no code implementations • 19 Feb 2024 • Frederik Boe Hüttel, Christoffer Riis, Filipe Rodrigues, Francisco Câmara Pereira
To address this, we derive the entropy and the mutual information for censored distributions and derive the BALD objective for active learning in censored regression ($\mathcal{C}$-BALD).
no code implementations • 7 Aug 2023 • Christoffer Riis, Francisco N. Antunes, Tatjana Bolić, Gérald Gurtner, Andrew Cook, Carlos Lima Azevedo, Francisco Câmara Pereira
Lastly, we discuss two practical approaches for reducing the computational burden of the metamodelling further: we introduce a stopping criterion for active learning based on the inherent uncertainty of the metamodel, and we show how the simulations used for the metamodel can be reused across key performance indicators, thus decreasing the overall number of simulations needed.
1 code implementation • 20 Jul 2023 • Jesper Hauch, Christoffer Riis, Francisco C. Pereira
The ability to learn polynomials and generalize out-of-distribution is essential for simulation metamodels in many disciplines of engineering, where the time step updates are described by polynomials.
no code implementations • 29 Mar 2023 • Mayte Cano, Andrés Perillo, Juan Antonio López, Faustino Tello, Javier Poveda, Francisco Câmara, Francisco Antunes, Christoffer Riis, Ian Crook, Abderrazak Tibichte, Sandrine Molton, David Mocholí, Ricardo Herranz, Gérald Gurtner, Tatjana Bolić, Andrew Cook, Jovana Kuljanin, Xavier Prats
This White Paper sets out to explain the value that metamodelling can bring to air traffic management (ATM) research.
2 code implementations • 20 May 2022 • Christoffer Riis, Francisco Antunes, Frederik Boe Hüttel, Carlos Lima Azevedo, Francisco Câmara Pereira
In active learning, where labeled data is scarce or difficult to obtain, neglecting this trade-off can cause inefficient and non-optimal querying, leading to unnecessary data labeling.
no code implementations • 26 Apr 2020 • Christoffer Riis, Damian Konrad Kowalczyk, Lars Kai Hansen
In this paper, we revisit the popularity prediction on Instagram.