The Special Interest Group on Computer–Human Interaction (SIGCHI) is one of the Association for Computing Machinery's special interest groups which is focused on human–computer interactions (HCI).
It hosts the flagship annual international HCI conference, CHI, with over 3,000 attendees,[1] and publishes ACM Interactions and ACM Transactions on Computer-Human Interaction (TOCHI). It also sponsors over 20 specialized conferences and provides in-cooperation support to over 30 conferences.
SIGCHI has two membership publications, the ACM TechNews - SIGCHI Edition and ACM Interactions. Until 2000, the SIGCHI Bulletin was also published as a membership publication.