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Athanasios Voulodimos

9 accepted papers

2025

Pitfalls of Scale: Investigating the Inverse Task of Redefinition in Large Language Models

ACL 2025finding

Inverse tasks can uncover potential reasoning gaps as Large Language Models (LLMs) scale up. In this work, we explore the redefinition task, in which we assign alternative values to well-known physical constants and units of measure, prompting LLMs to respond accordingly. Our findings show that not…

Cited by 0SourcePDFScholar
2025

V-CECE: Visual Counterfactual Explanations via Conceptual Edits

NeurIPS 2025poster

Recent black-box counterfactual generation frameworks fail to take into account the semantic content of the proposed edits, while relying heavily on training to guide the generation process. We propose a novel, plug-and-play black-box counterfactual generation framework, which suggests step-by-step…

Cited by 2SourceScholar
2024

Common Corruptions for Evaluating and Enhancing Robustness in Air-to-Air Visual Object Detection

RA-L 2024

The main barrier to achieving fully autonomous flights lies in autonomous aircraft navigation. Managing non-cooperative traffic presents the most important challenge in this problem. The most efficient strategy for handling non-cooperative traffic is based on monocular video processing through deep

Cited by 16SourceScholar
2021

A Robust to Noise Adversarial Recurrent Model for Non-Intrusive Load Monitoring

ICASSP 2021accepted

The problem of separating the household aggregated power signal into its additive sub-components, called energy (power) disaggregation or Non-Intrusive Load Monitoring (NILM) can play an instrumental role as a driver towards consumer energy consumption awareness and behavioral change. In this paper,…

Cited by 0SourceScholar
2020

EnerGAN: A GENERATIVE ADVERSARIAL NETWORK FOR ENERGY DISAGGREGATION

ICASSP 2020accepted

An efficient, appliance-level approach for energy disaggregation, exploiting the benefits of Generative Adversarial Networks, is presented. The concept of adversarial training supports the creation of fine tuned dissagregators, which produce more detailed load estimations for a specific appliance, c…

Cited by 0SourceScholar
2019

A Deep-narma Filter for Unusual Behavior Detection from Visual, Thermal and Wireless Signals

ICASSP 2019accepted

Detection of unusual behavior is an important topic in signal and image processing. Because of the topic's complexity, addressing it as a solely RGB video analysis problem raises significant challenges. This has resulted in approaches that aim at exploiting different data modalities that can overcom…

Cited by 0SourceScholar
2019

Bayesian-optimized Bidirectional LSTM Regression Model for Non-intrusive Load Monitoring

ICASSP 2019accepted

In this paper, a Bayesian-optimized bidirectional Long Short -Term Memory (LSTM) method for energy disaggregation, is introduced. Energy disaggregation, or Non-Intrusive Load Monitoring (NILM), is a process aiming to identify the individual contribution of appliances in the aggregate electricity loa…

Cited by 0SourceScholar
2019

Common Mode Patterns for Supervised Tensor Subspace Learning

ICASSP 2019accepted

In this work we propose a method for reducing the dimensionality of tensor objects in a binary classification framework. The proposed Common Mode Patterns method takes into consideration the labels' information, and ensures that tensor objects that belong to different classes do not share common fea…

Cited by 0SourceScholar
2018

Tensor-Based Nonlinear Classifier for High-Order Data Analysis

ICASSP 2018accepted

In this paper we propose a tensor-based nonlinear model for high-order data classification. The advantages of the proposed scheme are that (i) it significantly reduces the number of weight parameters, and hence of required training samples, and (ii) it retains the spatial structure of the input samp…

Cited by 0SourceScholar