSpain Faculty of School of Plant and Environmental Sciences Virginia Polytechnic Institute and StateUniversityBlacksburgVirginia24060USA

Formany years,researchers have explored power allocation(PA)algorithms driven bymodels in wireless networks where multiple-user communications with interference are ***,data-driven machine learning methods have become quite popular in analyzing wireless communication systems,which among them deep reinforcement learning(DRL)has a significant role in solving optimization issues under certain *** this purpose,in this paper,we investigate the PA problem in a k-user multiple access channels(MAC),where k transmitters(e.g.,mobile users)aim to send an independent message to a common receiver(e.g.,base station)through wireless *** this end,we first train the deep Q network(DQN)with a deep Q learning(DQL)algorithm over the simulation environment,utilizing offline ***,the DQN will be used with the real data in the online training method for the PA issue by maximizing the sumrate subjected to the source ***,the simulation results indicate that our proposedDQNmethod provides better performance in terms of the sumrate compared with the available DQL training approaches such as fractional programming(FP)and weighted minimum mean squared error(WMMSE).Additionally,by considering different user densities,we show that our proposed DQN outperforms benchmark algorithms,thereby,a good generalization ability is verified over wireless multi-user communication systems.

关键词： Deep reinforcement learning deep Q learning multiple access channel power allocation

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Ultra-thin broadband solar absorber based on stadium-shaped silicon nanowire arrays

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Frontiers of Optoelectronics 2022年第1期15卷 60-72页

作者： Seyedeh Leila Mortazavifar Mohammad reza salehi Mojtaba Shahraki Ebrahim Abiri Department of Electrical and Electronics Engineering Shiraz University of TechnologyModarres Blvd71557-13876 ShirazIran Faculty of Electrical and Electronics Engineering University of Sistan and BaluchestanDaneshgah Blvd98613-35856 ZahedanIran

This paper investigates how the dimensions and arrangements of stadium silicon nanowires(NWs)affect their absorption *** to other NWs,the structure proposed here has a simple geometry,while its absorption rate is compa-rable to that of very complex *** is shown that changing the cross-section of NW from circular(or rectangular)to a stadium shape leads to change in the position and the number of absorption modes of the *** a special case,these modes result in the maximum absorption inside *** method used in this paper to attain broadband absorption is utiliza-tion of multiple NWs which have different ***,the maximum enhancement is achieved using non-close packed *** structures can support more cavity modes,while NW scattering leads to broadening of the absorption *** the structures are optimized using particle swarm *** these optimized structures,it is viable to enhance the absorption by solar cells without introducing more absorbent materials.

关键词： Ultra-thin solar cells(SCs) Light trapping Stadium silicon nanowire(NW) Optical resonators Diffraction

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Effect of post-harvest UV-C irradiation and calcium chloride on enzymatic activity and decay of tomato(Lycopersicon esculentum L.)fruit during storage

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Journal of Integrative Agriculture 2017年第9期16卷 2093-2100页

作者： Saeideh Mansourbahmani Behzad Ghareyazie Sepideh Kalatejari reza salehi Mohammadi Vahid Zarinnia Department of Horticultural Sciences Science and Research BranchIslamic Azad UniversityTehran ***Iran Agriculture Biotechnology Research Institute of Iran(ABRII)/Agricultural Research Education and Extension Organization(AREEO)Karaj ***Iran Department of Horticultural Sciences University of TehranKaraj ***Iran

