The 29th ACM International Conference on Information and Knowledge Management (CIKM) was held online from the 19
th
to the 23
rd
of October 2020. CIKM is an annual computer science conference, focused on research at the intersection of information retrieval, machine learning, databases as well as semantic and knowledge-based technologies. Since it was first held in the United States in 1992, 28 conferences have been hosted in 9 countries around the world.