Context in problem solving: a survey

Dealing with context seems to be a major challenge which the field of Artif icial Intelligence (AI) will have to face in the next few years. The import ance of the challenge is borne out by the various scientific events focusin g on context which have been held since 1995. This does not mean that conte xt has not been studied before-it has in such domains as Natural Language P rocessing-but it has yet to be studied in depth since previous research has only covered few aspects of the problem. We present in this paper a survey of the literature dealing directly and explicitly with context whatever th e domain. This makes it possible for us to have a clear view of context in AI. One of the conclusions of this survey is to point out the existence of different types of context in areas such as the representation of knowledge in a computer system, the reasoning that the system carries out using the knowledge, and the interaction the system has with people.