ABACUS Repository

Institutional repository of the Universidad Europea where the scientific production of its research community is collected. The purpose of the repository is to provide access and visibility to this work by gathering, preserving and disseminating this production.

 

Recent Submissions

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Divergence-driven generative adversarial networks for semi-supervised anomaly detection
(2026) García Fernández, Manuel; Salmerón Silvera, José Luis
Anomaly detection is a critical challenge due to the extreme class imbalance between anomalous and normal data instances. This study presents a semi-supervised anomaly detection framework based on GANs, in which the discriminator is repurposed as a direct classifier for anomaly detection. This research advances the application of GANs in anomaly detection by introducing a divergence-driven training paradigm and validating its effectiveness through extensive experimentation with credit card fraud data and Twitter bot accounts.
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Between development and control: State-sponsored emigration under Francoist rule
(2026) Maravall, Laura; Meseguer, Covadonga; Muñiz Mejuto, Ángel
This paper examines assisted emigration policies under Francoist rule (1939–1975) and assesses the extent to which emigration served regime survival. Using provincial-level data between 1964 and 1976, the study investigates whether the Spanish Emigration Institute (IEE), created in 1956, employed emigration as a safety valve for unemployment and political dissent.

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