Institution profile

University of Ljubljana

Academic institutioneurope · si
Official website
Research library173linked papers
Opportunities0open roles
Selected work

Representative Papers

ID-Booth: Identity-consistent Face Generation with Diffusion Models

Apr 10, 2025

Existing diffusion models for face synthesis suffer from a fundamental trade-off between identity consistency and generation diversity: optimizing solely for image quality often compromises identity fidelity, whereas identity-supervised training tends to overfit. This paper proposes ID-Booth—a novel framework that decouples identity representation from the generative process without fine-tuning the backbone diffusion model. It introduces a first-of-its-kind triplet-based identity training objective, jointly optimizing generation quality, identity preservation, and semantic controllability. Built upon a latent diffusion model (LDM), ID-Booth integrates a VAE, text encoder, and a customized denoising network to enable both text-guided and identity-anchored synthesis. Experiments demonstrate significant improvements across multiple benchmarks: +12.7% intra-class identity consistency, +9.3% inter-class separability, and +21% image diversity. Moreover, it enhances few-shot face recognition performance without requiring access to original face data.

1 citations1 influentialRead paper

A Review of the Negative Effects of Digital Technology on Cognition

Feb 23, 2026arXiv.org

This study addresses the unclear mechanisms underlying the negative cognitive impacts of digital technologies by conducting a scoping review of 937 articles using hybrid retrieval and citation snowballing. It proposes the "AI erosion of higher-order cognition" hypothesis and the "efficiency-atrophy paradox," systematically elucidating four underlying mechanisms. The findings reveal an evolutionary trajectory of cognitive risk shifting from resource interference to the erosion of higher-order cognition. By synthesizing nearly one thousand publications, this research establishes a comprehensive theoretical framework for the field, providing critical scholarly support and a novel paradigm for understanding cognitive degradation in human-AI collaboration.

1 citationsRead paper

Mi\'{c}i Princ -- A Little Boy Teaching Speech Technologies the Chakavian Dialect

Feb 03, 2026

This study addresses the scarcity of structured speech–text aligned data for the endangered Chakavian dialect, which has hindered its integration into artificial intelligence applications. We present the first high-quality, word-aligned multimodal dataset of *The Little Prince* in Chakavian, comprising synchronized text, images, and audio, meticulously curated through manual alignment and publicly released via the CLARIN.SI platform. Fine-tuning the Whisper-large-v3 model on this dataset yields substantial improvements in automatic speech recognition performance, reducing the word error rate by 50% and the character error rate by approximately two-thirds on the test set. This work establishes a reproducible data paradigm and technical framework for AI-driven preservation of endangered dialects.

1 citationsRead paper

Delaunay Triangulations with Predictions

Jan 13, 2026Information Technology Convergence and Services

This work introduces, for the first time, a prediction-augmented algorithmic framework to computational geometry, specifically targeting the efficient computation of two-dimensional Delaunay triangulations (DT). Given a point set \( P \) and a predicted triangulation \( G \) that approximates the true DT, the paper proposes an adaptive correction algorithm based on an edge-difference metric \( D \), a violation measure \( d_{\text{vio}} \), and a randomized sampling probability \( \rho \). The main contributions include a deterministic algorithm running in \( O(n + D \log^3 n) \) time and an optimal randomized algorithm with expected time \( O(n + D \log n) \). Under a stochastic model combining edge inclusion and violation degrees, the approach further yields an almost-linear-time solution, which is also extended to related problems such as the Euclidean minimum spanning tree.

1 citationsRead paper
Recent publications

Latest Papers