How do opinions form and change in large groups of people? That's not just a sociological question, it's a mathematical one. PhD candidate Federico Capannoli studied opinion dynamics. He defended his thesis on November 19.

On 20 November 2025, eLaw hosted the second capacity-building session of the BIAS project, coinciding with the city’s first snowfall of the year. The training brought together HR practitioners, scholars, consultants, and policymakers to discuss the opportunities and challenges of using AI systems in…

On 28 and 29 May, Carlotta Rigotti, postdoctoral researcher at eLaw, held a workshop on fairness and diversity bias in AI-driven recruitment at the annual symposium of the Japanese Society on Artificial Intelligence (JSAI) in Hamamatsu, Japan. The workshop was organised as part of the BIAS project in…

Carlotta Rigotti, Postdoc researcher at eLaw, and Eduard Fosch-Villaronga, Associate Professor at eLaw, delivered a lecture on AI and non-discrimination, engaging students with the Debiaser demo.

The LUF International Study Fund (LISF) will make changes to its allocation process following an investigation into diversity in its grants policy. This investigation, which was carried out for the LISF by, among others, former committee member Mariska Kret and master’s student Marjolijn Wijnen, has…

White girls receive significantly more positive comments from their teachers in their primary school reports than white boys and children from migrant backgrounds. PhD candidate Antoinette Kroes researched subtle biases in different contexts and saw how harmful these can be.

eLaw - Center for Law and Digital Technologies at Leiden University, participated in the Horizon Europe BIAS Project international co-creational workshop geared towards discussing fairness of AI applications in the hiring process and ALTAI requirements.

eLaw - Center for Law and Digital Technologies at Leiden University, has hosted the second Horizon Europe BIAS Project co-creational workshop geared towards discussing fairness in the hiring process and identifing desirable requirements and functionalities of the Debiaser.

Leiden University's eLaw Center's BIAS Project and the Universidad de la Laguna's AEQUITAS project will collaborate to develop a deeper understanding of AI technologies' impact on workers and inform policies accordingly.

Hackathon

The Applied Machine Learning Days AMLD is a global platform that brings together experts and participants from over 40 countries across industry, academia, and government in the field of Machine Learning. In this year’s edition, members of the BIAS project organized a track around the topic Fairness…

eLaw - Center for Law and Digital Technologies at Leiden University, hosted the first Horizon Europe BIAS Project co-creational workshop geared towards defining the requirements for identifying and mitigating diversity bias in AI systems used for recruitment purposes.

Carlotta Rigotti, Postdoc researcher at eLaw, participated in the ‘Intersectional Fairness in AI: Legal Frameworks, Tools, and Learning Opportunities’ webinar on 10 December 2024.

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.

The AI chatbot ChatGPT has a clear left-liberal bias when filling in the Stemwijzer voting advice application. This was discovered by master's student Merel van den Broek during an assignment for the Machine Learning for Natural Language Processing course.

On 9 October 2023, Carlotta Rigotti and Eduard Fosch-Villaronga participated in the BIAS webinar on citizen science and AI technologies, namely the first awareness-raising activity of the Horizon Europe BIAS project. They discussed online citizens’ engagement on tackling gender and intersectional biases…

Carlotta Rigotti, Postdoc researcher at eLaw, participated in the Artificial Intelligence and Labour Market (AI&LM) Workshop hosted by Ghent University, to disseminate research findings from the BIAS project.

Dr Eduard Fosch-Villaronga, Assistant Professor at eLaw - Center for Law and Digital Technologies, and 8 partners have been awarded the project 'BIAS: Mitigating Diversity Biases in the Labour Market', a large €4.7M Horizon Europe grant.

Making use of social media is a good way to meet others or to hear about the latest news and developments. But it also has its downsides: disinformation, trolling, disrespectful comments and even the misuse of (personal) data.

Making use of social media is a good way to meet others or to hear about the latest news and developments. But it also has its downsides: disinformation, trolling, disrespectful comments and even the misuse of (personal) data.

FSW building, Wassenaarseweg 52, 2333 AK, Leiden

Conference

When you decide to move to the Netherlands and bring along your family there is a great deal that needs to be taken care of. We will provide some information on schools, childcare and learning Dutch to help you settle in in the Netherlands.

Making use of social media is a good way to meet others or to hear about the latest news and developments. But it also has its downsides: disinformation, trolling, disrespectful comments and even the misuse of (personal) data.

During an evacuation, all employees and students gather at the front or backside of the Pieter de la Court Building.

Inaugural lecture

When moving to the Netherlands, it is important to know whether you are considered resident tax payer or non-resident. Both residents and non-residents are taxed on their taxable income. A number of criteria help determine your status as resident or non-resident.

Each month, we publish an article showcasing how social science research and education contribute to solving societal challenges. Researchers, lecturers, students, and societal partners work together to make knowledge accessible and to make a difference. Through open science and engaged education, we…

Have you experienced or witnessed unacceptable or transgressive behaviour? This page gives information about what you can do yourself and which ‘helplines’ can assist you in this situation.

As an employee of Leiden University, you are eligible to take out various insurance (schemes) at an attractive discount. On this page, you will also find more information about pension, being unfit for work and unemployment.

Valedictory lecture

Making use of social media is a good way to meet others or to hear about the latest news and developments. But it also has its downsides: disinformation, trolling, disrespectful comments and even the misuse of (personal) data.

Carlotta Rigotti and Eduard Fosch-Villaronga have published a new article that offers an insightful and critical literature review on fairness and AI in the labour market as part of the BIAS project.

Research, Transferable skills

Lecture, LIMS seminar

Lecture, Leiden Translation Talks