Tomato is one of the extensively consumed vegetable crops worldwide. The regular consumption of tomato decreases the incidence of chronic degenerative diseases such as certain types of cancer and cardiovascular diseases. The objective of this study was to find an appropriate method that not only reduces tomatoes decay, but also maintains its post-harvest quality. A factorial experiment based on randomized complete block design with three replications was conducted to evaluate effects of ultraviolet（UV）-C and CaCl_2 applications on tomato during storage. The traits studied included ethylene, polygalacturonase（PG） activity, pectin methyl esterase（PME） activity, firmness, total phenol content, and fungal-induced decay were measured weekly during 35 days of storage. Both UV-C and CaCl_2 treatments had positive effects on tomato quality as compared to control treatment. The 3 and 4.5 k J m^（-2） levels of UV-C and 2% CaCl_2 had positive effects on quality characteristics, respectivly. Fruits treated by UV-C and CaCl_2 had higher phenol and firmness, and less PME activity, PG activity, ethylene production, and decay than the control fruits. In conclusion, increasing in storage duration significantly affected the fruits quality by increasing in ethylene, PME activity, PG activity, decay and decreasing the phenol content and firmness. But UV-C and CaCl_2 led to significant decrease in this adverse impact relative to control treatment.

关键词： CaCl_2 ethylene production firmness PG PME phenol

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The information technology barriers in supply chain of sugarcane in Khuzestan province,Iran:A combined ANP-DEMATEL approach

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Information Processing in Agriculture 2021年第3期8卷 458-468页

作者： reza salehi Mohammad Ali Asaadi Mahmood Haji Rahimi Ali Mehrabi Department of Business Management Shahid Chamran University of AhvazAhvazIran Department of Agricultural Economics Engineering Faculty of AgricultureTarbiat Modares UniversityTehranIran Department of Agricultural Economics Engineering Faculty of AgricultureUniversity of KurdistanKurdistanIran

The present study aims at identifying and also prioritizing information technology barriers in supply chain of sugarcane in Khuzestan *** statistical population of the study consisted of all senior managers of sugarcane industries in the *** four large rel-evant companies in the field,34 senior managers were *** required data was col-lected through two stages hiring *** order to evaluate information technology barriers at the supply chain level,six main dimensions were considered includ-ing technological,supply chain management,strategic,organizational,individual and cus-tomer *** technique was also used to identify the relationship between indicators,and the ANP method was also employed to prioritize the before mentioned *** results of DEMATEL showed that strategic barrier indicator acts as the most influ-ential,and the supply chain management barrier indicator as the most impotent *** results of ANP method showed that of all research indicators,customer barrier indicator(weight 0.00127)was the most important ***,organizational and supply chain management barrier indicators are ranked second and third,***,among the 28 research components(sub-criteria),the“lack of financial support”component with the weight of 0.04821 ranked first,followed by“poor outsourcing management”and“high investment and installation costs”as second and third respectively,which also had the most impact on the sugarcane supply chain.

关键词： Information technology Supply chain management Sugarcane ANP DEMATEL

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Numerical investigation of particle separation in Y-shaped bifurcating microchannels

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Particuology 2021年第3期19卷 142-151页

作者： Mahya Meyari Zeinab salehi reza Zarghami Mahdi Saeedipour School of Chemical Engineering College of EngineeringUniversity of TehranTehranIran Department of Particulate Flow Modelling Johannes Kepler UniversityLinzAustria

In this study the Zweifach-Fung effect is investigated in a Y-shaped bifurcation when the clearance between the rigid spherical particle and the walls is small compared to both channel’s and particle’s ***-and two-particle systems are studied using resolved computational fluid dynamics coupled to discrete element method to obtain a two-dimensional map of the initially positioned particles that would enter each child *** all cases,the path selection of the sphere depends on its two-dimensional positioning far from the bifurcation region in the parent *** the flow rate ratio or decreasing the Reynolds number intensifies the Zweifach-Fung bifurcation effect in a single-particle ***,in two-particle systems where non-contact particle-particle interaction is present,decreasing the particle-to-particle distance reduces the bifurcation effect,while changing the Reynolds number has the same influence as in the single-particle *** results provide insight for optimizing the flow characteristics in bifurcating microchannels to separate the suspended particles.

