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A Spectral Convolutional Neural Network Model Based on Adaptive Fick’s Law for Hyperspectral Image Classification

Computers, Materials & Continua 2024年第4期79卷 19-46页

作者： Tsu-Yang Wu Haonan Li Saru Kumari chien-Ming chen School of Artificial Intelligence(School of Future Technology) Nanjing University of Information Science&TechnologyNanjing210044China College of Computer Science and Engineering Shandong University of Science and TechnologyQingdao266590China Department of Mathematics Chaudhary Charan Singh UniversityMeerutUttar Pradesh250004India

Hyperspectral image classification stands as a pivotal task within the field of remote sensing,yet achieving highprecision classification remains a significant *** response to this challenge,a Spectral Convolutional Neural Network model based on Adaptive Fick’s Law Algorithm(AFLA-SCNN)is *** Adaptive Fick’s Law Algorithm(AFLA)constitutes a novel metaheuristic algorithm introduced herein,encompassing three new strategies:Adaptive weight factor,Gaussian mutation,and probability update *** adaptive weight factor,the algorithmcan adjust theweights according to the change in the number of iterations to improve the performance of the *** helps the algorithm avoid falling into local optimal solutions and improves the searchability of the *** probability update strategy helps to improve the exploitability and adaptability of the *** the AFLA-SCNN model,AFLA is employed to optimize two hyperparameters in the SCNN model,namely,“numEpochs”and“miniBatchSize”,to attain their optimal ***’s performance is initially validated across 28 functions in 10D,30D,and 50D for CEC2013 and 29 functions in 10D,30D,and 50D for *** results indicate AFLA’s marked performance superiority over nine other prominent optimization ***,the AFLA-SCNN model was compared with the Spectral Convolutional Neural Network model based on Fick’s Law Algorithm(FLA-SCNN),Spectral Convolutional Neural Network model based on Harris Hawks Optimization(HHO-SCNN),Spectral Convolutional Neural Network model based onDifferential Evolution(DE-SCNN),SpectralConvolutionalNeuralNetwork(SCNN)model,and SupportVector Machines(SVM)model using the Indian Pines dataset and PaviaUniversity *** experimental results show that the AFLA-SCNN model outperforms other models in terms of Accuracy,Precision,Recall,and F1-score on Indian Pines and Pavia *** them,the Accuracy of the AFLA-SCNN model on India

关键词： Adaptive Fick’s law algorithm spectral convolutional neural network metaheuristic algorithm intelligent optimization algorithm hyperspectral image classification

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Machine learning and evolutionary prediction of superhard BC-N compounds

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npj Computational Materials 2021年第1期7卷 1034-1041页

作者： Wei-Chih chen Joanna N.Schmidt Da Yan Yogesh K.Vohra cheng-chien chen Department of Physics University of Alabama at BirminghamBirminghamALUSA Department of Computer Science University of Alabama at BirminghamBirminghamALUSA

We build random forests models to predict elastic properties and mechanical hardness of a compound,using only its chemical formula as *** model training uses over 10,000 target compounds and 60 features based on stoichiometric attributes,elemental properties,orbital occupations,and ionic bonding *** the models,we construct triangular graphs for B-C-N compounds to map out their bulk and shear moduli,as well as hardness *** graphs indicate that a 1:1 B-N ratio can lead to various superhard *** also validate the machine learning results by evolutionary structure prediction and density functional *** study shows that BC_(10)N,B_(4)C_(5)N_(3),and B_(2)C_(3)N exhibit dynamically stable phases with hardness values>40 GPa,which are superhard materials that potentially could be synthesized by low-temperature plasma methods.

关键词： prediction moduli occupation

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Cross-Frequency Coupling and Intelligent Neuromodulation

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Cyborg and Bionic Systems 2023年第1期4卷 284-297页

作者： chien-hung Yeh Chuting Zhang Wenbin Shi Men-Tzung Lo Gerd Tinkhauser Ashwini Oswal School of Information and Electronics Beijing Institute of TechnologyBeijingChina Department of Biomedical Sciences and Engineering National Central UniversityTaoyuanTaiwan Department of Neurology Bern University Hospital and University of BernBernSwitzerland MRC Brain Network Dynamics Unit University of OxfordOxfordUK

