For the time being the organization of the 4th CAA-GR conference ‘Computer Applications and Quantitative Methods in Archaeology, Greece’ is not affected by the current COVID-19 crisis. We extended the deadline for the submission of abstracts, though, to 29th of May 2020. We expect that in positive circumstances the situation will clear during summer and that the conference can be held as planned at N.C.S.R. “Demokritos” on 1st and 2nd October 2020. It will be jointly organized by the Institute of Nanoscience and Nanotechnology and the Institute of Informatics and Telecommunications The focus of this year’s conference will be on ‘Big Data in Archaeology’. In the framework of the conference a one-day workshop on ‘Management and evaluation of Big Data‘ will be organized.