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Analyzing and finding anomalies in multi-dimensional datasets is a cumbersome but vital task across different domains. In the context of financial fraud detection, analysts must quickly identify suspicious activity among transactional data. This is a
Externí odkaz:
http://arxiv.org/abs/2410.00727
State of the art models in intent induction require annotated datasets. However, annotating dialogues is time-consuming, laborious and expensive. In this work, we propose a completely unsupervised framework for intent induction within a dialogue. In
Externí odkaz:
http://arxiv.org/abs/2307.15410
This paper concludes the study, initiated by the authors in arXiv:2007.07211, of the Teukolsky equation of spin $\pm 1$ and spin $\pm 2$ on Kerr backgrounds in the full subextremal range of parameters $|a| < M$. In our previous arXiv:2007.07211, we o
Externí odkaz:
http://arxiv.org/abs/2302.08916
Autor:
Palmeiro, João, Malveiro, Beatriz, Costa, Rita, Polido, David, Moreira, Ricardo, Bizarro, Pedro
Machine learning on data streams is increasingly more present in multiple domains. However, there is often data distribution shift that can lead machine learning models to make incorrect decisions. While there are automatic methods to detect when dri
Externí odkaz:
http://arxiv.org/abs/2204.14025
Autor:
Costa, Rita Santos de Pinho
Estágio realizado no Grupo Bosch - e orientado pelo Eng. Vítor Valera
Tese de mestrado integrado. Engenharia Mecânica. Faculdade de Engenharia. Universidade do Porto. 2013
Tese de mestrado integrado. Engenharia Mecânica. Faculdade de Engenharia. Universidade do Porto. 2013
Externí odkaz:
http://hdl.handle.net/10216/69302
Dissertação apresentada para obtenção do grau de Mestre em Tecnologia Multimédia, na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Professor Doutor Alfredo Soeiro
Externí odkaz:
http://hdl.handle.net/10216/11824
Autor:
Guerra, André, da Costa, Rita Teixeira
In 1989, Burnett conjectured that, under appropriate assumptions, the limit of highly oscillatory solutions to the Einstein vacuum equations is a solution of the Einstein--massless Vlasov system. In a recent breakthrough, Huneau--Luk (arXiv:1907.1074
Externí odkaz:
http://arxiv.org/abs/2107.00942
Autor:
Casals, Marc, da Costa, Rita Teixeira
We uncover hidden spectral symmetries of the Teukolsky equation in Kerr(-de Sitter) black holes, recently conjectured by Aminov, Grassi and Hatsuda (arXiv: 2006.06111 and arXiv: 2007.07906, 2020) in the zero cosmological constant case. Using these sy
Externí odkaz:
http://arxiv.org/abs/2105.13329
Autor:
da Costa, Rita Teixeira, Casals, Marc
Publikováno v:
Classical and Quantum Gravity, 38:165016 (2020)
The Teukolsky Master Equation describes the dynamics of massless fields with spin on a Kerr black hole. Under separation of variables, spin-reversal for this equation is accomplished through the so-called Teukolsky--Starobinsky identities. These iden
Externí odkaz:
http://arxiv.org/abs/2102.06734