Cross-frequency coupling(CFC)reflects(nonlinear)interactions between signals of different *** from both patient and healthy participant studies suggests that CFC plays an essential role in neuronal computation,interregional interaction,and disease *** present review discusses methodological advances and challenges in the computation of CFC with particular emphasis on potential solutions to spurious coupling,inferring intrinsic rhythms in a targeted frequency band,and causal *** specifically focus on the literature exploring CFC in the context of cognition/memory tasks,sleep,and neurological disorders,such as Alzheimer's disease,epilepsy,and Parkinson's ***,we highlight the implication of CFC in the context and for the optimization of invasive and noninvasive neuromodulation and ***,CFC could support advancing the understanding of the neurophysiology of cognition and motor control,serve as a biomarker for disease symptoms,and leverage the optimization of therapeutic interventions,e.g.,closed-loop brain *** the evident advantages of CFC as an investigative and translational tool in neuroscience,further methodological improvements are required to facilitate practical and correct use in cyborg and bionic systems in the field.

关键词： epilepsy spite evident

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An Event Alarm System Based on Single and Group Human Behavior Analysis

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Journal of Electronic Science and Technology 2017年第2期15卷 123-132页

作者： hung-Yu Yeh I-cheng Chang Yung-Hsin chen Department of Computer Science&Information Engineering National Dong Hwa UniversityHualien 97401 cal-comp electronics and Communications Company Ltd. Taipei 10571

Due to the increasing demand for security, the development of intelligent surveillance systems has attracted considerable attention in recent years. This study aims to develop a system that is able to identify whether or not the people need help in a public place. Different from previous work, our work considers not only the behaviors of the target person but also the interaction between him and nearby people. In the paper, we propose an event alarm system which can detect the human behaviors and recognize the happening event through integrating the results generated from the single and group behavior analysis. Several new effective features are proposed in the study. Besides, a mechanism capable of extracting one-to-one and multiple-to-one relations is also developed. Experimental results show that the proposed approach can correctly detect human behaviors and provide the alarm messages when emergency events occur.

关键词： Index Terms Event alarm system group behavior analysis human behavior recognition single behavior analysis stooping curve.

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Characteristics and interpretation of the seismic signal of a field-scale landslide dam failure experiment

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Journal of Mountain Science 2017年第2期14卷 219-236页

作者： YAN Yan CUI Peng chen Su-chin chen Xiao-qing chen Hua-yong chien Yi-liang Key Laboratory of Mountain Surface Process and Hazards/Institute of Mountain Hazards and Environment Chinese Academy of SciencesChengdu 610041China University of Chinese Academy of Sciences Beijing 100049China Center for Excellence in Tibetan Plateau Earth Sciences Chinese Academy of SciencesBeijing 100101China Department of Soil and Water Conservation National Chung Hsing UniversityTaichung 40227Chinese Taipei

Outburst floods caused by breaches of landslide dams may cause serious damages and loss of lives in downstream areas; for this reason the study of the dynamic of the process is of particular interest for hazard and risk assessment. In this paper we report a field-scale landslide dam failure experiment conducted in Nantou County, in the central of *** seismic signal generated during the dam failure was monitored using a broadband seismometer and the signal was used to study the dam failure *** used the short-time Fourier transform(STFT) to obtain the time–frequency characteristics of the signal and analyzed the correlation between the power spectrum density(PSD) of the signal and the water level. The results indicate that the seismic signal generated during the process consisted of three components: a low-frequency band(0–1.5 Hz), an intermediate-frequency band(1.5–10 Hz) and a highfrequency band(10–45 Hz). We obtained the characteristics of each frequency band and the variations of the signal in various stages of the landslide dam failure process. We determined the cause for the signal changes in each frequency band and its relationship with the dam failure process. The PSD sediment flux estimation model was used to interpret the causes of variations in the signal energy before the dam failure and the clockwise hysteresis during the failure. Our results show that the seismic signal reflects the physical characteristics of the landslide dam failure process. The method and equipment used in this study may be used to monitor landslide dams and providing early warnings for dam failures.

