Task and Situation Structures for Case-Based Planning.

This paper introduces two new representation structures for tasks and situations, and a comprehensive approach for case-based planning (CBP). We focus on everyday tasks in open or semi-open domains, where exist a variety of situations that a planning (and execution) agent must deal with. This paper first introduces a new, generic structure for representing tasks and task plans. The paper, then, introduces a generic situation structure and a methodology of situation handling. The proposed structures support encoding all domain knowledge in cases while avoiding hard-coding domain rules.