Using biologically inspired algorithms on 'edge devices', such as cameras and mobile phones, is what Svetlana Minakova's PhD research was all about. She conducted research on Convolutional Neural Networks(CNN). Making these algorithms work in different situations is a complicated task. 'Most design…

Partly thanks to Roy de Winter, ship design and engineering company C-Job Naval Architects now develops optimal ships in a short time. The master's student Computer Science from Leiden developed the CEGO algorithm, which eliminates the classic design cycle and makes people in the maritime optimization…

Nadine Raaphorst wrote an chapter for The Oxford Handbook of Administrative Justice about how two notions of fairness are studied in street-level bureaucracy literature and about the factors that influence how bureaucrats behave in this regard.

You would like to book a hotel room and browse the internet for which rooms and rates are an offer. The rates provided depend on forecasted demand and come about through the use of computer algorithms. However, the rates are often manually adjusted by hotel personnel. What are the consequences and how…

Every day we make use of devices, services and apps which contain algorithms that could be discriminating. These range from Facebook to self-driving cars, from the Tax Authorities to a rotating door.

Promotor: H.W. Lenstra

On September 15th a new series of lectures will start, the Joint Lectures on Evolutionary Algorithms (JoLEA). This series of events is aimed at disseminating the latest, top-quality research on EAs. The lectures will feature world-renowned speakers, local researchers, and PhD students.

On Tuesday December 19, Museum Boerhaave, the Lorentz Center and eLaw organize a public lecture on ‘Fairness and Accountability of Sociotechnical Algorithmic Systems’.

Did he dare take a gamble with his PhD research? Jeroen Methorst didn’t have to think long about it. It could fail or turn out very well. The latter is the case. Methorst developed a computer system that helps researchers find the protein they need. ‘Our whole group is now using this program.’ Methorst…

As partner within the EuDEco-poject, the Centre for Law and Digital Technologies (eLaw) organized a panel titled “Filling accountability holes in algorithmic networks” as part of the 11th annual conference on Computers, Privacy and Data Protection (CPDP), January 24-26 2018 in Brussels.

Lecture

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.

On 20 March 2019, Tim Dekkers defended his thesis 'Mobility, Control and Technology in Border Areas: Discretion and Decision-making in the Information Age'. The doctoral research was supervised by Prof. dr. J.P. van der Leun en Prof. dr. M.A.H. van der Woude.

Carlotta Rigotti, post-doc researcher at eLaw - Center for Law and Digital Technologies, and Alexandre Puttick (Bern University of Applied Science) presented some research outputs of the Horizon Europe BIAS project during the European Workshop on Algorithmic Fairness '23.

The social coalition 'Over Informatie Gesproken' (meaning ‘Speaking of Information’) recently approved eleven grant applications for research aimed at improving the information relationship between the government and the citizen. Meuwese and Çapkurt’s grant application for research into algorithmic…

In this article, Marco Cinelli, assistant professor at Leiden University College The Hague, examines proper and improper uses of Multiple Criteria Decision Analysis (MCDA) methods in energy systems analysis.

The master’s specialisation Artificial Intelligence offers future-oriented topics in computer science with a focus on machine learning, optimization algorithms, and decision support techniques.

Promotor: J. N. Kok, Co-promotor: A. J. Knobbe

This thesis is a collection of theoretical works aiming at adjusting quantum algorithms to the hardware of quantum computers.

Francien Dechesne, Associate Professor at eLaw, contributed as an expert to the advisory report of the organisation AlgorithmAudit, which was presented to the Dutch Minister for Digitalisation Alexandra van Huffelen on Wednesday 29 November 2023. The report contains a number of concrete norms to avoid…

How do we deal with large sources of greenhouse gases? Do schools provide a socially-inclusive environment for all children? And how can we protect Earth’s nature? These questions have two things in common: they are complex global challenges, and data can help answer them. Mitra Baratchi is computer…

The Leiden Ranking – Open Edition is completely transparent. The ranking compiled by the CWTS uses open data and publishes the algorithms that are used.

Promotores: J.N. Kok, H.J. Hoogeboom

In this thesis, we have studied cell images from two types of cells, including pollen grains and the immune cells, neutrophils. These images are captured using a bright field microscope and a confocal microscope.

The purpose of eLaw's Working Groups is to stimulate a productive working environment for cooperation within the Center for Law and Digital Technologies at Leiden University.

On 20 & 21 April 2017 international researchers in the field of law and society and criminology presented their work in Brussels and shared ideas on discretion and decision-making.

Promotors: Prof.dr. T.H.W. Bäck, Prof.dr. B. Sendhoff (Technische Universität Darmstadt)

To an algebraic curve C over the complex numbers one can associate a non-negative integer g, the genus, as a measure of its complexity.

In this dissertation several settings in the Online Learning framework are studied. The first chapter serves as an introduction to the relevant settings in Online Learning and in the subsequent chapters new results and insights are given for both full-information and bandit information settings.

Carlotta Rigotti and Dr Eduard Fosch-Villaronga from Leiden University presented the Horizon Europe BIAS project and its preliminary findings on fairness and diversity biases of AI applications in the labour market during the 'Algorithms for Her?' conference.

In this research note, Van der Does & Kantorowicz aruge that citizens that tend to experience political exclusion are often more supportive of direct and participatory forms of decision-making.

The research in this thesis is focused on tomographic reconstruction based on two imaging modalities in electron microscopy.

Promotores: T.H.W. Bäck, Y. Tan, Co-promotor: M.T.M. Emmerich

An algorithm is discussed to compute the exponential representation of principal units in a finite extension field F of the p-adic rationals.

The MSc programme Computer Science offers five specialisations corresponding to the research focus areas within the Leiden Institute of Advanced Computer Science. If you would like to become a qualified teacher in Computer Science or combine our studies with science communication, you can choose one…

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.