关键词： Landslide dam Dam failure process Field-scale experiment Seismic signal

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A Stability Criterion for Time-Delay Tension Leg Platform Systems Subjected to External Force

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China Ocean Engineering 2009年第1期23卷 49-57页

作者： chen-Yuan chen chien-wen SHEN cheng-Wu chen Kevin Fong-Rey LIU Ming-Jen chenG Department of Management Information System Yung- Ta Institute of Technology and Commerce Ping-Tung County 90941 China Department of logistics Management National Kaohsiung First University of Science and Technalgy Kaohsiung City 811 China Department of Logistics Management Shu- Te University Kaohsiung 82445 China Graduate Institute of Management National Kaohsiung First University of Science and Technolgy Kaohsiung City 811 China Department of Safety Health and Environmental Engineering Ming Chi University of Technology Taipei 24301 China

Stability analysis plays a central role in nonlinear system theory and engineering application. Over the past few years, the stability analysis of fuzzy systems has been proposed and there are many successful applications in practical engineering. Therefore, in this paper firstly proposed is the stability analysis on oceanic structure by fuzzy models. In the present study, Takagi-Sugeno （T-S） fuzzy model is proposed for a time delay tension leg platform （TLP） system subjected to an external wave force. In terms of stability analysis, linear matrix inequality （LMI） conditions are derived via Lyapunov theory to guarantee the stability of the TLP system.

关键词： linear matrix inequality tension leg platform fuzzy model

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Recurrent genome duplication events likely contributed to both the ancient and recent rise of ferns^FA

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Journal of Integrative Plant Biology 2020年第4期62卷 433-455页

作者： chien-Hsun Huang Xinping Qi Duoyuan chen Ji Qi Hong Ma Ministry of Education Key Laboratory of Biodiversity Sciences and Ecological Engineering and State Key Laboratory of Genetic Engineering Collaborative Innovation Center for Genetics and DevelopmentInstitute of Plant BiologyInstitute of Biodiversity SciencesCenter for Evolutionary BiologySchool of Life SciencesFudan UniversityShanghai 200433China Department of Biology The Huck Institutes of the Life SciencesThe Pennsylvania State UniversityUniversity ParkUniversity ParkPA 16802USA

Ferns, the second largest group of vascular plants, originated ~400 mil ion years ago(Mya). They became dominant in the ancient Earth landscape before the angiosperms and are stil important in current *** ferns have exceptional y high chromosome numbers,possibly resulting from whole-genome duplications(WGDs).However, WGDs have not been investigated molecularly across fern diversity. Here we detected and dated fern WGDs using a phylogenomic approach and by calculating synonymous substitution rates(Ks). We also investigated a possible correlation between proposed WGDs and shifts in species diversification rates. We identified 19 WGDs: three ancient events along the fern phylogenetic backbone that are shared by 66%–97% of extant ferns, with additional lineage-specific WGDs for eight orders, providing strongevidence for recurring genome duplications across fern evolutionary history. We also observed similar Ks peak values for more than half of these WGDs, with multiple WGDs occurring close to the Cretaceous(~145–66 Mya). Despite the repeated WGD events, the biodiversity of ferns declined during the Cretaceous, implying that other factors probably contributed to the floristic turnover from ferns to angiosperms. This study provides molecular evidence for recurring WGDs in ferns and offers important clues to the genomic evolutionary history of ferns.

关键词： likely Cretaceous backbone

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Continuous Fabrication of Ti_(3)C_(2)T_x MXene-Based Braided Coaxial Zinc-Ion Hybrid Supercapacitors with Improved Performance

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Nano-Micro Letters 2022年第2期14卷 206-215页

作者： Bao Shi La Li Aibing chen Tien-chien Jen Xinying Liu Guozhen Shen Hebei University of Science and Technology 70 Yuhua RoadShijiazhuang 050018People’s Republic of China State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences&Center of Materials Science and Optoelectronic Engineering University of Chinese Academy of SciencesBeijing 100083People’s Republic of China Department of Mechanical Engineering Science Kingsway CampusUniversity of JohannesburgAuckland ParkJohannesburg 2006South Africa Institute for Development of Energy for African Sustainability University of South AfricaPrivate Bag X6Florida 1710South Africa

Zinc-ion hybrid fiber supercapacitors(FSCs)are promising energy storages for wearable electronics owing to their high energy density,good flexibility,and ***,it is still a critical challenge to optimize the structure of the designed FSC to improve energy density and realize the continuous fabrication of super-long ***,we propose a braided coaxial zinc-ion hybrid FSC with several meters of Ti_(3)C_(2)T_x MXene cathode as core electrodes,and shell zinc fiber anode was braided on the surface of the Ti_(3)C_(2)T_x MXene fibers across the solid *** to the simulated results using ANSYS Maxwell software,the braided structures revealed a higher capacitance compared to the spring-like *** resulting FSCs exhibited a high areal capacitance of 214 mF cm^(-2),the energy density of 42.8μWh cm^(-2)at 5 mV s^(-1),and excellent cycling stability with 83.58%capacity retention after 5000 *** coaxial FSC was tied several kinds of knots,proving a shape-controllable fiber energy ***,the knitted FSC showed superior stability and weavability,which can be woven into watch belts or embedded into textiles to power smart watches and LED arrays for a few days.

