Labs

CLEF promotes the systematic evaluation of information access systems, primarily through experimentation on shared tasks.

Fourteen labs are offered at CLEF 2025:

1. BioASQ: Large-scale biomedical semantic indexing and question answering
2. CheckThat! Lab on Subjectivity, Claim Extraction & Normalization, and Fact-Checking Numerical Claims
3. CLEF 2025 Lab on Stylometry and Digital Text Forensics
4. ELOQUENT
5. eRisk 2025: Early Risk Prediction on the Internet
6. EXIST: sEXism Identification in Social neTworks
7. ImageCLEF 2025 Multimodal Challenge in CLEF
8. JOKER: Automatic Humour Analysis
9. LifeCLEF
10. LongEval: Longitudinal Evaluation of Model Performance
11. QuantumCLEF - Quantum Computing at CLEF
12. SimpleText
13. TalentCLEF:Skill and Job Title Intelligence for Human Capital Management
14. Touché: Argumentation Systems