Proceedings, The Fourth AAAI Conference on Human Computation and Crowdsourcing (HCOMP 2016)

HCOMP is aimed at promoting the scientific exchange of advances in human computation and crowdsourcing among researchers, engineers, and practitioners across a spectrum of disciplines. The conference was created by researchers from diverse fields to serve as a key focal point and scholarly venue for the review and presentation of the highest quality work on principles, studies, and applications of human computation. The meeting seeks and embraces work on human computation and crowdsourcing in multiple fields, including human- computer interaction, cognitive psychology, economics, information retrieval, databases, systems, optimization, and multiple subdisciplines of artificial intelligence, such as vision, speech, robotics, machine learning, and planning. The theme for HCOMP 2016 is interactions: between people and technology that is foundational to human computation; between theoretical foundations, experimental work, and engineering; between the computational, scientific, and social applications of crowdsourcing; and between diverse disciplines and perspectives, within our community and beyond. The theme reflects the history of HCOMP, which was started by researchers from diverse fields who wanted a high quality scholarly venue for the review and presentation of the highest quality work on principles, studies, and applications of human computation and crowdsourcing. This conference builds on the success of three prior AAAI HCOMP conferences (and four HCOMP workshops before that) to promote the most rigorous and exciting scholarship in this fast emerging, multidisciplinary area. The conference is designed to be a venue for exchanging ideas and developments on principles, experiments, and implementations of systems that rely on programmatic access to human intellect to perform some aspect of computation, or where human perception, knowledge, reasoning, or coordinated activity contributes to the operation of larger systems and applications. While artificial intelligence (AI) and human-computer interaction (HCI) represent traditional mainstays of the conference, HCOMP believes in inviting, fostering, and promoting broad, interdisciplinary research. This field is particularly unique in the diversity of disciplines it draws upon, and contributes to, ranging from human-centered qualitative studies and HCI design, to computer science and artificial intelligence, economics and the social sciences, all the way to cultural heritage, digital humanities, ethics, and policy. The HCOMP conference is aimed at promoting the exchange of advances in human computation and crowdsourcing among not only researchers, but also engineers and practitioners, to encourage dialogue across a spectrum of disciplines and communities of practice.