Articles publicats Departament d'Informàtica, Matemàtica Aplicada i Estadística

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Universitat de Girona Facultat de Lletres

La Universitat de Girona és una institució pública que cerca l’excel·lència en la docència i en la recerca, i que participa en el progrés i el desenvolupament de la societat, mitjançant la creació, transmissió, difusió i crítica de la ciència, la tècnica, les humanitats, les ciències socials i les arts.La Universitat de Girona està arrelada al país i a la cultura catalana i és un dels principals motors econòmics i culturals del seu entorn. Al mateix temps, expressa la vocació d’universalitat i d’obertura a totes les tradicions, avenços i cultures.La Universitat té la seva seu a la ciutat de Girona i s’integra en el sistema d’universitats públiques catalanes.


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Llista ítems afegits recenment

Principal microbial groups: compositional alternative to phylogenetic grouping of microbiome data 

Boyraz, Asli; Pawlowsky-Glahn, Vera; Egozcue, Juan José; Acar, Aybar Can (Publication date: info:eu-re)

Statistical and machine learning techniques based on relative abundances have been used to predict health conditions and to identify microbial biomarkers. However, high dimensionality, sparsity and the compositional nature ...

Entropy stability and Milnor–Thurston invariants for Bowen–Series-like maps 

Alsedà i Soler, Lluís; Juher, David; Los, Jérôme; Mañosas, Francesc (Publication date: 2025)

We define a family of discontinuous maps on the circle, called Bowen–Series-like maps, for geometric presentations of surface groups. The family has 2N parameters, where 2N is the number of generators of the presentation. ...

Longitudinal Prediction of Mental Health Outcomes in Vulnerable Youth using Machine Learning 

Ruiz Pujadas, Esmeralda; Díaz-Caneja, Covadonga M.; Stevanovic, Dejan; Ferrer Quintero, Marta; Martín Isla, Carlos; Hernández-González, Jerónimo; Atehortúa, Angelica; Lazrak, Noussair; Pries, Lotta; Delespaul, Philippe; Camacho, Marina; Gülöksüz, Sinan; Rutten, Bart P. F.; Lekadir, Karim (Publication date: 2025-10-08)

Mental illnesses affect almost 15% of the world's population, with half of the cases emerging before age 14. Improved methods for predicting mental distress among adolescents, particularly in vulnerable populations, are ...

Semi-algebraic geometry and generic Hamiltonian stability 

Barbieri, Santiago (Publication date: 2025-12)

The steepness property is a local geometric transversality condition on the gradient of a -function which proves fundamental in order to ensure the stability of sufficiently-regular nearly-integrable Hamiltonian systems ...

Understanding variation of antimicrobial resistance genes in two agricultural catchments in Scotland 

Pagaling, Eulyn; Palarea Albaladejo, Javier; Trojahn, Sara; Roson-Calero, natalia; Gibbs, Sheila; Cooper, Pat; Newman, Claire; Campbell, Susan; Stutter, Marc; Glendell, Miriam (Publication date: 2025-09-27)

Antimicrobial resistance (AMR) is a global public health threat as it reduces the effectiveness of drug treatments and therefore our ability to combat infections. For the first time, this study used high temporal resolution ...

The composition of gases from a diffusion flame above longleaf pine needle fuel beds 

Weise, David.R.; Fletcher, Thomas H.; Johnson, Timothy J.; Hao, Wei Min; Tonkyn, Russell G.; Banach, Catherine A.; Palarea Albaladejo, Javier; Alizadeh, Mahsa; Baker, Stephen P. (Publication date: 2026-02-15)

The gas and tar composition of a wildland fire diffusion flame from longleaf pine needles is currently relatively unmeasured and more data are needed to fill in the gap between pyrolysis data and smoke plume data, thus ...

Solving weighted Maximum Satisfiability with Branch and Bound and clause learning 

Coll Caballero, Jordi; Li, Chu-Min; Li, Shuolin; Habet, Djamal; Manyà, Felip (Publication date: 2025-11)

MaxSAT is a widely studied NP-hard optimization problem due to its broad applicability in modeling and solving diverse real-world optimization problems. Branch-and-Bound (BnB) MaxSAT solvers have proven efficient for solving ...

Using search algorithm statistics for assessing maze and puzzle difficulty 

Valenzuela Muñoz, Elio Matías; Schaa, Hans; Barriga, Nicolas A.; Patow, Gustavo (Publication date: 2025-03)

A video game’s difficulty has a large impact on player engagement. For instance, it is crucial in some genres to give the players a challenge difficult enough without frustrating them. We propose a simple method for assessing ...

The role of artificial intelligence in the assessment of the spine and spinal cord 

Martín Noguerol, Teodoro; Oñate Miranda, Marta; Amrhein, Timothy J.; Paulano Godino, Félix; Xiberta, Pau; Vilanova, Joan Carles; Luna Alcalá, Antonio (Publication date: 2023-04)

Artificial intelligence (AI) application development is underway in all areas of radiology where many promising tools are focused on the spine and spinal cord. In the past decade, multiple spine AI algorithms have been ...

La necesidad de un Manifiesto a favor de la Alfabetización Estadística 

Casals, Martí; Daunis-i-Estadella, Pepus; Galé, Carmen; Goicoa, Tomas; Patino Alonso, Maria Carmen (Publication date: 2025-03-27)

Este trabajo surge con el proposito de contextualizar el MAE (Manifiesto de la Alfabetización Estadística) y profundizar en el concepto de alfabetización estadística. El texto se estructura de la siguiente manera. En la ...

