Search Results for author: Efthymios Georgiou

Found 8 papers, 3 papers with code

PowMix: A Versatile Regularizer for Multimodal Sentiment Analysis

no code implementations19 Dec 2023 Efthymios Georgiou, Yannis Avrithis, Alexandros Potamianos

Multimodal sentiment analysis (MSA) leverages heterogeneous data sources to interpret the complex nature of human sentiments.

Multimodal Sentiment Analysis

SeqAug: Sequential Feature Resampling as a modality agnostic augmentation method

no code implementations3 May 2023 Efthymios Georgiou, Alexandros Potamianos

Data augmentation is a prevalent technique for improving performance in various machine learning applications.

Data Augmentation

Alternating Objectives Generates Stronger PGD-Based Adversarial Attacks

no code implementations15 Dec 2022 Nikolaos Antoniou, Efthymios Georgiou, Alexandros Potamianos

Designing powerful adversarial attacks is of paramount importance for the evaluation of $\ell_p$-bounded adversarial defenses.

Adversarial Attack

Regotron: Regularizing the Tacotron2 architecture via monotonic alignment loss

no code implementations28 Apr 2022 Efthymios Georgiou, Kosmas Kritsis, Georgios Paraskevopoulos, Athanasios Katsamanis, Vassilis Katsouros, Alexandros Potamianos

Recent deep learning Text-to-Speech (TTS) systems have achieved impressive performance by generating speech close to human parity.

MMLatch: Bottom-up Top-down Fusion for Multimodal Sentiment Analysis

1 code implementation24 Jan 2022 Georgios Paraskevopoulos, Efthymios Georgiou, Alexandros Potamianos

Current deep learning approaches for multimodal fusion rely on bottom-up fusion of high and mid-level latent modality representations (late/mid fusion) or low level sensory inputs (early fusion).

Ranked #7 on Multimodal Sentiment Analysis on CMU-MOSEI (using extra training data)

Multimodal Sentiment Analysis

AudioVisual Speech Synthesis: A brief literature review

no code implementations18 Feb 2021 Efthymios Georgiou, Athanasios Katsamanis

This brief literature review studies the problem of audiovisual speech synthesis, which is the problem of generating an animated talking head given a text as input.

Speech Synthesis

End-to-end Generative Zero-shot Learning via Few-shot Learning

1 code implementation8 Feb 2021 Georgios Chochlakis, Efthymios Georgiou, Alexandros Potamianos

In this work, we introduce Z2FSL, an end-to-end generative ZSL framework that uses such an approach as a backbone and feeds its synthesized output to a Few-Shot Learning (FSL) algorithm.

Few-Shot Learning Zero-Shot Learning

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