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241
Weighted average ensemble for Cholesky-based covariance matrix estimation
Published 2025-04-01“…Our key idea is to obtain different weights for different candidate estimates by minimizing an appropriate risk function with respect to the Frobenius norm. Different from the existing ensemble estimation based on the MCD, the proposed method provides a sparse weighting scheme such that one can distinguish which variable orderings employed in the MCD are useful for the ensemble matrix estimate. …”
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242
Measurement and analysis of technical efficiency in the production of wheat and barley crops in Erbil Governorate for the agricultural season 2020-2021
Published 2022-03-01“…The study used the Cobb-Douglas production function using four traditional production factors, which are (land, labor, machinery, and fertilizers) in addition to a dummy variable (D1), which represents supplementary irrigation, to estimate the parameters of the stochastic frontier model. …”
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243
Analysis of Bulk Queueing Model with Load Balancing and Vacation
Published 2024-12-01“…Cloud computing using power BI can be analyzed based on server load balancing. The function that determines the probability of the queue size at any given time is derived for the specified queueing model using the supplementary variable technique with the remaining time as the supplementary variable. …”
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244
Induction Motor Geometric Parameter Optimization Using a Metaheuristic Optimization Method for High-Efficiency Motor Design
Published 2025-02-01“…Ten motor design parameters were used as design variables. IM efficiency was improved, as the objective function. …”
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245
An efficient dynamic reliability method for maglev vehicle-bridge systems and its application in random controller parameters analysis
Published 2025-03-01“…Then, by treating the controller parameters as normally distributed random variables, the accuracy and efficiency of the proposed reliability method were verified through comparison with the Monte Carlo method and the one-stage sampling surrogate model. …”
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246
An analysis of agricultural production efficiency of Yellow River Basin based on a three-stage DEA Malmquist model
Published 2025-08-01“…Abstract Agriculture functions as the cornerstone of national development, and the Yellow River Basin (YRB) plays a crucial role in China’s economy. …”
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247
Efficient Explainable Models for Alzheimer’s Disease Classification with Feature Selection and Data Balancing Approach Using Ensemble Learning
Published 2024-12-01“…Clinical data, including a range of cognitive, functional, and demographic variables, play a crucial role in Alzheimer’s disease classification. …”
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248
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Optimization of Liquefied Air Energy Storage System Coupled with Organic Rankine Cycle
Published 2020-01-01“…To construct the liquefied air energy storage model coupled with organic Rankine cycle, the system cycle efficiency and the exergy efficiency in the air energy release and generation stage are set as objective functions. …”
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251
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Consumptive Water Use and Efficiency of Irrigated U.S. Corn: Learning From Hundreds of Site‐Management‐Year Observations
Published 2024-08-01“…With the largest water footprint, irrigated corn production in the U.S. must be assessed for its ETc and water use efficiency (WUE) at a scale meaningful for producers and water managers. …”
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253
Lightweight deep learning system for automated bone age assessment in Chinese children: enhancing clinical efficiency and diagnostic accuracy
Published 2025-07-01“…The second stage employs a modified EfficientNetB3 architecture for fine-grained epiphyseal grade classification, enhanced by the Rectified Adam (RAdam) optimizer and a composite loss function combining center loss and weighted cross-entropy to mitigate class imbalance. …”
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254
Biochar and its impact on soil profile and plant development
Published 2024-12-01Get full text
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255
Performance and variability analysis of ALD-grown wafer scale HfO2/Ta2O5-based memristive devices for neuromorphic computing
Published 2025-06-01“…Furthermore, the fabricated devices efficiently perform the synaptic functionalities in terms of potentiation (P) and depression (D), paired-pulse facilitation (PPF), and paired-pulse depression (PPD), with a least value of nonlinearity (NL) factor of 0.43 in synaptic response, which is close to the ideal value of NL in biological synapses. …”
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Production Cost Efficiency and Profitability of <i>Abakaliki Rice</i> in Ihialia Local Government Area of Anambra State, Nigeria
Published 2015-07-01“…The study focused on the production cost efficiency and profitability of Abakaliki rice in Ihialia Local Government Area of Anambra State, Nigeria.. …”
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258
Production Cost Efficiency and Profitability of <i>Abakaliki Rice</i> in Ihialia Local Government Area of Anambra State, Nigeria
Published 2015-07-01“…The study focused on the production cost efficiency and profitability of Abakaliki rice in Ihialia Local Government Area of Anambra State, Nigeria.. …”
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259
Analysis of technical efficiency and socio-economic factors influencing the development of smallholder oil palm plantations in Batanghari Regency, Indonesia
Published 2023-02-01“…This study aims to analyze technical efficiency and the influence of socio-economic factors on the development of smallholder oil palm plantations. …”
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260
RESOURCE USE EFFICIENCY OF TEMPERATE SILK COCOONS IN NORTH-WESTERN HIMALAYAN REGION OF KASHMIR VALLEY, JAMMU AND KASHMIR, INDIA
Published 2022-01-01“…Sericulture's resource efficiency are critical for long-term growth and contributes greatly to Kashmir's rural and urban economies for sustainable livelihood and inclusive growth. …”
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