Registration is needed for accessing the conference system. As there are costs involved in preparing proceedings, in handling registrations or infrastructure, there is a registration fee. This fee depends on, whether you are author of a contribution that will be published in the official KI2020 proceedings and whether you are member of the GI. One authors for each published contribution needs to be registered as such. If you contribute to a workshop, the doctoral consortium or plan to participate at a tutorial, registration is free, only if you are GI member, otherwise a smaller fee occurs.