Results 21 to 30 of about 1,385,843 (310)

ANALYSIS OF THE AGRICULTURAL SECTOR GROWTH USING MALMQUIST TOTAL FACTOR PRODUCTIVITY INDEX FOR 165 COUNTRIES [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2016
This study was conducted to estimates the Malmquist productivity indices using the data envelopment analysis (DEA) for 165 countries over 8 regions and classified across 8 groups based on agricultural gross production value during the study period (1980 ...
Ayman Abouzeid
doaj   +1 more source

Comparative analysis of modified semi-supervised learning algorithms on a small amount of labeled data

open access: yesSistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2022
The paper is devoted to improving semi-supervised clustering methods and comparing their accuracy and robustness. The proposed approach is based on expanding a clustering algorithm for using an available set of labels by replacing the distance function.
Leonid Lyubchyk, Klym Yamkovyi
doaj   +1 more source

A QUANTITATIVE METHOD FOR ANALYSING 3-D BRANCHING IN EMBRYONIC KIDNEYS: DEVELOPMENT OF A TECHNIQUE AND PRELIMINARY DATA

open access: yesImage Analysis and Stereology, 2011
The normal human adult kidney contains between 300,000 and 1 million nephrons (the functional units of the kidney). Nephrons develop at the tips of the branching ureteric duct, and therefore ureteric duct branching morphogenesis is critical for normal ...
Gabriel Fricout   +4 more
doaj   +1 more source

Electricity Sector Reform Performance in Sub-Saharan Africa: A Parametric Distance Function Approach

open access: yesEnergies, 2022
Electricity sector reforms have transformed the structure and organization of the sector worldwide. While outcomes of reforms in developed and developing countries have been extensively examined, there is limited analysis of the reforms in sub-Saharan ...
Adwoa Asantewaa   +2 more
doaj   +1 more source

Parameter tuning in KNN for software defect prediction: an empirical analysis

open access: yesJurnal Teknologi dan Sistem Komputer, 2019
Software Defect Prediction (SDP) provides insights that can help software teams to allocate their limited resources in developing software systems.
Modinat Abolore Mabayoje   +5 more
doaj   +1 more source

THE EULER NUMBER FROM THE DISTANCE FUNCTION

open access: yesImage Analysis and Stereology, 2013
We present a new method to obtain the Euler number of a domain based on the tangent counts of concentric spheres in ℝ³ (or circles in ℝ², with respect to the center O, that sweeps the domain.
Ximo Gual-Arnau
doaj   +1 more source

A PARALLEL ARCHITECTURE FOR CURVE-EVOLUTION PARTIAL DIFFERENTIAL EQUATIONS

open access: yesImage Analysis and Stereology, 2011
The computation of the distance function is a crucial and limiting element in many applications of image processing. This is particularly true for the PDE-based methods, where the distance is used to compute various geometric properties of the travelling
Eva Dejnožková, Petr Dokládal
doaj   +1 more source

A Linear Inverse Demand System

open access: yesJournal of Agricultural and Resource Economics, 1992
We present an inverse demand that can be estimated in a linear form. The model is derived from a specification of the distance function which is parametrically similar to the cost function underlying the Almost Ideal Demand System.
GianCarlo Moschini, Anuradha Vissa
doaj   +1 more source

Estimating a Profit Function in the Presence of Inefficiency: An Application to Russian Agriculture

open access: yesJournal of Agricultural and Resource Economics, 2002
The relationship among cost functions, distance functions, and technical inefficiency are utilized to show how technical inefficiency scores can be incorporated into the specification of a profit function and a related system of output supply and input ...
Carlos Anthony Arnade   +1 more
doaj   +1 more source

Environmentally Adjusted Agricultural Productivity in the Great Plains

open access: yesJournal of Agricultural and Resource Economics, 2004
This study adjusts 1960-1996 agricultural productivity gains in a panel of Great Plains states to account for the discharge of pesticide and nitrogen effluents into the environment.
Jon P. Rezek, Richard K. Perrin
doaj   +1 more source

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