Towards a general theory of action and time
Artificial Intelligence
Logical foundations of artificial intelligence
Logical foundations of artificial intelligence
Talking to UNIX in English: an overview of UC
Communications of the ACM
Maintaining knowledge about temporal intervals
Communications of the ACM
The Frame Problem in Artificial Intelligence: Proceedings of the 1987 Workshop April 12-15, 1987 Lawrence, Kansas
A Deduction Model of Belief
UC -- A Progress Report
User interfaces and help systems: from helplessness to intelligent assistance
Artificial Intelligence Review
Reasoning about users'actions in a graphical user interface
Human-Computer Interaction
| Hi-index | 0.00 |
We have realized the help system SINIX Consultant (SC) for SINIX1 users. The system is capable of answering – in German – natural language questions concerning SINIX commands, objects, and concepts. But not only does this help system react to inquiries – additionally, the system is capable of activating itself. If the user employs a sequence of SINIX commands (a plan) in order to reach a specific goal, the help system proposes a sequence which reaches the same goal, but, with fewer commands. In this paper, a brief survey of the SINIX Consultant and the realized plan recognizer REPLIX is first given. Then, an initial attempt of a theoretical treatment of plan recognition is presented. This is done within the logical framework. We show how we can use an interval-based logic of time to describe actions, atomic plans, non-atomic plans, action execution, and simple plan recognition. We also show that the recognition of inserted sub-plans managed by REPLIX can be handled as well. Then, we present a problem which cannot be treated in the formalism. Thus, in this paper, we don't present a full developed theory but nevertheless, a step towards it.