Results 11 to 20 of about 21,802,969 (303)
A sampling strategy for assessing habitat coverage at a broad spatial scale
Ecological Indicators, 2022 The quantitative assessment of habitat conservation status is a major task for European Union member states in compliance with Council Directive 92/43. One goal of the European 2030 Biodiversity Strategy is the effective management of habitats that show ...
Lorenzo Fattorini +5 more
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Off-Grid DoA Estimation via Two-Stage Cascaded Neural Network
Energies, 2021 This paper introduces an off-grid DoA estimation via two-stage cascaded network which can resolve a mismatch between true direction-of-arrival (DoA) and discrete angular grid.
Hyeonjin Chung +4 more
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A Vision-Based Two-Stage Framework for Inferring Physical Properties of the Terrain
Applied Sciences, 2020 The friction and stiffness properties of the terrain are very important pieces of information for mobile robots in motion control, dynamics parameter adjustment, trajectory planning, etc.
Yunlong Dong +5 more
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Threshold Value Estimation Using Adaptive Two-Stage Plans in R
Journal of Statistical Software, 2015 This paper introduces the R package twostageTE for estimation of an inverse regression function at a given point when one can sample an explanatory covariate at different values and measure the corresponding responses.
Shawn Mankad +2 more
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Two-Stage Fast DOA Estimation Based on Directional Antennas in Conformal Uniform Circular Array
Sensors, 2021 In conformal array radar, due to the directivity of antennas, the responses of the echo signals between different antennas are distinct, and some antennas cannot even receive the target echo signal.
Yao Xie +4 more
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On Two-Stage Non-Parametric Estimation [PDF]
The Annals of Mathematical Statistics, 1963 Abstract : A two-sample, two-stage non-parametric estimation problem is studied. The parameter phi phi(F, G) under consideration is estimable (i.e., there exists an unbiased estimator which is a function of independent observations from two populations with cumulative distribution functions F(X) and G(Y). (Hence, it is called a two-sample problem.) The
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Two-stage robust optical flow estimation [PDF]
Proceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662), 2002 We formulate optical flow estimation as a two-stage regression problem. Based on characteristics of these two regression models and conclusions on modern regression methods, we choose a least trimmed squares followed by a weighted least squares estimator to solve the optical flow constraint (OFC); and at places where this one-stage robust method fails ...
Ming Ye, Robert M. Haralick
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Two-Stage Nested Array Direction of Arrival Estimation for Mixed Signals
Sensors, 2022 In this paper, a novel two-stage subspace-based direction of arrival (DOA) estimation algorithm with the nested array is proposed for mixed signals containing circular and non-circular ones.
Wanru Li, Ke Deng
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Two Stage and Related Estimators and Their Applications [PDF]
The Review of Economic Studies, 1986 This paper aims to provide a unified treatment of the properties of two stage estimators. General conditions are set forth for consistency, efficiency and correct inferences. Applications of the general theorems are made to models with expectations and diagnostic tests. The general approach frequently enables much simpler derivation of existing results,
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Two-stage re-estimation adaptive design: a simulation study
Epidemiology, Biostatistics and Public Health, 2013 Background: adaptive clinical trial design has been proposed as a promising new approach to improve the drug discovery process. Among the many options available, adaptive sample size re-estimation is of great interest mainly because of its ability to ...
Francesca Galli, Luigi Mariani
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