no code implementations • ACL (WOAH) 2021 • Vasiliki Kougia, John Pavlopoulos
The Shared Task on Hateful Memes is a challenge that aims at the detection of hateful content in memes by inviting the implementation of systems that understand memes, potentially by combining image and textual information.
1 code implementation • 17 Jun 2024 • Vasiliki Kougia, Anastasiia Sedova, Andreas Stephan, Klim Zaporojets, Benjamin Roth
Our experiments demonstrate that LLMs struggle in the zero-shot setting performing worse than fine-tuned specialized models in terms of F1 score, showing that this is a challenging task for LLMs.
no code implementations • 5 May 2024 • Yuxi Xia, Anastasiia Sedova, Pedro Henrique Luz de Araujo, Vasiliki Kougia, Lisa Nußbaumer, Benjamin Roth
Finally, the prompt performance of detecting model memorization is quantified by the percentage of name pairs for which the model has higher confidence for the name from the training set.
1 code implementation • 28 May 2023 • Vasiliki Kougia, Simon Fetzel, Thomas Kirchmair, Erion Çano, Sina Moayed Baharlou, Sahand Sharifzadeh, Benjamin Roth
In this work, we propose to use scene graphs, that express images in terms of objects and their visual relations, and knowledge graphs as structured representations for meme classification with a Transformer-based architecture.
1 code implementation • Artificial Intelligence in Medicine 2023 • Zhendong Wang, Isak Samsten, Vasiliki Kougia, Panagiotis Papapetrou
In this paper, we propose a counterfactual solution MedSeqCF for preventing the mortality of three cohorts of ICU patients, by representing their electronic health records as medical event sequences, and generating counterfactuals by adopting and employing a text style-transfer technique.
1 code implementation • 25 Oct 2022 • Andreas Stephan, Vasiliki Kougia, Benjamin Roth
In this work, we provide a method for learning from weak labels by separating two types of complementary information associated with the labeling functions: information related to the target label and information specific to one labeling function only.
no code implementations • 18 Jan 2021 • John Pavlopoulos, Vasiliki Kougia, Ion Androutsopoulos, Dimitris Papamichail
Diagnostic Captioning (DC) concerns the automatic generation of a diagnostic text from a set of medical images of a patient collected during an examination.
1 code implementation • 11 Jun 2020 • Vasiliki Kougia, John Pavlopoulos, Panagiotis Papapetrou, Max Gordon
This paper introduces RTEx, a novel methodology for a) ranking radiography exams based on their probability to contain an abnormality, b) generating abnormality tags for abnormal exams, and c) providing a diagnostic explanation in natural language for each abnormal exam.
2 code implementations • WS 2019 • Vasiliki Kougia, John Pavlopoulos, Ion Androutsopoulos
Image captioning applied to biomedical images can assist and accelerate the diagnosis process followed by clinicians.