Cognitive Chance Discovery: From abduction to affordance and curation

In this paper, first I review the basic theories-concept and computational realization of abduction. Then I brefly review chance discovery which focuses on rare and novel events. In addition I briefly review the concept of affordance porposed by Gibson. By using the above concepts and techniques, a dementia care system inspired by affordance is proposed and discussed Finally I introduce chance discovery based curation proposed by me. The dementia care system is discussed from the aspect of communication and chance discovery based curation.