Search Results for author: Giorgos Filandrianos

Found 20 papers, 14 papers with code

BERTtime Stories: Investigating the Role of Synthetic Story Data in Language pre-training

no code implementations20 Oct 2024 Nikitas Theodoropoulos, Giorgos Filandrianos, Vassilis Lyberatos, Maria Lymperaiou, Giorgos Stamou

To measure the effect of synthetic story data, we train LTG-BERT encoder models on a combined dataset of: a subset of TinyStories, story completions generated by GPT-Neo, and a subset of the BabyLM dataset.

Language Modelling

RISCORE: Enhancing In-Context Riddle Solving in Language Models through Context-Reconstructed Example Augmentation

1 code implementation24 Sep 2024 Ioannis Panagiotopoulos, Giorgos Filandrianos, Maria Lymperaiou, Giorgos Stamou

Riddle-solving requires advanced reasoning skills, pushing LLMs to engage in abstract thinking and creative problem-solving, often revealing limitations in their cognitive abilities.

Multiple-choice Sentence

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

1 code implementation20 Sep 2024 Konstantinos Thomas, Giorgos Filandrianos, Maria Lymperaiou, Chrysoula Zerva, Giorgos Stamou

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

GOSt-MT: A Knowledge Graph for Occupation-related Gender Biases in Machine Translation

no code implementations17 Sep 2024 Orfeas Menis Mastromichalakis, Giorgos Filandrianos, Eva Tsouparopoulou, Dimitris Parsanoglou, Maria Symeonaki, Giorgos Stamou

This paper introduces a novel approach to studying occupation-related gender bias through the creation of the GOSt-MT (Gender and Occupation Statistics for Machine Translation) Knowledge Graph.

Machine Translation Translation

Enhancing adversarial robustness in Natural Language Inference using explanations

1 code implementation11 Sep 2024 Alexandros Koulakos, Maria Lymperaiou, Giorgos Filandrianos, Giorgos Stamou

The surge of state-of-the-art Transformer-based models has undoubtedly pushed the limits of NLP model performance, excelling in a variety of tasks.

Adversarial Robustness Natural Language Inference +1

Prompt2Fashion: An automatically generated fashion dataset

1 code implementation10 Sep 2024 Georgia Argyrou, Angeliki Dimitriou, Maria Lymperaiou, Giorgos Filandrianos, Giorgos Stamou

Despite the provided fine-grained insights on the quality and relevance of generation, we extend the discussion on the importance of expert knowledge for the evaluation of artistic AI-generated datasets such as this one.

Optimal and efficient text counterfactuals using Graph Neural Networks

1 code implementation4 Aug 2024 Dimitris Lymperopoulos, Maria Lymperaiou, Giorgos Filandrianos, Giorgos Stamou

As NLP models become increasingly integral to decision-making processes, the need for explainability and interpretability has become paramount.

counterfactual Decision Making +3

Automatic Generation of Fashion Images using Prompting in Generative Machine Learning Models

1 code implementation20 Jul 2024 Georgia Argyrou, Angeliki Dimitriou, Maria Lymperaiou, Giorgos Filandrianos, Giorgos Stamou

Emphasizing adaptability in AI-driven fashion creativity, we depart from traditional approaches and focus on prompting techniques, such as zero-shot and few-shot learning, as well as Chain-of-Thought (CoT), which results in a variety of colors and textures, enhancing the diversity of the outputs.

Diversity Few-Shot Learning +2

Semantic Prototypes: Enhancing Transparency Without Black Boxes

1 code implementation18 Jul 2024 Orfeas Menis-Mastromichalakis, Giorgos Filandrianos, Jason Liartis, Edmund Dervakos, Giorgos Stamou

As machine learning (ML) models and datasets increase in complexity, the demand for methods that enhance explainability and interpretability becomes paramount.

Decision Making Informativeness

AILS-NTUA at SemEval-2024 Task 6: Efficient model tuning for hallucination detection and analysis

1 code implementation1 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.

Binary Classification Hallucination +1

Masked Generative Story Transformer with Character Guidance and Caption Augmentation

1 code implementation13 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.

Language Modelling Large Language Model +1

Structure Your Data: Towards Semantic Graph Counterfactuals

1 code implementation11 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

Puzzle Solving using Reasoning of Large Language Models: A Survey

no code implementations17 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.

Logical Reasoning Survey

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

Counterfactuals of Counterfactuals: a back-translation-inspired approach to analyse counterfactual editors

1 code implementation26 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.

counterfactual

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

An Impartial Transformer for Story Visualization

no code implementations9 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.

Image Generation 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

Cannot find the paper you are looking for? You can Submit a new open access paper.