Variability and determinants of yields in rice production systems of West Africa

A Niang, M Becker, F Ewert, I Dieng, T Gaiser… - Field crops …, 2017 - Elsevier
Rice (Oryza spp.) is the major staple food for most countries in West Africa, but local
production does not meet demand. Rice is grown mainly by smallholder farmers, and yields …

[HTML][HTML] Estimating production functions through additive models based on regression splines

VJ España, J Aparicio, X Barber, M Esteve - European Journal of …, 2024 - Elsevier
This paper introduces a new methodology for the estimation of production functions
satisfying some classical production theory axioms, such as monotonicity and concavity …

[HTML][HTML] Support Vector Frontiers with kernel splines

NM Guerrero, R Moragues, J Aparicio… - Omega, 2024 - Elsevier
Among recent methodological proposals for efficiency measurement, machine learning
methods are playing an important role, particularly in the reduction of overfitting in classical …

Measuring technical efficiency for multi-input multi-output production processes through OneClass Support Vector Machines: a finite-sample study

R Moragues, J Aparicio, M Esteve - Operational Research, 2023 - Springer
We introduce a new method for the estimation of production technologies in a multi-input
multi-output context, based on OneClass Support Vector Machines with piecewise linear …

Performance evaluation of decision-making units through boosting methods in the context of free disposal hull: Some exact and heuristic algorithms

MD Guillen, J Aparicio, M Esteve - International Journal of …, 2023 - World Scientific
This paper aims to show how to calculate different efficiency measures using a technology
estimator defined through the adaptation of the Gradient Tree Boosting algorithm. This …

[HTML][HTML] Measuring dynamic inefficiency through machine learning techniques

J Aparicio, M Esteve, M Kapelko - Expert Systems with Applications, 2023 - Elsevier
This paper contributes by develo** new models for assessing dynamic inefficiency that
incorporate machine learning techniques. In particular, the new approaches apply decision …

[HTML][HTML] An unsupervised learning-based generalization of Data Envelopment Analysis

R Moragues, J Aparicio, M Esteve - Operations Research Perspectives, 2023 - Elsevier
In this paper, we introduce an unsupervised machine learning method for production frontier
estimation. This new approach satisfies fundamental properties of microeconomics, such as …

Genotypic variation in grain P loading across diverse rice growing environments and implications for field P balances

E Vandamme, M Wissuwa, T Rose, I Dieng… - Frontiers in Plant …, 2016 - frontiersin.org
More than 60% of phosphorus (P) taken up by rice (Oryza spp.) is accumulated in the grains
at harvest and hence exported from fields, leading to a continuous removal of P. If P …

An adaptation of Random Forest to estimate convex non‐parametric production technologies: an empirical illustration of efficiency measurement in education

VJ España, J Aparicio, X Barber - International Transactions in …, 2024 - Wiley Online Library
This paper presents a novel approach to conduct non‐parametric estimations of production
technologies that adhere to the basic assumptions of production theory axioms, including …

Enhanced efficiency assessment in manufacturing: Leveraging machine learning for improved performance analysis

MD Guillen, V Charles, J Aparicio - Omega, 2025 - Elsevier
This paper introduces EATBoosting, a novel application of gradient tree boosting within the
Data Envelopment Analysis (DEA) framework, designed to address undesirable outputs in …