Search Results for author: João Correia

Found 11 papers, 4 papers with code

Reducing the Price of Stable Cable Stayed Bridges with CMA-ES

no code implementations2 Apr 2023 Gabriel Fernandes, Nuno Lourenço, João Correia

There are two objectives when designing the bridges: minimizing the cost and maintaining the structural constraints in acceptable values to be considered safe.

Automatic Design of Telecom Networks with Genetic Algorithms

no code implementations2 Apr 2023 João Correia, Gustavo Gama, João Tiago Guerrinha, Ricardo Cadime, Pedro Antero Carvalhido, Tiago Vieira, Nuno Lourenço

An AI-based solution is proposed to automate network design, which is a task typically done manually by teams of engineers.

Exploring Generative Adversarial Networks for Text-to-Image Generation with Evolution Strategies

1 code implementation6 Jul 2022 Victor Costa, Nuno Lourenço, João Correia, Penousal Machado

In this work, we follow a different direction by proposing the use of Covariance Matrix Adaptation Evolution Strategy to explore the latent space of Generative Adversarial Networks.

Text-to-Image Generation

Speed Benchmarking of Genetic Programming Frameworks

no code implementations25 May 2021 Francisco Baeta, João Correia, Tiago Martins, Penousal Machado

Genetic Programming (GP) is known to suffer from the burden of being computationally expensive by design.

Benchmarking

TensorGP -- Genetic Programming Engine in TensorFlow

1 code implementation12 Mar 2021 Francisco Baeta, João Correia, Tiago Martins, Penousal Machado

In this paper, we resort to the TensorFlow framework to investigate the benefits of applying data vectorization and fitness caching methods to domain evaluation in Genetic Programming.

Demonstrating the Evolution of GANs through t-SNE

no code implementations31 Jan 2021 Victor Costa, Nuno Lourenço, João Correia, Penousal Machado

Evolutionary algorithms, such as COEGAN, were recently proposed as a solution to improve the GAN training, overcoming common problems that affect the model, such as vanishing gradient and mode collapse.

Evolutionary Algorithms

Exploring the Evolution of GANs through Quality Diversity

1 code implementation13 Jul 2020 Victor Costa, Nuno Lourenço, João Correia, Penousal Machado

We compare our proposal with the original COEGAN model and with an alternative version using a global competition approach.

Evolutionary Algorithms

Using Skill Rating as Fitness on the Evolution of GANs

no code implementations9 Apr 2020 Victor Costa, Nuno Lourenço, João Correia, Penousal Machado

Recent works proposed the use of evolutionary algorithms on GAN training, aiming to solve these challenges and to provide an automatic way to find good models.

Evolutionary Algorithms

COEGAN: Evaluating the Coevolution Effect in Generative Adversarial Networks

1 code implementation12 Dec 2019 Victor Costa, Nuno Lourenço, João Correia, Penousal Machado

COEGAN is a model that uses neuroevolution and coevolution in the GAN training algorithm to provide a more stable training method and the automatic design of neural network architectures.

Automatic Design of Artificial Neural Networks for Gamma-Ray Detection

no code implementations9 May 2019 Filipe Assunção, João Correia, Rúben Conceição, Mário Pimenta, Bernardo Tomé, Nuno Lourenço, Penousal Machado

The results show that the best CNN generated by Fast-DENSER++ improves by a factor of 2 when compared with the results reported by classic statistical approaches.

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