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Listar por autor "Martínez Minaya, Joaquín"

Mostrando ítems 1-9 de 9

A flexible Bayesian tool for CoDa mixed models: logistic-normal distribution with Dirichlet covariance

Martínez-Minaya, Joaquín; Rue, Haavard (Springer-Verlag, 2024-04-16)

[EN] Compositional Data Analysis (CoDa) has gained popularity in recent years. This type of data consists of values from disjoint categories that sum up to a constant. Both Dirichlet regression and logistic-normal regression ...
A mesoscale analysis of relations between fish species richness and environmental and anthropogenic pressures in the Mediterranean Sea

Carmezim, Joao; Pennino, Maria Grazia; Martínez-Minaya, Joaquín; Conesa, David; Coll, Marta (Elsevier, 2022-09)

[EN] Although there is a great knowledge about individual anthropogenic threats to different fish species in the Mediterranean Sea, little is known about how these threats accumulate and interact to affect fish species ...
Automatic cross-validation in structured models: Is it time to leave out leave-one-out?

Adin, Aritz; Teixeira Krainski, Elias; Lenzi, Amanda; Liu, Zhedong; Martínez-Minaya, Joaquín; Rue, Haavard (Elsevier, 2024-08)

[EN] Standard techniques such as leave-one-out cross-validation (LOOCV) might not be suitable for evaluating the predictive performance of models incorporating structured random effects. In such cases, the correlation ...
Bayesian feedback in the framework of ecological sciences

Figueira, Mario; Barber, Xavier; Conesa, David; López-Quilez, Antonio; Martínez-Minaya, Joaquín; Paradinas, Iosu; Pennino, Maria Grazia (Elsevier, 2024-12)

[EN] In ecological studies, it is not uncommon to encounter scenarios where the same phenomenon (e.g., species occurrence, species abundance) is observed using two different types of samplers. For example, species data can ...
Comunidades de práctica predoctorales: Diez años del Seminari Predoc en la Facultat de Ciències Matemàtiques

Calvo Bayarri, Gabriel; Castillo Medina, Jaime; Cosme Llópez, Enric; Dantas, Sheldon; Giménez Conejero, Roberto; Martínez Minaya, Joaquín; Reula Martín, Miguel (Editorial Universitat Politècnica de València, 2022-10-28)

[EN] The Seminari Predoc is a community of practice organised by PhD students together with the Faculty of Mathematical Sciences of the Valencia University. The aim of these seminars is to help participants to refine and ...
Cost-Sensitive Ordinal Classification Methods to Predict SARS-CoV-2 Pneumonia Severity

García-García, Fernando; Lee, Dae-Jin; España Yandiola, Pedro Pablo; Urrutia Landa, Isabel; Martínez-Minaya, Joaquín; Hayet-Otero, Miren; Ermecheo, Monica Nieves; Quintana, José María; Menéndez, Rosario; Torres, Antoni; Jorge, Rafael Zalacain (Institute of Electrical and Electronics Engineers, 2024-05)

[EN] Objective: To study the suitability of costsensitive ordinal artificial intelligence-machine learning (AIML) strategies in the prognosis of SARS-CoV-2 pneumonia severity.; Materials & methods: Observational, retrospective, ...
Exploring green gentrification in 28 global North cities: the role of urban parks and other types of greenspaces

Triguero-Mas, Margarita; Anguelovski, Isabelle; Connolly, James J T; Martin, Nick; Matheney, Austin; Cole, Helen V S; Pérez-Del-Pulgar, Carmen; García-Lamarca, Melissa; Shokry, Galia; Argüelles, Lucía; Conesa, David; Gallez, Elsa; Sarzo, Blanca; Beltran Sevilla, Miguel Angel; López Máñez, Jesúa; Martínez-Minaya, Joaquín; Oscilowicz, Emilia; Arcaya, Mariana C; Baró, Francesc (IOP Publishing, 2022-10-01)

[EN] Although cities globally are increasingly mobilizing re-naturing projects to address diverse urban socio-environmental and health challenges, there is mounting evidence that these interventions may also be linked to ...
Extracting relevant predictive variables for COVID-19 severity prognosis: An exhaustive comparison of feature selection techniques

Hayet-Otero, Miren; García-García, Fernando; Lee, Dae-Jin; Martínez-Minaya, Joaquín; España Yandiola, Pedro Pablo; Urrutia Landa, Isabel; Nieves Ermecheo, Mónica; Quintana, José María; Menéndez, Rosario; Torres, Antoni; Zalacain Jorge, Rafael; Arostegui, Inmaculada (Public Library of Science, 2023-04-13)

[EN] With the COVID-19 pandemic having caused unprecedented numbers of infections and deaths, large research efforts have been undertaken to increase our understanding of the disease and the factors which determine diverse ...
Modelos predictivos para un problema de reparto modal

Palma Mejia, Luis Enrique (Universitat Politècnica de València, 2023-07-25)

[ES] Este trabajo se centra en el análisis del modelo de reparto modal, que se utiliza principalmente en el ámbito del transporte, a través de la teoría de la utilidad aleatoria. En particular, se explora el modelo logit ...