I have attended to the conference at Brighton titled, ‘Infrastructure in Troubled Times’. The conference used the ‘world café’ as a methodology. It functioned so well and it gave chance to meet with the speakers closely, to ask our questions directly and to hear other attendees’ works deeply.
Speakers were spread to different tables and the conference attendees were choosing from the different presentation related to the subjects that they were curious about. Everyone was circulating between the different tables, in every 30-45 minutes.
If you are interested about the subject, here are some details:
https://blogs.brighton.ac.uk/secp/2018/03/27/cfc-infrastructures-for-troubled-times/