Results 31 to 40 of about 600,300 (312)
Remote Sensing, 2023 The soil moisture from the South-to-North Water Diversion Middle Route Project is assessed in this study. Complex and variable geological conditions complicate the prediction of soil moisture in the study area.
Qingfeng Hu +10 more
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Higher Order Mean Squared Error of Generalized Method of Moments Estimators for Nonlinear Models [PDF]
Discrete Dynamics in Nature and Society, 2014 Generalized method of moments (GMM) has been widely applied for estimation of nonlinear models in economics and finance. Although generalized method of moments has good asymptotic properties under fairly moderate regularity conditions, its finite sample performance is not very well.
Yi Hu +3 more
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Minimum mean square distance estimation of a subspace [PDF]
, 2011 We consider the problem of subspace estimation in a Bayesian setting. Since we are operating in the Grassmann manifold, the usual approach which consists of minimizing the mean square error (MSE) between the true subspace U and its estimate U may not be ...
Jean-Yves Tourneret +5 more
core +1 more source
CoRR, 2018 For optimization on large-scale data, exactly calculating its solution may be computationally difficulty because of the large size of the data. In this paper we consider subsampled optimization for fast approximating the exact solution. In this approach, one gets a surrogate dataset by sampling from the full data, and then obtains an approximate ...
Rong Zhu, Jiming Jiang
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Comparison of the normalized mean absolute error (MAE) and normalized root mean square error (RMSE) of the proposed model with other state-of-art forecasting methods for all three offshore windfarms. [PDF]
, 2021 Comparison of the normalized mean absolute error (MAE) and normalized root mean square error (RMSE) of the proposed model with other state-of-art forecasting methods for all three offshore windfarms.
Hyun-Koo Kang (11307727) +5 more
core +1 more source
Lateral velocity measurement and error analysis
The Journal of Engineering, 2019 Most existing velocity measurement methods can only calculate the radial velocity by Doppler effect. Here, the authors study the method of measuring the lateral velocity.
Mengye Qiang, Yechao Bai, Xinggan Zhang
doaj +1 more source
Cognitive Computation and Systems, 2021 In order to solve the problem of low accuracy and efficiency of soil moisture content prediction in tea plantations and improve the level of soil water content prediction, a soil moisture content prediction model for tea plantations based on the support ...
Ying Huang +4 more
doaj +1 more source
A chain regression exponential type imputation method for mean estimation in the presence of missing data [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2022 Imputation methods deal with item nonresponse to solve the missing data problem. A new imputation method and corresponding point estimators for population mean have been proposed under two situations: using the response rate and the constant that gives
Kanisa Chodjuntug, Nuanpan Lawson
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Comparison of the mean absolute error (MAE) and root mean square error (RMSE) of the proposed model with other state-of-art forecasting methods for all three offshore windfarms. [PDF]
, 2021 Comparison of the mean absolute error (MAE) and root mean square error (RMSE) of the proposed model with other state-of-art forecasting methods for all three offshore windfarms.
Hyun-Koo Kang (11307727) +5 more
core +1 more source
Istanbul Business Research, 2021 This study aims to create a monthly sales quantity budget by making use of the previous income data of an enterprise operating within the construction sector, which is considered the locomotive of the economy.
Ayşe Soy Temür, Şule Yıldız
doaj +1 more source