Matemàtiques i Informàtica: Recent submissions
Now showing items 1-20 of 1007
Evaluation metrics in medical imaging AI: fundamentals, pitfalls, misapplications, and recommendations
Robust assessment of artificial intelligence (AI) models in medical imaging is paramount for reliable clinical integration. This international collaborative review paper provides an overview of key evaluation metrics across ...
La casa de los números pequeños
Un número algebraico es un número complejo que es raíz de un polinomio con coeficientes enteros. Estos números forman un cuerpo que se denota por $\overline{\mathbb{Q}}$, que es el lugar natural donde se encuentran soluciones ...
An assessment of the European Patient Summary for clinical research: a case study in cardiology
Introduction: The European Health Data Space (EHDS) initiative was launched to create a unified framework for health data exchange across Europe. Central to this initiative is the European Electronic Health Record Exchange ...
New imaging signatures of cardiac alterations in ischaemic heart disease and cerebrovascular disease using CMR radiomics
Background: Ischaemic heart disease (IHD) and cerebrovascular disease are two closely inter-related clinical entities. Cardiovascular magnetic resonance (CMR) radiomics may capture subtle cardiac changes associated with ...
Cardiac magnetic resonance radiomics reveal differential impact of sex, age, and vascular risk factors on cardiac structure and myocardial tissue
Background: Cardiovascular magnetic resonance (CMR) radiomics analysis provides multiple quantifiers of ventricular shape and myocardial texture, which may be used for detailed cardiovascular phenotyping. Objectives: We ...
Boundedness for proper conflict-free and odd colorings.
The proper conflict-free chromatic number, $\chi_{\mathrm{pcf}}(G)$, of a graph $G$ is the least positive integer $k$ such that $G$ has a proper $k$-coloring in which for each non-isolated vertex there is a color appearing ...
Vascular surgery study of the CGuard MicroNet-covered stent in patients with indication to carotid revascularization: POLGUARD
BACKGROUND: In a recent randomized study, MicroNet-covered stent (CGuard) significantly reduced procedural and post-procedural cerebral embolism in relation to a single-layer CREST study carotid stent, but real-life clinical ...
DeBasher: a flow-based programming bash extension for the implementation of complex and interactive workflows with stateful processes
Background: Bioinformatics data analysis faces significant challenges. As data analysis often takes the form of pipelines or workflows, workflow managers (WfMs) have become essential. Data flow programming constitutes the ...
Strict rearrangement inequalities: nonexpansivity and periodic Gagliardo semi-norms
This paper deals with the behavior of the periodic Gagliardo seminorm under two types of rearrangements, namely under a periodic, and respectively a cylindrical, symmetric decreasing rearrangement. Our two main results are ...
Inter-and Intraobserver Variability in Bowel Preparation Scoring for Colon Capsule Endoscopy: Impact of AI-Assisted Assessment Feasibility Study
This study assessed the reliability of AI-assisted bowel cleansing scoring in colon capsule endoscopy using the CC-CLEAR scale. While interobserver agreement was excellent with manual scoring among experienced readers, ...
Periodic solutions to integro-differential equations: variational formulation, symmetry, and regularity
We consider nonconstant periodic constrained minimizers of semilinear elliptic equations for integro-differential operators in $\mathbb{R}$. We prove that, after an appropriate translation, each of them is necessarily an ...
On the Arnold Diffusion Mechanism in Medium Earth Orbit
Space debris mitigation guidelines represent the most effective method to preserve the circumterrestrial environment. Among them, end-of-life disposal solutions play a key role. In this regard, effective strategies should ...
On the Paraconsistent Companions of Involutive Fuzzy Logics that Preserve Non-falsity
<p>It is known that most systems of fuzzy logic trivialise in the</p><p>presence of contradictory information of the type {φ, ¬φ}, since with the</p><p>standard truth-preserving [0, 1]-valued semantics, there is no ...
Instanton bundles vs Ulrich bundles on projective spaces
We relate the existence of rank $r$ Ulrich bundles on a Veronese 3-fold $\left(\mathbb{P}^3, \mathcal{O}_{\mathbb{P}^3}(d)\right)$ with the existence of rank $r$ instanton bundles on $\mathbb{P}^3$. This relation will allow ...
Clifford's theorem for coherent systems on surfaces with Kodaira dimension $\kappa \leq 0$
Let $X$ be a smooth irreducible projective surface with Kodaira dimension $\kappa \leq 0$. The aim of this paper is to establish a version of Clifford's theorem for coherent systems on $X$.
Brill-Noether theory of stable vector bundles on ruled surfaces
Let $X$ be a ruled surface over a nonsingular curve $C$ of genus $g \geq 0$. Let $M_H:=M_{X, H}\left(2 ; c_1, c_2\right)$ be the moduli space of $H$-stable rank 2 vector bundles $E$ on $X$ with fixed Chern classes $c_i:=c_i(E)$ ...
Degree-preserving Gödel logics with an involution: intermediate logics and (ideal) paraconsistency
In this paper, we study intermediate logics between the logic $\mathrm{G}_{\sim}^{\leq}$, the degree-preserving companion of Gödel fuzzy logic with involution $\mathrm{G}_{\sim}$, and classical propositional logic CPL, as ...
Structural completeness in many-valued logics with rational constants
The logics $\mathbf{R} \mathbf{\L}, \mathbf{R} \mathbf{P}$, and $\mathbf{R G}$ have been obtained by expanding $\{L}$ukasiewicz logic $\mathbf{L}$, product logic $\mathbf{P}$, and Gödel-Dummett logic $\mathbf{G}$ with ...
On the Non-falsity and Threshold Preserving Variants of MTL Logics
In this paper we study the definition and axiomatisation of non-falsity preserving and threshold preserving companions of several extensions of the Monoidal t-norm based fuzzy logic MTL. More in detail, we first extend ...
