Human-Centered AI (HCAI) is an emerging discipline that aims to create AI systems that amplify and augment human abilities and preserve human control in order to make AI partnerships more productive, enjoyable, and fair. Our workshop aims to bring together researchers and practitioners from the IRCAI and NTU communities and others with convergent interests in HCAI. With an emphasis on internationality, diversity and discussion, we will explore research questions that stem from the increasingly wide-spread usage of machine learning algorithms across all areas of society, with a specific focus on understanding both technical and design requirements for HCAI systems, as well as how to evaluate the efficacy and effects of HCAI systems. This workshop is intended to be a working group to co-construct new and combined perspectives and potentially bring forward the idea of introducing HCAI into the new IRCAI Network of Centers of Excellence in AI. We will therefore allocate much of the time for short presentations, where people from our diverse communities can hear each other and formulate new ideas.