Report on the 14th Conference and Labs of the Evaluation Forum (CLEF 2023): Experimental IR Meets Multilinguality, Multimodality, and Interaction.

This is a report on the fourteenth edition of the Conference and Labs of the Evaluation Forum (CLEF 2023), held on September 18--21, 2023, in Thessaloniki, Greece. CLEF was a four-day hybrid event combining a conference and an evaluation forum. The conference featured keynotes by Barbara Plank and Claudia Hauff, and presentation of peer-reviewed research papers covering a wide range of topics, in addition to many posters. The evaluation forum consisted of thirteen labs: BioASQ, CheckThat!, DocILE, eRisk, EXIST, iDPP, ImageCLEF, JokeR, LifeCLEF, LongEval, PAN, SimpleText, and Touché, addressing a wide range of tasks, media, languages, and ways to go beyond standard test collections. Date : 18--21 September, 2023. Website : https://clef2023.clef-initiative.eu/.