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3321
APOE4 and chronic health risk factors are associated with sex-specific preclinical Alzheimer’s disease neuroimaging biomarkers
Published 2025-05-01“…We did not observe sex differences in amyloid-β levels. Higher than optimal waist to hip ratio was most strongly associated with lower volume among female participants.DiscussionFindings suggest genetic and chronic health risk factors are associated with sex-specific AD neuroimaging biomarkers. …”
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3322
Fractional-order SIR model for ADHD as a neurobiological and genetic disorder
Published 2025-07-01“…Numerical simulations are carried out using the Laplace Residue Power Series (LRPS) and Runge-Kutta 4th Order (RK4) methods for different values of the fractional-order parameter $$\alpha$$ . …”
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3323
Solving 0-1 Knapsack and Bin Packing Problem Using Logical Social Group Optimization
Published 2025-01-01“…The 0-1 Knapsack Problem (KP) and Bin Packing Problem (BPP) are NP-hard combinatorial optimization challenges often tackled using metaheuristics. …”
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3324
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3325
Node selection method in federated learning based on deep reinforcement learning
Published 2021-06-01“…To cope with the impact of different device computing capabilities and non-independent uniformly distributed data on federated learning performance, and to efficiently schedule terminal devices to complete model aggregation, a method of node selection based on deep reinforcement learning was proposed.It considered training quality and efficiency of heterogeneous terminal devices, and filtrate malicious nodes to guarantee higher model accuracy and shorter training delay of federated learning.Firstly, according to characteristics of model distributed training in federated learning, a node selection system model based on deep reinforcement learning was constructed.Secondly, considering such factors as device training delay, model transmission delay and accuracy, an optimization model of accuracy for node selection was proposed.Finally, the problem model was constructed as a Markov decision process and a node selection algorithm based on distributed proximal strategy optimization was designed to obtain a reasonable set of devices before each training iteration to complete model aggregation.Simulation results demonstrate that the proposed method significantly improves the accuracy and training speed of federated learning, and its convergence and robustness are also well.…”
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3326
Node selection method in federated learning based on deep reinforcement learning
Published 2021-06-01“…To cope with the impact of different device computing capabilities and non-independent uniformly distributed data on federated learning performance, and to efficiently schedule terminal devices to complete model aggregation, a method of node selection based on deep reinforcement learning was proposed.It considered training quality and efficiency of heterogeneous terminal devices, and filtrate malicious nodes to guarantee higher model accuracy and shorter training delay of federated learning.Firstly, according to characteristics of model distributed training in federated learning, a node selection system model based on deep reinforcement learning was constructed.Secondly, considering such factors as device training delay, model transmission delay and accuracy, an optimization model of accuracy for node selection was proposed.Finally, the problem model was constructed as a Markov decision process and a node selection algorithm based on distributed proximal strategy optimization was designed to obtain a reasonable set of devices before each training iteration to complete model aggregation.Simulation results demonstrate that the proposed method significantly improves the accuracy and training speed of federated learning, and its convergence and robustness are also well.…”
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3327
Enhancing Residential Electricity Consumption Forecasting with Meta-Heuristic Algorithms
Published 2024-06-01“…This study explores optimizing Artificial Neural Network (ANN) parameters using meta-heuristic algorithms instead of traditional gradient-based methods to predict residential electricity consumption across different seasons. …”
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3328
Cryopreservation of Noble Scallop Mimachlamys nobilis sperm: Optimization study of cooling rate and thawing temperature
Published 2024-12-01“…This study examined the effects of freezing protocols and thawing methods on the cryopreservation of Mimachlamys nobilis sperm. …”
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3329
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3330
APPLICATION OF HYBRID RANDOM SEARCH METHOD TO OPTIMISATION OF ENGINEERING SYSTEMS’ PARAMETERS
Published 2018-07-01“…The obtained method is applied to the optimization of parameters of different engineering systems. …”
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3331
Effects of Mathematical Model of MR Damper on Its Control Performance; A Nonlinear Comparative Study
Published 2019-09-01“…Using different modelling methods can lead to different voltages for the MR damper, which subsequently results in changes to the responses of the controlled structure. …”
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3332
Study of the protective properties of immunodominant proteins of orthopoxviruses in various methods of immunization
Published 2025-03-01“…This method could be used for development of new multivalent preparations against various viral infections.…”
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3333
Microscopic Remaining Oil Classification Method and Utilization Based on Kinetic Mechanism
Published 2024-10-01“…Therefore, this study aims to investigate the state, classification method and utilization mechanism of the microscopic remaining oil in the late period of the ultra-high water cut. …”
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3334
A Distributed Conjugate Gradient Online Learning Method over Networks
Published 2020-01-01“…To accelerate the convergence speed of the algorithm, we present a distributed online conjugate gradient algorithm, different from a gradient method, in which the search directions are a set of vectors that are conjugated to each other and the step sizes are obtained through an accurate line search. …”
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3335
Soil moisture variation and affecting factors analysis in the Zhangjiakou–Chengde district based on modified temperature vegetation dryness index
Published 2024-11-01“…Based on the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Global Land Data Assimilation System (GLDAS) datasets, the spatiotemporal variation in surface soil moisture in the ZC was simulated from 2001 to 2021 using the temperature vegetation dryness index (TVDI) model. The optimal parameter geographical detector (OPGD) method was used to identify the contributions of 10 factors affecting soil moisture. …”
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3336
A Methodical Review on Carbon-Based Nanomaterials in Energy-Related Applications
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3337
Research Progress in the Effect of Vanillin Production Methods on Its Flavor Quality
Published 2025-07-01“…By utilizing enzymes, genes and metabolic engineering, biosynthesis can effectively increase the yield of vanillin and has the capability to control the generation of by-products with natural characteristic flavors, which demonstrates a broad prospect for industrialization and flavor quality optimization. This review summarizes the major production methods of vanillin, analyzes the effects of different production methods on its flavor quality, and discusses the future development direction of vanillin, with a view to providing new technical support and ideas for the sustainable development of the vanillin industry.…”
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3338
Modeling of Complex Integrated Photonic Resonators Using the Scattering Matrix Method
Published 2024-11-01“…Our approach is universal across different integrated platforms, providing a useful tool for designing and optimizing integrated photonic devices with complex configurations.…”
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3339
Evaluation method of shale reservoir fracability based on double sweet spots
Published 2024-03-01“…This method can provide effective scientific guidance for optimizing the well trajectory, increasing the drilling encounter rate with high-quality reservoirs, and optimizing the construction plan of reservoir fracturing.…”
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3340
Modified Morphological Component Analysis Method for SAR Image Clutter Suppression
Published 2025-05-01“…To overcome the problem, a modified MCA method is proposed in this paper. The proposed method formulates clutter suppression as a constraint optimization problem that combines MCA with incoherence constraint and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>L</mi><mn>0</mn></msub></semantics></math></inline-formula> gradient minimization, and it presents an effective solution to the optimization problem. …”
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