Quantum annealing belongs to a family of quantum optimization algorithms designed to solve combinatorial optimization problems using programmable quantum hardware. In this thesis, various methods are developed and tested to understand how to formulate combinatorial optimization problems for quantum…

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The thesis introduces three methods for high-dimensional prediction problems in the biomedical field. The methods make use of empirical and variational Bayes in the estimation.

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Discover "Meta Analysis" at Leiden University. Read more here.

Discover "Meta Analysis" at Leiden University. Read more here.

Healthcare Information Systems (HIS) are essential for modern healthcare delivery, yet their development faces significant challenges including heterogeneous data formats, regulatory compliance, and the growing demand for AI-driven decision support.

Promotores: Prof.dr. J. Zaanen, Prof.dr. K.E. Schalm

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M. Bongards (Cologne University)

Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.

In design optimization problems, engineers typically handcraft design representations based on personal expertise, which leaves a fingerprint of the user experience in the optimization data. Thus, learning this notion of experience as transferrable design features has potential to improve the performance…

All the data stored and processed by our computers is encoded as sequences of zeros and ones, called bits. Quantum computers offer an alternative to this traditional way of encoding and manipulating information.

Promotor: A.W. van der Vaart

We show that Kirchhoff ’s law of conservation holds for non-commutative graph flows if and only if the graph is planar. We generalize the theory of (Euclidean) lattices to infinite dimension and consider the ring of algebraic integers as such a lattice.

Statistical distributions in LCA and converting between different representations of these distributions.

Promotor: Prof.dr. P. Stevenhagen, Co-Promotor: J.H. Evertse

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The Economics and Governance specialisation of the Master in Public Administration teaches you to formulate problem-solving approaches to concrete policy issues found at the intersection between economics and public administration. This specialisation is a unique joint offering of the Department of…

In dit boek reconstrueert Bart van der Steen alle grote acties en campagnes van de Leidse SP-afdeling in de jaren zeventig. Hij laat zien hoe de partij zich ontwikkelde van een kleine maar enthousiaste groep revolutionairen naar een lokaal gewortelde actiepartij.

Dit onderzoek presenteert een vijfstappenplan voor de ontwikkeling van een effectieve gedragsgerichte cyberveiligheidsstrategie.

Julia Prümmer, Tommy van Steen en Bibi van den Berg evalueren de effectiviteit van cybersecuritytrainingen voor eindgebruikers.

This article provides a list of the concepts and key elements that should be considered when creating effective communication messages.

A neurocognitive investigation of the development of social performance monitoring in youth growing up in stressful versus non-stressful environments

The thesis is part of a bigger project, the HEPGAME (High Energy Physics Game). The main objective for HEPGAME is the utilization of AI solutions, particularly by using MCTS for simplification of HEP calculations.

The research presented in this thesis concerns one of the most important questions in software engineering of our time: how can we make sure that software is free from memory safety bugs?

In this dissertation non-parametric Bayesian methods are used in the application of robotic vision.

This thesis describes how complex and real-world relevant analytical solutions can be found starting from a simple Nagumo problem posed on one or two-dimensional lattices.

This thesis is is made of three parts. The first part describes a generalization of the Chabauty's method, that can be used to determine the rational points of a curve such that s+g>r+1, where g is the genusof the curve, r is the rank of the Mordell-Weil group of the jacobian of the curve and s is…

My PhD research is devoted to studies of the conjectural cluster-algebraic symmetry in the theory of topological string, which is the simplest, however already non-trivial sector in the theory of string.

Like a mixture of oil and water, lipid membranes separate into two liquid phases.

This thesis mainly focuses on multimodal understanding and Visual Question Answering (VQA) via deep learning methods. For technical contributions, this thesis first focuses on improving multimodal fusion schemes via multi-stage vision-language interactions.

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

Quantum computers are a proposed fundamentally new type of computer. They aim to perform some computations much faster than previously possible by exploiting phenomena at the quantum scale, called superposition and entanglement.

Data Science (DS) and Artificial Intelligence (AI) are omni-present and have the potential to be incorporated in various fields. However, in order to live up to this expectation, a good understanding of the techniques, their implications and limitations is required. In this minor you develop insights…

The main theme of this thesis is the theoretical study of Gaussian processes as a tool in Bayesian nonparametric statistics.

These syntheses allow the team to determine the extent to which schools-based interventions are effective at targeting radicalisation-related outcomes.

In deze vuistdikke bundel vertellen meer dan honderd Nederlandse onderzoekers het wereldwijde verhaal van de Nederlandse geschiedenis

Venus is de tweede planeet vanaf de zon en staat op 108 miljoen kilometer. Een jaar op Venus is korter dan op aarde en duurt maar 225 dagen. Doordat Venus heel langzaam om haar as draait, duurt een dag juist langer, wel 117 aarddagen! Op Venus is je alien dus elke twee dagen jarig.

Prof.dr. Bibi van den Berg is aangesloten bij de leergang Cybersecurity. Zij is hoogleraar Cybersecurity Governance en hoofd van de onderzoeksgroep Cybersecurity Governance.

Hoe hebben humanitaire organisaties voorbereidings- en responsstrategieën voor cyberincidenten afgestemd op hun specifieke prioriteiten, behoeften en context?

Speeches en toespraken zijn cruciaal geweest bij het oplossen van de vraag die centraal staat in elk politiek debat: wie krijgt wat, wanneer en waar?

Netwerk en projecten duurzaamheid verduurzaming green office en green team

Een lijst met wetenschappelijke publicaties samengesteld door het team van het TRIXY Expertisecentrum.

Neptunus is de achtste planeet vanaf de zon en staat op een afstand van 4,5 miljard kilometer. Hij staat zo ver af van de zon dat het wel 165 jaar duurt voordat Neptunus een rondje om de zon heeft gedraaid. Een dag op Neptunus is korter dan op aarde: in maar 16 uur draait Neptunus een rondje om zijn…

Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Universite Bordeaux I)

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