Centrum Wiskunde & Informatica

Rao-Blackwellized e-variables

Summary We show that for any concave utility, the expected utility of an e-variable can only increase after conditioning on a sufficient statistic, echoing the classic Rao-Blackwell theorem. The simplest form of the result has a straightforward proof using Jensen’s inequality, bu...

Meromorphic differentials and twisted DR hierarchies for the Hodge CohFT

Abstract In [4], two families of classical and quantum integrable hierarchies associated to arbitrary Cohomological Field Theories (CohFTs) were introduced: the meromorphic differential and twisted double ramification hierarchies. For trivial CohFT, the authors established a conn...

Exploring out-of-distribution detection for sparse-view computed tomography with diffusion models

Abstract Recent works demonstrate the effectiveness of diffusion models as unsupervised solvers for inverse imaging problems. Sparse-view computed tomography (CT) has greatly benefited from these advancements, achieving improved generalization without reliance on measurement para...

From search agents to dissemination interfaces: understanding human trust in health information from conversational search

Large Language Models (LLMs) deployed through Conversational User Interfaces (CUIs) are transforming health information-seeking by offering immediate, interactive experiences compared to traditional search engines like Google. However, how trust is influenced by both the types of...

A novel framework to modelling regulation of prey populations by a generalist predator

Abstract Background In ecological communities, a predator often feeds on several food sources. Such a predator is known as a generalist, and its feeding is traditionally modelled by a functional response. However, the conventional concept of the functional response is not applica...

E-values as statistical evidence: a comparison to Bayes factors, likelihoods, and p-values

Abstract A recurring debate in the philosophy of statistics concerns what, exactly, should count as a measure of evidence for or against a given hypothesis. P-values, likelihood ratios, and Bayes factors all have their defenders. In this paper we add two additional candidates to...

One (Noisy) Bit to Rule Them All: Key Recovery from Randomness Leakage in ML-DSA

Abstract The Fiat-Shamir transform is one of the most widely applied methods for secure signature construction. Fiat-Shamir starts with an interactive zero-knowledge identification protocol and transforms this via a hash function into a non-interactive signature. The protocol’s z...

High prevalence of low faecal elastase levels in individuals with type 1 diabetes is associated with diabetes duration but not with marked alterations in food intake or clinical symptoms

Abstract Aims/hypothesis Although exocrine pancreatic insufficiency (EPI) is thought to be common in type 1 diabetes, little is known about the relationship of EPI with type 1 diabetes parameters or food intake and abdominal complaints. Characterising individuals with EPI could h...

Elective admissions and treatments in the final three months of life: a nationwide retrospective study of older adults

PURPOSE: Research on potentially inappropriate care at the end of life in older adults rarely distinguishes between acute and elective care. As elective care is plannable, it allows for timely deliberation on its appropriateness. This study aimed to explore elective hospital care...