Choose year range

Search results

3451+ documents found

Comparative study of customer segmentation strategies based on business analytics

Aimar, Davide

2025Repository: UPCommons — Universitat Politècnica de Catalunya

This thesis explores a comparative analysis of customer segmentation strategies supported by advanced analytical methodologies. It focuses on two foundational frameworks: Recency, Frequency, Monetary (RFM) and Customer Lifetime Value (CLV), which respectively capture short-term…

DEFENDIFY: defense amplified with transfer learning for obfuscated malware framework

Castillo Camargo, Rodrigo · Murcia Nieto, Juan · Rojas, Nicolás + 6 authors

2025Publisher: SpringerRepository: UPCommons — Universitat Politècnica de Catalunya

The existence of malicious software (malware) represents a potential threat to users who connect to a large set of services provided by multiple providers. Such malware is capable of stealing, spying on, encrypting data from users, and spreading, provoking impacts that are…

DOI: 10.1186/s42400-025-00396-z

Avaluació del projecte d'execució de les obres del soterrament de la línia R2 de Rodalies al seu pas pel casc urbà de Montcada i Reixac

López Abadal, Albert

2025Repository: UPCommons — Universitat Politècnica de Catalunya

L’inici de les obres del soterrament de la línia R2 de Rodalies a Montcada i Reixac culmina dècades de reivindicacions ciutadanes que es remunten a la dècada dels 80. Aquestes demandes es basaven en els greus problemes de seguretat derivats dels passos a nivell, escenari de…

Towards generalizable Federated Learning in medical imaging: a real-world case study on mammography data

Tzortzis, Ioannis N. · Gutiérrez Torre, Alberto · Sykiotis, Stavros + 5 authors

2025Publisher: ElsevierRepository: UPCommons — Universitat Politècnica de Catalunya

Federated Learning has been rapidly gaining in popularity in medical applications, due to the increased privacy offered, since medical data doesn't need to leave the hospitals' premises for AI model training. However, a direct translation of a classic experiment to a federated…

DOI: 10.1016/j.csbj.2025.03.031

Stress release-induced piezoresponse in lead-free piezoceramics with high-symmetry morphotropic phase boundary

Vendrell Villafruela, Xavier · Rubio Marcos, Fernando · del Campo, Adolfo + 2 authors

2025Repository: UPCommons — Universitat Politècnica de Catalunya

The (1 - x)(Bi0.5Na0.5)TiO3-xBaTiO3 (BNT-BT) system has attracted a great deal of interest because it presents a morphotropic phase boundary (MPB) between the rhombohedral and tetragonal phases for 0.05 < x¿<¿0.08. Identifying the MPB in the BNT-BT system often results in…

DOI: 10.1063/5.0238678

Fiabilidad en componentes de electrónica de potencia

Darnell Pascual, Guillermo

2025Repository: UPCommons — Universitat Politècnica de Catalunya

El trabajo de fin de máster se centra en realizar un estudio de fiabilidad de semiconductores en un inversor trifásico para aplicaciones de tracción. En específico, este proyecto busca analizar tanto el comportamiento térmico como la fiabilidad de un MOSFET SiC, conmutando en el…

Quantifying the checkerboard problem to reduce numerical dissipation

Hopman, Johannes Arend · Santos Serrano, Daniel · Alsalti Baldellou, Àdel + 2 authors

2025Repository: UPCommons — Universitat Politècnica de Catalunya

This work provides a comprehensive exploration of various methods in solving incompressible flows using a projection method, and their relation to the occurrence and management of checkerboard oscillations. It employs an algebraic symmetry-preserving framework, clarifying the…

DOI: 10.1016/j.jcp.2024.113537