Stories from preference data

The 4th International Summer School on Preference Learning for Ranking and Ordinal Data.

📅 June 2027
📍 Leiden, Netherlands
🎓 PhD students & postdocs
Who we are

PrefStat — a community for preference statistics

PrefStat is a permanent inter-university research and working group devoted to preference statistics. Beyond this summer school, it brings the community together year-round — disseminating methods, connecting researchers, and growing the field of preference learning across institutions and countries.

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Conference sessions

Specialised sessions on preference learning at leading international statistics conferences.

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Workshops

Focused workshops that connect methods, applications, and the people working on them.

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Annual summer school

A high-level school held every year in a different city — Calasetta, Oslo, Valladolid and now Leiden.

About the school

Statistical learning from preference information

PrefStat disseminates statistical approaches in preference learning — the modelling and analysis of rankings, ratings and ordinal data. From recommender systems and Large Language Models to surveys, marketing and political science, it combines lectures by leading scholars with hands-on tutorials in R.

Objective 01

Foundations

Core concepts and techniques: types of preference data, measures of agreement and disagreement, methods for analysis.

Objective 02

TBC

This edition's theme — ...

Objective 03

Computation

Implementing preference learning methods through computational tools with R.

Try it · a taste of the topic

From individual rankings to a consensus

Preference learning often starts here: several judges rank the same items, and we look for the ranking that best represents them all. Tap any item to promote it, or shuffle the judges — the consensus (a Borda aggregation) updates live.

Each judge ranks 5 parts of the school. Click an item to move it up.

Consensus ranking · Borda scores

Places are limited

Registration opens soon. Pre-register now to secure a 10% early-bird discount when you confirm your registration.

Pre-register