activity
20232026
most citedFine-Grained ImageNet Classification in the Wild

1 citations · 2 across the 10 of their papers we have counts for

collaborators

11 papers

cs.CL2026

SemEval-2026 Task 6: CLARITY -- Unmasking Political Question Evasions

Konstantinos Thomas, Giorgos Filandrianos, Maria Lymperaiou +2

Political speakers often avoid answering questions directly while maintaining the appearance of responsiveness. Despite its importance for public discourse, such strategic evasion…

q-fin.TR2025

ATLAS: Adaptive Trading with LLM AgentS Through Dynamic Prompt Optimization and Multi-Agent Coordination

Charidimos Papadakis, Angeliki Dimitriou, Giorgos Filandrianos +3

Large language models show promise for financial decision-making, yet deploying them as autonomous trading agents raises fundamental challenges: how to adapt instructions when rewa…

cs.CV2025

V-CECE: Visual Counterfactual Explanations via Conceptual Edits

Nikolaos Spanos, Maria Lymperaiou, Giorgos Filandrianos +3

Recent black-box counterfactual generation frameworks fail to take into account the semantic content of the proposed edits, while relying heavily on training to guide the generatio…

cs.CE2025

StockSim: A Dual-Mode Order-Level Simulator for Evaluating Multi-Agent LLMs in Financial Markets

Charidimos Papadakis, Giorgos Filandrianos, Angeliki Dimitriou +3

We present StockSim, an open-source simulation platform for systematic evaluation of large language models (LLMs) in realistic financial decision-making scenarios. Unlike previous…

cs.CL2025

Bias Beware: The Impact of Cognitive Biases on LLM-Driven Product Recommendations

Giorgos Filandrianos, Angeliki Dimitriou, Maria Lymperaiou +2

The advent of Large Language Models (LLMs) has revolutionized product recommenders, yet their susceptibility to adversarial manipulation poses critical challenges, particularly in…

cs.SD2024★ 1 cited

CHORDONOMICON: A Dataset of 666,000 Songs and their Chord Progressions

Spyridon Kantarelis, Konstantinos Thomas, Ioannis Liolitsas +3

Chord progressions encapsulate important information about music, pertaining to its structure and conveyed emotions. They serve as the backbone of musical composition, and in many…

cs.CL2024

"I Never Said That": A dataset, taxonomy and baselines on response clarity classification

Konstantinos Thomas, Giorgos Filandrianos, Maria Lymperaiou +2

Equivocation and ambiguity in public speech are well-studied discourse phenomena, especially in political science and analysis of political interviews. Inspired by the well-grounde…

cs.CV2024

Structure Your Data: Towards Semantic Graph Counterfactuals

Angeliki Dimitriou, Maria Lymperaiou, Giorgos Filandrianos +2

Counterfactual explanations (CEs) based on concepts are explanations that consider alternative scenarios to understand which high-level semantic features contributed to particular…

cs.AI2023

Choose your Data Wisely: A Framework for Semantic Counterfactuals

Edmund Dervakos, Konstantinos Thomas, Giorgos Filandrianos +1

Counterfactual explanations have been argued to be one of the most intuitive forms of explanation. They are typically defined as a minimal set of edits on a given data sample that,…

cs.CV2023★ 1 cited

Fine-Grained ImageNet Classification in the Wild

Maria Lymperaiou, Konstantinos Thomas, Giorgos Stamou

Image classification has been one of the most popular tasks in Deep Learning, seeing an abundance of impressive implementations each year. However, there is a lot of criticism tied…

cs.CV2023

Counterfactual Edits for Generative Evaluation

Maria Lymperaiou, Giorgos Filandrianos, Konstantinos Thomas +1

Evaluation of generative models has been an underrepresented field despite the surge of generative architectures. Most recent models are evaluated upon rather obsolete metrics whic…