no code implementations • 14 Mar 2024 • Georgia Papacharalampous, Hristos Tyralis, Nikolaos Doulamis, Anastasios Doulamis
This demonstrates the potential of stacking to improve probabilistic predictions in spatial interpolation and beyond.
no code implementations • 9 Feb 2024 • Ioannis N. Tzortzis, Konstantinos Makantasis, Ioannis Rallis, Nikolaos Bakalos, Anastasios Doulamis, Nikolaos Doulamis
We repeat the student training procedure by providing the assistance of the teacher model this time.
no code implementations • 13 Nov 2023 • Georgia Papacharalampous, Hristos Tyralis, Nikolaos Doulamis, Anastasios Doulamis
Compared to QR, LightGBM showed improved performance with respect to the quantile scoring rule by 11. 10%, followed by QRF (7. 96%), GRF (7. 44%), GBM (4. 64%) and QRNN (1. 73%).
no code implementations • 9 Jul 2023 • Georgia Papacharalampous, Hristos Tyralis, Nikolaos Doulamis, Anastasios Doulamis
In this context, satellite precipitation and topography data are the predictor variables, and gauged-measured precipitation data are the dependent variables.
no code implementations • 2 Mar 2023 • Iason Katsamenis, Eftychios Protopapadakis, Nikolaos Bakalos, Anastasios Doulamis, Nikolaos Doulamis, Athanasios Voulodimos
Recent studies indicate that deep learning plays a crucial role in the automated visual inspection of road infrastructures.
no code implementations • 2 Feb 2023 • Hristos Tyralis, Georgia Papacharalampous, Nikolaos Doulamis, Anastasios Doulamis
To improve precipitation estimates, machine learning is applied to merge rain gauge-based measurements and gridded satellite precipitation products.
no code implementations • 31 Dec 2022 • Georgia Papacharalampous, Hristos Tyralis, Anastasios Doulamis, Nikolaos Doulamis
Still, information on which tree-based ensemble algorithm to select for correcting satellite precipitation products for the contiguous United States (US) at the daily time scale is missing from the literature.
no code implementations • 17 Dec 2022 • Georgia Papacharalampous, Hristos Tyralis, Anastasios Doulamis, Nikolaos Doulamis
To provide results that are generalizable and to contribute to the delivery of best practices, we here compare eight state-of-the-art machine learning algorithms in correcting satellite precipitation data for the entire contiguous United States and for a 15-year period.
no code implementations • 17 Nov 2022 • Stavros Sykiotis, Christoforos Menos-Aikateriniadis, Anastasios Doulamis, Nikolaos Doulamis, Pavlos S. Georgilakis
Power sector decarbonization plays a vital role in the upcoming energy transition towards a more sustainable future.
no code implementations • 20 Sep 2022 • Agapi Davradou, Eftychios Protopapadakis, Maria Kaselimi, Anastasios Doulamis, Nikolaos Doulamis
Diabetic foot ulcers (DFUs) constitute a serious complication for people with diabetes.
no code implementations • 5 Jul 2022 • Maria Kaselimi, Eftychios Protopapadakis, Athanasios Voulodimos, Nikolaos Doulamis, Anastasios Doulamis
Non-intrusive load monitoring (NILM) is the task of disaggregating the total power consumption into its individual sub-components.
no code implementations • 5 Jul 2022 • Ioannis N. Tzortzis, Ioannis Rallis, Konstantinos Makantasis, Anastasios Doulamis, Nikolaos Doulamis, Athanasios Voulodimos
In Cultural Heritage, hyperspectral images are commonly used since they provide extended information regarding the optical properties of materials.
1 code implementation • 24 May 2022 • Iason Katsamenis, Eleni Eirini Karolou, Agapi Davradou, Eftychios Protopapadakis, Anastasios Doulamis, Nikolaos Doulamis, Dimitris Kalogeras
In this work, the YOLOv5 algorithm is employed, in order to find a solution for the efficient and fast detection of traffic cones.
