Search Results for author: Rianne de Heide

Found 7 papers, 1 papers with code

Top Two Algorithms Revisited

no code implementations13 Jun 2022 Marc Jourdan, Rémy Degenne, Dorian Baudry, Rianne de Heide, Emilie Kaufmann

Top Two algorithms arose as an adaptation of Thompson sampling to best arm identification in multi-armed bandit models (Russo, 2016), for parametric families of arms.

Thompson Sampling Vocal Bursts Valence Prediction

Attribution-based Explanations that Provide Recourse Cannot be Robust

no code implementations31 May 2022 Hidde Fokkema, Rianne de Heide, Tim van Erven

Finally, we strengthen our impossibility result for the restricted case where users are only able to change a single attribute of $x$, by providing an exact characterization of the functions $f$ to which impossibility applies.

Attribute BIG-bench Machine Learning +1

Bandits with many optimal arms

no code implementations NeurIPS 2021 Rianne de Heide, James Cheshire, Pierre Ménard, Alexandra Carpentier

We characterize the optimal learning rates both in the cumulative regret setting, and in the best-arm identification setting in terms of the problem parameters $T$ (the budget), $p^*$ and $\Delta$.

Fixed-Confidence Guarantees for Bayesian Best-Arm Identification

no code implementations24 Oct 2019 Xuedong Shang, Rianne de Heide, Emilie Kaufmann, Pierre Ménard, Michal Valko

We investigate and provide new insights on the sampling rule called Top-Two Thompson Sampling (TTTS).

Thompson Sampling

Safe-Bayesian Generalized Linear Regression

no code implementations21 Oct 2019 Rianne de Heide, Alisa Kirichenko, Nishant Mehta, Peter Grünwald

We study generalized Bayesian inference under misspecification, i. e. when the model is 'wrong but useful'.

Bayesian Inference regression

Safe Testing

1 code implementation18 Jun 2019 Peter Grünwald, Rianne de Heide, Wouter Koolen

We develop the theory of hypothesis testing based on the e-value, a notion of evidence that, unlike the p-value, allows for effortlessly combining results from several studies in the common scenario where the decision to perform a new study may depend on previous outcomes.

Two-sample testing

Optional Stopping with Bayes Factors: a categorization and extension of folklore results, with an application to invariant situations

no code implementations24 Jul 2018 Allard Hendriksen, Rianne de Heide, Peter Grünwald

It is often claimed that Bayesian methods, in particular Bayes factor methods for hypothesis testing, can deal with optional stopping.

Two-sample testing

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