Empirical comparison of post-processing debiasing methods for machine learning classifiers in healthcare 

Dang, Vien Ngoc; Campello, Víctor M.; Hernández-González, Jerónimo; Lekadir, Karim (Publication date: 2025-03-20)

Machine learning classifiers in healthcare tend to reproduce or exacerbate existing health disparities due to inherent biases in training data. This relevant issue has brought the attention of researchers in both healthcare ...

Plasma acylcarnitines and gut-derived aromatic amino acids as sex-specific hub metabolites of the human aging metabolome 

Sol, Joaquim; Obis Monné, Èlia; Mota Martorell, Natàlia; Pradas Barriga, Irene; Galo-Licona, José Daniel; Martín Garí, Meritxell; Fernández Bernal, Anna; Ortega Bravo, Marta; Mayneris Perxachs, Jordi; Borrás, Consuelo; Viña Ribes, José; Fuente, Monica de la; Mate, Ianire; Biarnés, Carles; Pedraza, S.; Vilanova, Joan Carles; Brugada, Ramon; Ramos Blanes, Rafel; Serena, Joaquín; Ramió i Torrentà, Lluís; Pineda, Víctor; Daunis-i-Estadella, Pepus; Thió i Fernández de Henestrosa, Santiago; Barretina, Jordi; Garre Olmo, Josep; Portero Otin, Manuel; Fernández-Real Lemos, José Manuel; Puig, Josep; Jové, Mariona; Pamplona, Reinald (Publication date: 2023-06-01)

Aging biology entails a cell/tissue deregulated metabolism that affects all levels of biological organization. Therefore, the application of “omic” techniques that are closer to phenotype, such as metabolomics, to the study ...

Protective Efficacy of Decreasing Antigen Doses of a Chlamydia abortus Subcellular Vaccine Against Ovine Enzootic Abortion in a Pregnant Sheep Challenge Model 

Livingstone, Morag; Aitchison, Kevin; Palarea Albaladejo, Javier; Ciampi, Francesco; Underwood, Clare; Paladino, Antonia; Chianini, Francesca; Entrican, Gary; Wattegedera, Sean Ranjan; Longbottom, David (Publication date: 2025-01-18)

Background/Objective: Chlamydia abortus, the cause of ovine enzootic abortion, is a zoonotic bacterial pathogen and one of the most infectious causes of foetal death in sheep worldwide. Although the disease can be controlled ...

Exploring geochemical data using compositional techniques: a practical guide 

Egozcue, Juan José; Gozzi, Caterina; Buccianti, Antonella; Pawlowsky-Glahn, Vera (Publication date: 2024-03)

John Aitchison revolutionised in 1982 our way of approaching geochemical data focusing on their relative nature. In this perspective, the investigation of single variables is meaningless due to the entangled structure that ...

Structure and metabolic potential of the prokaryotic communities from the hydrothermal system of Paleochori Bay, Milos, Greece 

Le Moine Bauer, Sven; Lu, Guang-Sin; Goulaouic, Steven; Puzenat, Valentine; Schouw, Anders; Barreyre,Thibaut; Pawlowsky-Glahn, Vera; Egozcue, Juan José; Martelat, Jean-Emmanuel; Escartin, Javier; Amend, Jan P.; Nomikou, Paraskevi; Vlasopoulos, Othonas; Polymenakou, Paraskevi; Jørgensen, Steffen Leth (Publication date: 2023-01-06)

Shallow hydrothermal systems share many characteristics with their deep-sea counterparts, but their accessibility facilitates their study. One of the most studied shallow hydrothermal vent fields lies at Paleochori Bay off ...

How to choose a proper representation of compositional data for mineral exploration? 

Sadeghi, Behnam; Molayemat, Hossein; Pawlowsky-Glahn, Vera (Publication date: 2024-04)

Regional mineral exploration is based on geochemical data of which the nature is compositional and frequently involves a large number of components. Consequently, it mostly needs multivariate dimension reduction methods ...

Detrital zircon age distributions in Bayes-Hilbert spaces 

Fernández-Suárez, Javier; Pawlowsky-Glahn, Vera; Egozcue, Juan José (Publication date: 2025-06)

A growing number of researchers in the Earth Science community use the information provided by the U-Pb ages of detrital zircon in sedimentary environments, be these modern (sediments) or ancient (sedimentary or metasedimentary ...

Long-time behaviour of the correlated random walk system 

Menacho, Joaquín; Pellicer Sabadí, Marta; Solà-Morales i Rubió, Joan de (Publication date: 2025)

In this work, we consider the so-called correlated random walk system (also known as correlated motion or persistent motion system), used in biological modelling, among other fields, such as chromatography. This is a linear ...

Characterisation of protective vaccine antigens from the thiol-containing components of excretory/secretory material of Ostertagia ostertagi 

Price, Daniel R.G.; Steele, Philip; Frew, David; McLean, Kevin; Androscuk, Dorota; Geldhof, Peter; Borloo, Jimmy; Palarea Albaladejo, Javier; Nisbet, Alasdair J.; McNeilly, Tom N. (Publication date: 2024-06-01)

Previous vaccination trials have demonstrated that thiol proteins affinity purified from Ostertagia ostertagi excretory-secretory products (O. ostertagi ES-thiol) are protective against homologous challenge. Here we have ...

H2O-EduK, A Serious Game for Children to Educate on the Urban Water Cycle 

Boada, Imma; Rodríguez Benítez, Antonio; Garcia Acosta, Xavier; Acuña i Salazar, Vicenç; Corominas Tabares, Lluís (Publication date: 2024-05-27)

Various educational resources have been incorporated into school curricula to support water education and related topics. In this paper, we present and test H2O-EduK, a serious game designed to introduce the urban water ...

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