Results 61 to 70 of about 970,726 (170)

Cross-Sectional Analysis of Household Food Demand in Estuaire Gabon: A Near-Ideal Quadratic Demand System Approach

open access: yesAgriculture
Gabon depends heavily on food imports to safeguard its food security; yet household food consumption patterns remain underexplored. This study investigates the structure of food demand in the Estuaire region, incorporating demographic determinants such ...
Charlene Ignanga   +4 more
doaj   +1 more source

Nonlinear Time Series and Neural-Network Models of Exchange Rates between the US Dollar and Major Currencies

open access: yesRisks, 2016
This paper features an analysis of major currency exchange rate movements in relation to the US dollar, as constituted in US dollar terms. Euro, British pound, Chinese yuan, and Japanese yen are modelled using a variety of non-linear models, including ...
David E. Allen   +3 more
doaj   +1 more source

Analysis of Reference Ranges of Total Serum Protein in Namibia: Clinical Implications

open access: yesProteomes, 2020
A reference range is an essential part of clinical laboratory test interpretation and patient care. The levels of total serum protein (TSP) are measured in sera to assess nutritional, liver, and kidney disorders.
Josephine N. Henok   +4 more
doaj   +1 more source

Non-parametric manifold learning

open access: yesElectronic Journal of Statistics
We introduce an estimator for distances in a compact Riemannian manifold based on graph Laplacian estimates of the Laplace-Beltrami operator. We upper bound the error in the estimate of manifold distances, or more precisely an estimate of a spectrally truncated variant of manifold distance of interest in non-commutative geometry (cf.
openaire   +2 more sources

Non-Parametric Maximum Likelihood Density Estimation and Simulation-Based Minimum Distance Estimators [PDF]

open access: yes, 2010
Indirect inference estimators (i.e., simulation-based minimum distance estimators) in a parametric model that are based on auxiliary non-parametric maximum likelihood density estimators are shown to be asymptotically normal.
Gach, Florian, Pötscher, Benedikt M.
core   +2 more sources

Estimation of indirect reference intervals for serum thyrotropin using hospital records

open access: yesAsian Journal of Medical Sciences, 2017
Background: Reference intervals of any biochemical analyte serve as an invaluable tool in clinical decision making. The IFCC (International Federation of Clinical Chemistry) guidelines for determining these values are not feasible in some hospital ...
Kushal Bhattarai
doaj   +1 more source

Non Parametric Models with Instrumental Variables [PDF]

open access: yes
This paper gives a survey of econometric models characterized by a relation between observable and unobservable random elements where these unobservable terms are assumed to be independent of another set of observable variables called instrumental ...
Florens, Jean-Pierre
core  

Non-parametric specification testing of non-nested econometric models [PDF]

open access: yes, 1994
We consider the non-nested testing prqblem of non-parametric regressions. We show that, when the regression functions are unknown under both the null and the alternative hypotheses, an extension of the J-test procedure of Davidson and Mackinnon (1981 ...
Delgado, Miguel A.   +2 more
core   +1 more source

Non-Parametric Loop-Shaping Algorithm for High-Order Servo Systems Based on Preset Frequency Domain Specifications

open access: yesEnergies
Loop shaping the controller for high-order systems, especially in the presence of flexible transmission components such as elastic shafts, gearboxes, and belts commonly found in servo systems, poses significant challenges.
Pengcheng Lan, Ming Yang, Chaoyi Shang
doaj   +1 more source

Long-Range Dependence in Daily Interest Rate [PDF]

open access: yes, 2000
We employ a number of parametric and non-parametric techniques to establish the existence of long-range dependence in daily interbank o er rates for four countries.
Ioannidis, C, Monoyios, M
core   +1 more source

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