关键词： Ti_(3)C_(2)T_x MXene Fiber supercapacitor Coaxial structure Zinc-ion

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A Lightweight and Robust User Authentication Protocol with User Anonymity for IoT-Based Healthcare

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Computer Modeling in Engineering & Sciences 2022年第4期131卷 307-329页

作者： chien-Ming chen Shuangshuang Liu Shehzad Ashraf Chaudhry Yeh-cheng chen Muhammad Asghar khan College of Computer Science and Engineering Shandong University of Science and TechnologyQingdao266590China Department of Computer Engineering Istanbul Gelisim UniversityIstanbul34310Turkey Department of Computer Science University of CaliforniaDavisCA95616USA Department of Electrical Engineering Hamdard UniversityIslamabad44000Pakistan

With the rise of the Internet of Things(IoT),the word“intelligent medical care”has increasingly become a major *** medicine adopts the most advanced IoT technology to realize the interaction between patients and people,medical institutions,andmedical ***,with the openness of network transmission,the security and privacy of information transmission have become a major ***,Masud et *** a lightweight anonymous user authentication protocol for IoT medical treatment,claiming that their method can resist various ***,through analysis of the protocol,we observed that their protocol cannot effectively resist privileged internal attacks,sensor node capture attacks,and stolen authentication attacks,and their protocol does not have perfect forward ***,we propose a new protocol to resolve the security vulnerabilities in Masud’s protocol and remove some redundant parameters,so as tomake the protocolmore compact and *** addition,we evaluate the security and performance of the new protocol and prove that the overall performance of the new protocol is better than that of other related protocols.

关键词： IoT intelligent medical user authentication

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Current status in the treatment options for esophageal achalasia

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World Journal of Gastroenterology 2013年第33期19卷 5421-5429页

作者： Seng-Kee Chuah chien-Hua Chiu Wei-chen Tai Jyong-Hong Lee hung-I Lu Chi-Sin Changchien Ping-Huei Tseng Keng-Liang Wu Gastrointestinal Motility Unit Division of HepatogastroenterologyKaohsiung Chang Gung Memorial Hospitaland Chang Gung University College of Medicine Division of General Medicine Department of MedicineKaohsiung Chang Gung Memorial Hospitaland Chang Gung University College of Medicine Digestive Disease Center Department of Medical ResearchShow-Chwan Memorial Hospital Division of Thoracic and Cardiovascular Surgery Kaohsiung Chang Gung Memorial Hospital Department of Internal Medicine Graduate Institute of Clinical MedicineNational Taiwan University Hospital and College of MedicineNational Taiwan University

Recent advances in the treatment of achalasia include the use of high-resolution manometry to predict the outcome of patients and the introduction of peroral endoscopic myotomy(POEM).The first multicenter randomized,controlled,2-year follow-up study conducted by the European Achalasia Trial group indicated that laparoscopic Heller myotomy(LHM)was not superior to pneumatic dilations(PD).Publications on the long-term success of laparoscopic surgery continue to *** addition,laparoscopic single-site surgery is applicable to advanced laparoscopic operations such as LHM and anterior *** optimal treatment option is an ongoing matter of *** this review,we provide an update of the current progress in the treatment of esophageal *** new conclusive data prove otherwise,LHM is considered the most durable treatment for achalasia at the expense of increased reflux-associated ***,PD is the first choice for non-surgical treatment and is more *** PD according to an"on-demand"strategy based on symptom recurrence can achieve long-term *** making should be based on clinical evidence that identifies a subcategory of patients who would benefit from specific treatment *** has shown promise but its long-term efficacy and safety need to be assessed further.

关键词： Esophageal achalasia Endoscopic pneumatic dilations Botulinum injection Peroral endoscopic myotomy Minimally invasive Heller myotomy

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