Fast deep convolutional face detection in the wild exploiting hard sample mining

D Triantafyllidou, P Nousi, A Tefas - Big data research, 2018 - Elsevier
Face detection constitutes a key visual information analysis task in Machine Learning. The
rise of Big Data has resulted in the accumulation of a massive volume of visual data which …

Deep autoencoders for attribute preserving face de-identification

P Nousi, S Papadopoulos, A Tefas, I Pitas - Signal Processing: Image …, 2020 - Elsevier
The mass availability of mobile devices equipped with cameras has lead to increased public
privacy concerns in recent years. Face de-identification is a necessary first step towards …

Hybrid neurofuzzy investigation of short-term variability of wind resource in site suitability analysis: a case study in South Africa

PA Adedeji, SA Akinlabi, N Madushele… - Neural Computing and …, 2021 - Springer
Energy generation from wind resources is now a mature technology with the ability to
compete with traditional energy sources at utility scales in many countries, through the …

A deep learning model for fault diagnosis with a deep neural network and feature fusion on multi-channel sensory signals

Q Ye, S Liu, C Liu - Sensors, 2020 - mdpi.com
Collecting multi-channel sensory signals is a feasible way to enhance performance in the
diagnosis of mechanical equipment. In this article, a deep learning method combined with …

Self-supervised autoencoders for clustering and classification

P Nousi, A Tefas - Evolving Systems, 2020 - Springer
Clustering techniques aim at finding meaningful groups of data samples which exhibit
similarity with regards to a set of characteristics, typically measured in terms of pairwise …

Manifold regularized stacked denoising autoencoders with feature selection

J Yu - Neurocomputing, 2019 - Elsevier
This paper proposes a new stacked denoising autoencoders (SDAE), called manifold
regularized SDAE (MRSDAE) based on particle swarm optimization (PSO), where manifold …

Deep multi-view learning to rank

G Cao, A Iosifidis, M Gabbouj… - … on Knowledge and …, 2019 - ieeexplore.ieee.org
We study the problem of learning to rank from multiple information sources. Though multi-
view learning and learning to rank have been studied extensively leading to a wide range of …

Autoencoder-driven spiral representation learning for gravitational wave surrogate modelling

P Nousi, SC Fragkouli, N Passalis, P Iosif… - Neurocomputing, 2022 - Elsevier
Recently, artificial neural networks have been gaining momentum in the field of gravitational
wave astronomy, for example in surrogate modelling of computationally expensive …

Concept detection and face pose estimation using lightweight convolutional neural networks for steering drone video shooting

N Passalis, A Tefas - 2017 25th European Signal Processing …, 2017 - ieeexplore.ieee.org
Unmanned Aerial Vehicles, also known as drones, are becoming increasingly popular for
video shooting tasks since they are capable of capturing spectacular aerial shots. Deep …

Machine Learning Applications in Gravitational Wave Astronomy

N Stergioulas - Compact Objects in the Universe, 2024 - Springer
Gravitational wave astronomy has emerged as a new branch of observational astronomy,
since the first detection of gravitational waves in 2015. The current number of O (100) …