关键词： Zweifach-Fung effect Bifurcation CFD-DEM MicrOfluidics Particle separation

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Association of risky driving behavior with psychiatric disorders among Iranian drivers:A case-control study

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中华创伤杂志:英文版 2023年第5期26卷 290-296页

作者： Kiana Khatami Yaser Sarikhani reza Fereidooni Mohammad salehi-Marzijarani Maryam Akabri Leila Khabir Arash Mani Mahsa Yaghikosh Afsaneh Haghdel Seyed Taghi Heydari Kamran Bagheri Lankarani Health Policy Research Center Institute of HealthShiraz University of Medical SciencesShirazIran Research Center for Social Determinants of Health Jahrom University of Medical SciencesJahromIran Research Center for Psychiatry and Behavioral Sciences Shiraz University of Medical SciencesShirazIran Department of Psychology Shiraz BranchIslamic Azad UniversityShirazIran

Purpose:This study aimed to investigate the possible association between psychological disorders and riskydriving behavior(RDB)in ***:This case-control study conducted in Shiraz,Iran in *** case group included drivers with psychological disorders and the control group included those without any *** inclusion criteria for selecting patients were:active driving at the time of the study,being 18-65 years old,having a driving license,having a psychological disorder including depression,bipolar disorder,anxiety spectrum disorder,or psychotic disorder spectrum confirmed by a psychiatrist,and completing an informed consent *** exclusion criterion was the existence of conditions that interfered with answering and understanding the *** inclusion criteria for selecting the healthy cases were:active driving at the time of the study,being 18-65 years old,having a driving license,lack of any past or present history of psychiatric problems,and completing an informed consent *** data were gathered using a researcher-made checklist and Manchester driving behavior ***,partition around medoids method was used to extract clusters of ***,backward logistic regression was applied to investigate the association between the independent variables and the clusters of ***:The sample comprised of 344(153 with psychological disorder and 191 without confirmed psychological disorder)*** elimination logistic regression on total data revealed that share of medical expenditure≤10%of total household expenditure(OR=3.27,95%Cl:1.48-7.24),psychological disorder(OR=3.08,95%Cl:1.67-5.70),and substance abuse class(OR=6.38,95%CI:3.55-11.48)wereassociatedwithhighlevelof ***:Substance abuse,psychological illnesses,and share of medical costs from total household expenditure were found to be main predictors of *** investigations are necessary to explain the impact of different psychological illnesses on driv

关键词： Risky driving behavior Psychological disorder Manchesterdriving behaviorquestionnaire Iran

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Issues in Eulerian-Lagrangian modeling of sediment transport under saltation regime

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International Journal of Sediment Research 2018年第4期33卷 441-461页

作者： reza Barati Seyed Ali Akbar salehi Neyshabouri Goodarz Ahmadi Faculty of Civil and Environmental Engineering Tarbiat Modares University Water Engineering Research Center Department of Civil Engineering Tarbiat Modares University Department of Mechanical and Aeronautical Engineering Clarkson University

The saltation regime is very important for understanding the sediment transport mechanism. However,there is no consensus on a model for the saltation regime. This study answers several questions raised with respect to the Eulerian-Lagrangian modeling of sediment transport. The first question is why the previous saltation models that use different combinations of hydrodynamic forces yielded acceptable results? The second question is which shear lift model(i.e. a shear lift expression and its coefficient) is more appropriate? Another important question is which hydrodynamic forces have greater contributions to the saltation characteristics of a sediment particle? The last question is what are the contributions of the turbulence fluctuations as well as effects of using two-and three-dimensional(2 D and 3 D) models on the simulation results? In order to fairly answer these questions, a systematic study was done by considering different scenarios. The current study is the first attempt to clearly discuss these issues. A comprehensive 3 D saltation model for non-cohesive sediment was developed that includes all the hydrodynamic forces acting on the particle. The random nature of sediment transport was included using turbulent flow and bed-particle collision models. The eddy interaction model was applied to generate a3 D turbulent flow field. Bed-particle collisions were considered using the concept of a contact zone and a corresponding contact point. The validation of the model was done using the available experimental data for a wide range of sediment size(0.03 to 4.8 cm). For the first question, the results indicated that some of the hydrodynamic effects show opposing trends and some have negligible effects. With these opposing effects it is possible to adjust the coefficients of different models to achieve acceptable agreement with the same experimental data while omitting some aspects of the physics of the process. A suitable model for the shear lift force was develop

