*** COVID-19 Update ***

The CLEF 2020 paper submission deadline is coming. The safety and well-being of all conference participants is our top priority. We are following updates on the COVID-19 situation from local authorities and the World Health Organization.

The conference is half a year away, and we remain confident that COVID-19 concerns will subside and CLEF 2020 will be held in September 2020 as planned. As a backup plan, we will be supporting remote participation.

We will continue to monitor official travel advisories related to COVID-19 and update the conference website to keep you informed.

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Welcome

CLEF 2020 is the 11th CLEF conference continuing the popular CLEF campaigns which have run since 2000 contributing to the systematic evaluation of information access systems, primarily through experimentation on shared tasks.
Building on the format first introduced in 2010, CLEF 2020 consists of an independent peer-reviewed conference on a broad range of issues in the fields of multilingual and multimodal information access evaluation, and a set of labs and workshops designed to test different aspects of mono and cross-language Information retrieval systems. Together, the conference and the lab series will maintain and expand upon the CLEF tradition of community-based evaluation and discussion on evaluation issues.

CLEF 2020 will take place at the Centre for Research & Technology Hellas (CERTH), Thessaloniki, Greece, 22-25 September 2020, where it will be hosted and co-organized by the Multimedia Knowledge and Social Media Analytics Laboratory (MKLab) of CERTH's Information Technologies Institute.