1 code implementation • 1 Apr 2024 • Ioannis Panagiotopoulos, Giorgos Filandrianos, Maria Lymperaiou, Giorgos Stamou
In this paper, we outline our submission for the SemEval-2024 Task 9 competition: 'BRAINTEASER: A Novel Task Defying Common Sense'.
1 code implementation • 1 Apr 2024 • Natalia Grigoriadou, Maria Lymperaiou, Giorgos Filandrianos, Giorgos Stamou
In this paper, we present our team's submissions for SemEval-2024 Task-6 - SHROOM, a Shared-task on Hallucinations and Related Observable Overgeneration Mistakes.
1 code implementation • 13 Mar 2024 • Christos Papadimitriou, Giorgos Filandrianos, Maria Lymperaiou, Giorgos Stamou
Story Visualization (SV) is a challenging generative vision task, that requires both visual quality and consistency between different frames in generated image sequences.
no code implementations • 11 Mar 2024 • Angeliki Dimitriou, Maria Lymperaiou, Giorgos Filandrianos, Konstantinos Thomas, Giorgos Stamou
With a focus on the visual domain, we represent images as scene graphs and obtain their GNN embeddings to bypass solving the NP-hard graph similarity problem for all input pairs, an integral part of the CE computation process.
no code implementations • 17 Feb 2024 • Panagiotis Giadikiaroglou, Maria Lymperaiou, Giorgos Filandrianos, Giorgos Stamou
Exploring the capabilities of Large Language Models (LLMs) in puzzle solving unveils critical insights into their potential and challenges in AI, marking a significant step towards understanding their applicability in complex reasoning tasks.
1 code implementation • 28 May 2023 • Edmund Dervakos, Konstantinos Thomas, Giorgos Filandrianos, Giorgos Stamou
In this work, we build on these ideas, and propose a framework that provides counterfactual explanations in terms of knowledge graphs.
1 code implementation • 26 May 2023 • Giorgos Filandrianos, Edmund Dervakos, Orfeas Menis-Mastromichalakis, Chrysoula Zerva, Giorgos Stamou
We propose a new back translation-inspired evaluation methodology that utilises earlier outputs of the explainer as ground truth proxies to investigate the consistency of explainers.
no code implementations • 2 Mar 2023 • Maria Lymperaiou, Giorgos Filandrianos, Konstantinos Thomas, Giorgos Stamou
Evaluation of generative models has been an underrepresented field despite the surge of generative architectures.
no code implementations • 9 Jan 2023 • Nikolaos Tsakas, Maria Lymperaiou, Giorgos Filandrianos, Giorgos Stamou
Story Visualization is an advanced task of computed vision that targets sequential image synthesis, where the generated samples need to be realistic, faithful to their conditioning and sequentially consistent.
Ranked #1 on Story Visualization on CLEVR-SV
1 code implementation • AAAI-MAKE 2022 • Giorgos Filandrianos, Konstantinos Thomas, Edmund Dervakos1, Giorgos Stamou1
We propose a framework for generating counterfactual explanations of black-box classifiers, which answer the question “What has to change for this to be classified as X instead of Y?” in terms of given domain knowledge.
no code implementations • AAAI-MAKE 2021 • Edmund Dervakos, Giorgos Filandrianos, Konstantinos Thomas, Alexios Mandalios, Chrysoula Zerva, Giorgos Stamou
The rapid growth of scientific literature in the biomedical and clinical domain has significantly com- plicated the identification of information of interest by researchers as well as other practitioners.
Ranked #1 on Information Retrieval on Ohsumed