Search Results for author: Giuseppe Nicosia

Found 9 papers, 4 papers with code

Deep Neural Networks via Complex Network Theory: a Perspective

no code implementations17 Apr 2024 Emanuele La Malfa, Gabriele La Malfa, Giuseppe Nicosia, Vito Latora

For the novel metrics, in addition to the existing ones, we provide a mathematical formalisation for Fully Connected, AutoEncoder, Convolutional and Recurrent neural networks, of which we vary the activation functions and the number of hidden layers.

Fragility, Robustness and Antifragility in Deep Learning

no code implementations15 Dec 2023 Chandresh Pravin, Ivan Martino, Giuseppe Nicosia, Varun Ojha

We define three \textit{filtering scores} for quantifying the fragility, robustness and antifragility characteristics of DNN parameters based on the performances for (i) clean dataset, (ii) adversarial dataset, and (iii) the difference in performances of clean and adversarial datasets.

Adaptive search space decomposition method for pre- and post- buckling analyses of space truss structures

no code implementations14 Nov 2022 Varun Ojha, Bartolomeo Panto, Giuseppe Nicosia

The paper proposes a novel adaptive search space decomposition method and a novel gradient-free optimization-based formulation for the pre- and post-buckling analyses of space truss structures.

Deep Neural Networks as Complex Networks

no code implementations12 Sep 2022 Emanuele La Malfa, Gabriele La Malfa, Claudio Caprioli, Giuseppe Nicosia, Vito Latora

Deep Neural Networks are, from a physical perspective, graphs whose `links` and `vertices` iteratively process data and solve tasks sub-optimally.

Assessing Ranking and Effectiveness of Evolutionary Algorithm Hyperparameters Using Global Sensitivity Analysis Methodologies

1 code implementation11 Jul 2022 Varun Ojha, Jon Timmis, Giuseppe Nicosia

We present a comprehensive global sensitivity analysis of two single-objective and two multi-objective state-of-the-art global optimization evolutionary algorithms as an algorithm configuration problem.

Evolutionary Algorithms

Backpropagation Neural Tree

1 code implementation4 Feb 2022 Varun Ojha, Giuseppe Nicosia

We propose a novel algorithm called Backpropagation Neural Tree (BNeuralT), which is a stochastic computational dendritic tree.

Descriptive Image Classification

Adversarial Robustness in Deep Learning: Attacks on Fragile Neurons

no code implementations31 Jan 2022 Chandresh Pravin, Ivan Martino, Giuseppe Nicosia, Varun Ojha

In this paper, we evaluate the robustness of state-of-the-art image classification models trained on the MNIST and CIFAR10 datasets against the fast gradient sign method attack, a simple yet effective method of deceiving neural networks.

Adversarial Attack Adversarial Robustness +1

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