Search Results for author: Christoffer Riis

Found 6 papers, 2 papers with code

Bayesian Active Learning for Censored Regression

no code implementations19 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).

Active Learning regression

Applied metamodelling for ATM performance simulations

no code implementations7 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.

Active Learning Decision Making +1

Learning and Generalizing Polynomials in Simulation Metamodeling

1 code implementation20 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.

Epidemiology Inductive Bias

Bayesian Active Learning with Fully Bayesian Gaussian Processes

2 code implementations20 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.

Active Learning Gaussian Processes

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