关键词： Two-phase model Turbulent flow Sediment transport Saltation Hydrodynamic forces

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Clinical and pathological findings of concurrent poxvirus lesions and aspergillosis infection in canaries

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Asian Pacific Journal of Tropical Biomedicine 2013年第3期3卷 182-185页

作者： Kheirandish reza Askari Nasrin salehi Mahmoud Department of Pathobiology Faculty of Veterinary MedicineShahid Bahonar University of Kerman Student of Veterinary Medicine Shahid Bahonar University of Kerman Department of Clinical Sciences Faculty of Veterinary MedicineShahid Bahonar University of Kerman

Objective:To investigate clinical,pathological and mycological findings in canaries,in which pox lesions and Aspergillus fumigatus(***)infection were observed ***:This study was performed on a breeding colony(about 100 canaries)affected by fatal wasting *** was undertaken on 10 severely affected canaries,and gross lesions were *** from internal organs displaying lesions were obtained for histopathological *** swap samples of internal organs of the all infected animals with lesions at necropsy were cultured in Sabouraud Dextrose Agar for mycological ***:At necropsy,caseous foci were determined in the lungs,on the air sacs,liver,spleen,*** of the eyelids,diffuse hemorrhages in the subcutaneous tissue with small papular lesions of the skin were other typical necropsy ***,pathognomonic eosinophilic intracytoplasmic inclusion bodies,which called Bollinger bodies,in both skin cells and vacuolated air way epithelial cells confirmed canary pox ***,histopathological examination of the white-yellowish caseous foci revealed necrotic granulomatous reaction consisting of macrophages,heterophil leukocytes and giant cells encapsulated with a fibrous *** the culture of the tissue samples,the formation of bluish green colonies confirmed *** ***:Canary pox has been known as the disease that can result in high losses in a short time,as a re-emerging disease that has not been present during recent years in canary flocks in ***,the current paper provides useful information to prevent misdiagnosed of canary pox disease which can cause secondary mycotic infection.

关键词： Canary Aspergilosis Diagnosis Pox infection Re-emerging disease Mycotic infections

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Influence of Specimen Geometry of Hot Torsion Test on Temperature Distribution During Reheating Treatment of API-X70

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Journal of Iron and Steel Research(International) 2010年第3期17卷 34-39页

作者： Bahman Mirzakhani Shahin Khoddam Hossein Arabi Mohammad Taghi salehi Seyed Hossein Seyedein Mohammad reza Aboutalebi Faculty of Engineering Arak University Department of Mechanical Engineering Monash UniversityClayton Campus Department of Materials and Metallurgical Engineering Iran University of Science and Technology

The commercial finite element package ANSYSTM was utilized for prediction of temperature distribution during reheating treatment of hot torsion test （HTT） samples with different geometries for API-X70 microalloyed steel. Simulation results show that an inappropriate choice of test specimen geometry and reheating conditions before deformation could lead to non-uniform temperature distribution within the gauge section of specimen. Therefore, assumptions of isothermal experimental conditions and zero temperature gradient within the specimen cross section appear unjustified and led to uncertainties of flow curve obtained. Recommendations on finding proper specimen geometry for reducing temperature gradient along the gauge part of specimen will be given to create homogeneous initial microstructure as much as possible before deformation in order to avoid uncertainty in consequent results of HTT.

关键词： hot torsion test simulation specimen geometry reheating treatment microalloyed steel

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