Search Results for author: Dimitris Askounis

Found 14 papers, 1 papers with code

Data-driven building energy efficiency prediction using physics-informed neural networks

no code implementations14 Nov 2023 Vasilis Michalakopoulos, Sotiris Pelekis, Giorgos Kormpakis, Vagelis Karakolis, Spiros Mouzakitis, Dimitris Askounis

On top of this neural network, a function, based on physics equations, calculates the energy consumption of the building based on heat losses and enhances the loss function of the deep learning model.

Multimodal Detection of Social Spambots in Twitter using Transformers

no code implementations28 Aug 2023 Loukas Ilias, Ioannis Michail Kazelidis, Dimitris Askounis

Next, we propose a multimodal approach, where we use TwHIN-BERT for getting the textual representation of the user description field and employ VGG16 for acquiring the visual representation for the image modality.

Misinformation

DeepTSF: Codeless machine learning operations for time series forecasting

1 code implementation28 Jul 2023 Sotiris Pelekis, Evangelos Karakolis, Theodosios Pountridis, George Kormpakis, George Lampropoulos, Spiros Mouzakitis, Dimitris Askounis

DeepTSF automates key aspects of the ML lifecycle, making it an ideal tool for data scientists and MLops engineers engaged in machine learning (ML) and deep learning (DL)-based forecasting.

Load Forecasting Management +2

Calibration of Transformer-based Models for Identifying Stress and Depression in Social Media

no code implementations26 May 2023 Loukas Ilias, Spiros Mouzakitis, Dimitris Askounis

To resolve the above issues, we present the first study in the task of depression and stress detection in social media, which injects extra linguistic information in transformer-based models, namely BERT and MentalBERT.

Neural Architecture Search with Multimodal Fusion Methods for Diagnosing Dementia

no code implementations12 Feb 2023 Michail Chatzianastasis, Loukas Ilias, Dimitris Askounis, Michalis Vazirgiannis

To the best of our knowledge, there is no prior work exploiting a NAS approach and these fusion methods in the task of dementia detection from spontaneous speech.

Neural Architecture Search

A Multimodal Approach for Dementia Detection from Spontaneous Speech with Tensor Fusion Layer

no code implementations8 Nov 2022 Loukas Ilias, Dimitris Askounis, John Psarras

However, existing state-of-the-art works proposing multimodal approaches do not take into consideration the inter- and intra-modal interactions and propose early and late fusion approaches.

Comparison of Missing Data Imputation Methods using the Framingham Heart study dataset

no code implementations6 Oct 2022 Konstantinos Psychogyios, Loukas Ilias, Dimitris Askounis

Cardiovascular disease (CVD) is a class of diseases that involve the heart or blood vessels and according to World Health Organization is the leading cause of death worldwide.

Imputation

Detecting Dementia from Speech and Transcripts using Transformers

no code implementations27 Oct 2021 Loukas Ilias, Dimitris Askounis, John Psarras

Concurrently, little work has been done in terms of both the usage of transformer networks and the way the two modalities, i. e., speech and transcripts, are combined in a single neural network.

Electroencephalogram (EEG)

Explainable Identification of Dementia from Transcripts using Transformer Networks

no code implementations14 Sep 2021 Loukas Ilias, Dimitris Askounis

Alzheimer's disease (AD) is the main cause of dementia which is accompanied by loss of memory and may lead to severe consequences in peoples' everyday life if not diagnosed on time.

Binary Classification Multi-Task Learning

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