João Manuel de Freitas Xavier
AuthID: R-000-73Q
1
TITLE: A Multi-Token Coordinate Descent Method for Semi-Decentralized Vertical Federated Learning
AUTHORS: Valdeira, Pedro; Chi, Yuejie; Soares, Claudia; Xavier, Joao;
PUBLISHED: 2026, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 74
AUTHORS: Valdeira, Pedro; Chi, Yuejie; Soares, Claudia; Xavier, Joao;
PUBLISHED: 2026, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 74
2
TITLE: Outlier-Resilient Model Fitting via Percentile Losses: Methods for General and Convex Residuals Full Text
AUTHORS: Domingos, Joao; Xavier, Joao;
PUBLISHED: 2025, SOURCE: IEEE SIGNAL PROCESSING LETTERS, VOLUME: 32
AUTHORS: Domingos, Joao; Xavier, Joao;
PUBLISHED: 2025, SOURCE: IEEE SIGNAL PROCESSING LETTERS, VOLUME: 32
3
TITLE: Communication-Efficient Vertical Federated Learning via Compressed Error Feedback
AUTHORS: Valdeira, Pedro; Xavier, Joao; Soares, Claudia; Chi, Yuejie;
PUBLISHED: 2025, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 73
AUTHORS: Valdeira, Pedro; Xavier, Joao; Soares, Claudia; Chi, Yuejie;
PUBLISHED: 2025, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 73
INDEXED IN: 
Scopus 
WOS
Scopus WOS4
TITLE: Robust Target Localization in 2D: A Value-at-Risk Approach
AUTHORS: Domingos, Joao; Xavier, Joao;
PUBLISHED: 2024, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 72
AUTHORS: Domingos, Joao; Xavier, Joao;
PUBLISHED: 2024, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 72
5
TITLE: Communication-efficient Vertical Federated Learning via Compressed Error Feedback Full Text
AUTHORS: Valdeira, Pedro; Xavier, Joao; Soares, Claudia; Chi, Yuejie;
PUBLISHED: 2024, SOURCE: 32nd European Signal Processing Conference (EUSIPCO) in 32ND EUROPEAN SIGNAL PROCESSING CONFERENCE, EUSIPCO 2024, VOLUME: 73
AUTHORS: Valdeira, Pedro; Xavier, Joao; Soares, Claudia; Chi, Yuejie;
PUBLISHED: 2024, SOURCE: 32nd European Signal Processing Conference (EUSIPCO) in 32ND EUROPEAN SIGNAL PROCESSING CONFERENCE, EUSIPCO 2024, VOLUME: 73
6
TITLE: A Pseudo-CMOS bootstrap DIGOTA in a 600nm Flexible IGZO Technology
AUTHORS: Sousa, Diogo; Marcelino, Joao; Santos, Angelo; Viana, Hugo; Xavier, Joao; Barquinha, Pedro; Toledo, Pedro; Crovetti, Paolo;
PUBLISHED: 2024, SOURCE: 2024 IEEE International Flexible Electronics Technology Conference in 2024 IEEE INTERNATIONAL FLEXIBLE ELECTRONICS TECHNOLOGY CONFERENCE, IFETC 2024
AUTHORS: Sousa, Diogo; Marcelino, Joao; Santos, Angelo; Viana, Hugo; Xavier, Joao; Barquinha, Pedro; Toledo, Pedro; Crovetti, Paolo;
PUBLISHED: 2024, SOURCE: 2024 IEEE International Flexible Electronics Technology Conference in 2024 IEEE INTERNATIONAL FLEXIBLE ELECTRONICS TECHNOLOGY CONFERENCE, IFETC 2024
INDEXED IN: Scopus WOS
Scopus WOS7
TITLE: Distributed Banach-Picard Iteration: Application to Distributed Parameter Estimation and PCA
AUTHORS: Andrade, Francisco; Figueiredo, Mario A. T. ; Xavier, Joao;
PUBLISHED: 2023, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 71
AUTHORS: Andrade, Francisco; Figueiredo, Mario A. T. ; Xavier, Joao;
PUBLISHED: 2023, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 71
8
TITLE: Distributed Banach-Picard Iteration for Locally Contractive Maps
AUTHORS: Andrade, Francisco; Figueiredo, Mario A. T. ; Xavier, Joao;
PUBLISHED: 2023, SOURCE: IEEE TRANSACTIONS ON AUTOMATIC CONTROL, VOLUME: 68, ISSUE: 2
AUTHORS: Andrade, Francisco; Figueiredo, Mario A. T. ; Xavier, Joao;
PUBLISHED: 2023, SOURCE: IEEE TRANSACTIONS ON AUTOMATIC CONTROL, VOLUME: 68, ISSUE: 2
9
TITLE: Robust Localization With Bounded Noise: Creating a Superset of the Possible Target Positions via Linear-Fractional Representations
AUTHORS: Domingos, Joao; Soares, Claudia; Xavier, Joao;
PUBLISHED: 2022, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 70
AUTHORS: Domingos, Joao; Soares, Claudia; Xavier, Joao;
PUBLISHED: 2022, SOURCE: IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOLUME: 70
10
TITLE: Towards Speaker Verification for Crowdsourced Speech Collections
AUTHORS: Mendonca, John; Correia, Rui; Lourenco, Mariana; Freitas, Joao; Trancoso, Isabel;
PUBLISHED: 2022, SOURCE: 13th International Conference on Language Resources and Evaluation (LREC) in LREC 2022: THIRTEEN INTERNATIONAL CONFERENCE ON LANGUAGE RESOURCES AND EVALUATION
AUTHORS: Mendonca, John; Correia, Rui; Lourenco, Mariana; Freitas, Joao; Trancoso, Isabel;
PUBLISHED: 2022, SOURCE: 13th International Conference on Language Resources and Evaluation (LREC) in LREC 2022: THIRTEEN INTERNATIONAL CONFERENCE ON LANGUAGE RESOURCES AND EVALUATION
INDEXED IN: WOS
WOS