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International revenue share fraud prediction on the 5G edge using federated lea...

Ferreira, Luís Fernando Faria; Silva, Leopoldo; Morais, Francisco; Martins, Carlos Manuel; Pires, Pedro Miguel; Rodrigues, Helena; Cortez, Paulo

Edge computing and multi-access edge computing (MEC) are two recent paradigms of distributed computing that are growing due to the rise of the fifth-generation (5G) of broadband cellular networks. The development of edge computing and MEC architectures involves the hosting of applications close to the end-users, allowing: an improved privacy, given that critical data is not shared with other systems; a reduced ...


A federated machine learning approach to detect international revenue share fra...

Ferreira, Luís; Silva, Leopoldo; Pinho, Diana; Morais, Francisco; Martins, Carlos Manuel; Pires, Pedro Miguel; Fidalgo, Pedro; Rodrigues, Helena

The fifth-generation (5G) of broadband cellular networks is giving rise to new paradigms of distributed computing, such as Edge Computing and Multi-access Edge Computing (MEC). The possibility of hosting Machine Learning (ML) applications close to the end-users presents advantages, such as better privacy (e.g., sensitive data is not shared to other systems), the reduction of communication latency, improvement o...


A Comparison of AutoML Tools for Machine Learning, Deep Learning and XGBoost

Ferreira, Luís; Pilastri, André Luiz; Martins, Carlos Manuel; Pires, Pedro Miguel; Cortez, Paulo

This paper presents a benchmark of supervised Automated Machine Learning (AutoML) tools. Firstly, we an- alyze the characteristics of eight recent open-source AutoML tools (Auto-Keras, Auto-PyTorch, Auto-Sklearn, AutoGluon, H2O AutoML, rminer, TPOT and TransmogrifAI) and describe twelve popular OpenML datasets that were used in the benchmark (divided into regression, binary and multi-class classification tasks)...



In-house localization for Wi-Fi coverage diagnostics

Martins, Carlos Manuel; Moreira, Adriano; Ferreira, Ricardo; Meneses, Filipe

Telecommunication operators and Internet Service Providers often face the problem of having residential customers complaining about deficient Wi-Fi coverage inside their houses and/or about the low quality of service while accessing the Internet. Addressing these complaints properly involves a comprehensive in-house diagnostic of the technical deployment, the use of specialized equipment and visits by qualified...




Peste e literatura : a construção narrativa de uma catástrofe

Martins, Carlos Manuel

Dissertação de mestrado em Estudos Anglo-Americanos, apresentada à Faculdade de Letras da Universidade de Coimbra; A presente dissertação tem por objectivo estudar a construção de narrativas sobre uma epidemia (real ou imaginária) na literatura ocidental. Será feita uma análise literária que faça sobressair o papel da peste numa obra, em detrimento de uma preocupação com a veracidade dos factos. Procura-se estu...


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