activity
20172026
most citedAn extension of SPARQL for expressing qualitative preferences

16 citations · 20 across the 9 of their papers we have counts for

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6 papers · 1 filter

cs.AI2026

FrED: External Data Influence Estimation via Domain Knowledge Graph Grounding

Theodoros Aivalis, Iraklis A. Klampanos, Antonis Troumpoukis +1

The rapid deployment of generative AI has amplified the critical need for Training Data Attribution to ensure transparency and accountability. However, current parametric approache…

cs.AI2025

Training Data Attribution for Image Generation using Ontology-Aligned Knowledge Graphs

Theodoros Aivalis, Iraklis A. Klampanos, Antonis Troumpoukis +1

As generative models become powerful, concerns around transparency, accountability, and copyright violations have intensified. Understanding how specific training data contributes…

cs.AI2025

Bridging Ethical Principles and Algorithmic Methods: An Alternative Approach for Assessing Trustworthiness in AI Systems

Michael Papademas, Xenia Ziouvelou, Antonis Troumpoukis +1

Artificial Intelligence (AI) technology epitomizes the complex challenges posed by human-made artifacts, particularly those widely integrated into society and exerting significant…

cs.AI2025

Enhancing Interpretability in Generative AI Through Search-Based Data Influence Analysis

Theodoros Aivalis, Iraklis A. Klampanos, Antonis Troumpoukis +1

Generative AI models offer powerful capabilities but often lack transparency, making it difficult to interpret their output. This is critical in cases involving artistic or copyrig…

cs.AI2021★ 1 cited

A Logical Characterization of the Preferred Models of Logic Programs with Ordered Disjunction

Angelos Charalambidis, Panos Rondogiannis, Antonis Troumpoukis

Logic Programs with Ordered Disjunction (LPODs) extend classical logic programs with the capability of expressing alternatives with decreasing degrees of preference in the heads of…

cs.AI2020★ 2 cited

Lexicographic Logic: a Many-valued Logic for Preference Representation

Angelos Charalambidis, Giorgos Papadimitriou, Panos Rondogiannis +1

Logical formalisms provide a natural and concise means for specifying and reasoning about preferences. In this paper, we propose lexicographic logic, an extension of classical prop…