1 code implementation • MDPI Sensors 2022 • Stavros Sykiotis, Maria Kaselimi, Anastasios Doulamis, Nikolaos Doulamis
Sequence-to-sequence deep learning models have been firmly established as state-of-the-art approaches for NILM, in an attempt to identify the pattern of the appliance power consumption signal into the aggregated power signal.
no code implementations • 2 Jul 2021 • Charalampos Zafeiropoulos, Ioannis N. Tzortzis, Ioannis Rallis, Eftychios Protopapadakis, Nikolaos Doulamis, Anastasios Doulamis
In the context of this paper, we detect the level of decomposition and corrosion on the walls of Saint Nicholas fort in Rhodes utilizing hyperspectral images.
no code implementations • 11 Apr 2021 • Konstantinos Makantasis, Alexandros Georgogiannis, Athanasios Voulodimos, Ioannis Georgoulas, Anastasios Doulamis, Nikolaos Doulamis
We hereby propose the Rank-R Feedforward Neural Network (FNN), a tensor-based nonlinear learning model that imposes Canonical/Polyadic decomposition on its parameters, thereby offering two core advantages compared to typical machine learning methods.
no code implementations • 26 Nov 2020 • Eftychios Protopapadakis, Anastasia Garbi, Anna Malamou, Maria Kaselimi, Zisis Pontikas, Anastasios Doulamis, Nikolaos Doulamis, Kostas Vasilakis, Nassos Michas, Emmanouel Alexakis
In this paper we provide an analytical methodology to handle such scenarios and create year-long hourly-based consumption baseline.
no code implementations • 12 Aug 2020 • Iason Katsamenis, Eftychios Protopapadakis, Anastasios Doulamis, Nikolaos Doulamis, Athanasios Voulodimos
Corrosion detection on metal constructions is a major challenge in civil engineering for quick, safe and effective inspection.
no code implementations • 30 May 2020 • Eftychios Protopapadakis, Anastasios Doulamis, Nikolaos Doulamis, Evangelos Maltezos
A combinatory approach of two well-known fields: deep learning and semi supervised learning is presented, to tackle the land cover identification problem.
no code implementations • 17 Apr 2020 • Konstantinos Makantasis, Athanasios Voulodimos, Anastasios Doulamis, Nikolaos Bakalos, Nikolaos Doulamis
Recent advances in sensing technologies require the design and development of pattern recognition models capable of processing spatiotemporal data efficiently.
no code implementations • 6 Feb 2019 • Konstantinos Makantasis, Anastasios Doulamis, Nikolaos Doulamis, Athanasios Voulodimos
In this work we propose a method for reducing the dimensionality of tensor objects in a binary classification framework.
no code implementations • 15 Feb 2018 • Konstantinos Makantasis, Anastasios Doulamis, Nikolaos Doulamis, Antonis Nikitakis, Athanasios Voulodimos
We also introduce a new learning algorithm to train the model, and we evaluate the \textit{Rank}-1 FNN on third-order hyperspectral data.
no code implementations • 24 Sep 2017 • Konstantinos Makantasis, Anastasios Doulamis, Nikolaos Doulamis, Antonis Nikitakis
Then, we introduce learning algorithms to train both the linear and the non-linear classifier in a way to i) to minimize the error over the training samples and ii) the weight coefficients satisfies the {\it rank}-1 canonical decomposition property.
no code implementations • 31 Jul 2016 • Konstantinos Makantasis, Antonis Nikitakis, Anastasios Doulamis, Nikolaos Doulamis, Yannis Papaefstathiou
Detection of moving objects in videos is a crucial step towards successful surveillance and monitoring applications.
1 code implementation • 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2015 • Konstantinos Makantasis, Konstantinos Karantzalos, Anastasios Doulamis, Nikolaos Doulamis
Our method exploits a Convolutional Neural Network to encode pixels' spectral and spatial information and a Multi-Layer Perceptron to conduct the classification task.
no code implementations • 29 Jun 2015 • Konstantinos Makantasis, Anastasios Doulamis, Nikolaos Doulamis
We propose a Gaussian mixture model for background subtraction in infrared imagery.