Search Results for author: Konstantinos Thomas

Found 6 papers, 3 papers with code

Structure Your Data: Towards Semantic Graph Counterfactuals

no code implementations11 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.

counterfactual Descriptive +1

Choose your Data Wisely: A Framework for Semantic Counterfactuals

1 code implementation28 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.

counterfactual Counterfactual Explanation +1

Fine-Grained ImageNet Classification in the Wild

1 code implementation4 Mar 2023 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.

Classification Image Classification

Counterfactual Edits for Generative Evaluation

no code implementations2 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.

counterfactual Story Visualization

Conceptual Edits as Counterfactual Explanations

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.

counterfactual Counterfactual Explanation

Semantic Enrichment of Pretrained Embedding Output for Unsupervised IR

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.

Information Retrieval Navigate

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