no code implementations • 28 Aug 2021 • Loris Nanni, Alessandro Manfe, Gianluca Maguolo, Alessandra Lumini, Sheryl Brahnam
The best performing ensemble, which combined the CNNs using the different augmentation methods and the two new Adam variants proposed here, achieved state of the art on both insect data sets: 95. 52% on Deng and 73. 46% on IP102, a score on Deng that competed with human expert classifications.
no code implementations • 2 Apr 2021 • Alessandra Lumini, Loris Nanni, Gianluca Maguolo
The basic architecture in image segmentation consists of an encoder and a decoder: the first uses convolutional filters to extract features from the image, the second is responsible for generating the final output.
no code implementations • 29 Mar 2021 • Loris Nanni, Gianluca Maguolo, Sheryl Brahnam, Michelangelo Paci
Because activation functions inject different nonlinearities between layers that affect performance, varying them is one method for building robust ensembles of CNNs.
no code implementations • 26 Mar 2021 • Loris Nanni, Gianluca Maguolo, Alessandra Lumini
In this work, we compare Adam based variants based on the difference between the present and the past gradients, the step size is adjusted for each parameter.
no code implementations • 24 Nov 2020 • Loris Nanni, Alessandra Lumini, Stefano Ghidoni, Gianluca Maguolo
In this paper we classify biomedical images using ensembles of neural networks.
no code implementations • 11 Nov 2020 • Loris Nanni, Eugenio De Luca, Marco Ludovico Facin, Gianluca Maguolo
The set of handcrafted is mainly based on Local Binary Pattern variants, for each descriptor a different Support Vector Machine is trained, then the set of classifiers is combined by sum rule.
no code implementations • 15 Jul 2020 • Loris Nanni, Gianluca Maguolo, Sheryl Brahnam, Michelangelo Paci
The best performing ensembles combining data augmentation techniques with different signal representations are compared and shown to outperform the best methods reported in the literature on these datasets.
9 code implementations • 27 Apr 2020 • Gianluca Maguolo, Loris Nanni
In this paper, we compare and evaluate different testing protocols used for automatic COVID-19 diagnosis from X-Ray images in the recent literature.
no code implementations • 16 Dec 2019 • Loris Nanni, Gianluca Maguolo, Michelangelo Paci
To the best of our knowledge this is the largest study on data augmentation for CNNs in animal audio classification audio datasets using the same set of classifiers and parameters.
1 code implementation • 11 Dec 2019 • Gianluca Maguolo, Michelangelo Paci, Loris Nanni, Ludovico Bonan
Audio data augmentation is a key step in training deep neural networks for solving audio classification tasks.
no code implementations • 1 Oct 2019 • Loris Nanni, Gianluca Maguolo, Fabio Pancino
Our best ensembles reaches the state of the art accuracy on both the smaller dataset (92. 43%) and the IP102 dataset (61. 93%), approaching the performance of human experts on the smaller one.
no code implementations • 15 Aug 2019 • Alessandra Lumini, Loris Nanni, Gianluca Maguolo
We study how to create an ensemble based of different CNN models, fine tuned on several datasets with the aim of exploiting their diversity.
no code implementations • 7 May 2019 • Gianluca Maguolo, Loris Nanni, Stefano Ghidoni
The goal of this work is to propose an ensemble of Convolutional Neural Networks trained using several different activation functions.