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. PAN 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: Challenges on Species Presence Prediction and Identification, and Individual Animal Identification
  10. LongEval: Longitudinal Evaluation of Model Performance
  11. QuantumCLEF: Quantum Computing at CLEF
  12. SimpleText: Simplify Scientific Text
  13. TalentCLEF:Skill and Job Title Intelligence for Human Capital Management
  14. Touché: Argumentation Systems