Visualization and Modeling for Interactive Plan Development and Plan Steering.
Abstract
This report describes research to develop a mixed-initiative plan execution system in which an interactive "plan steering" agent assists a human user in keeping an executing military plan on track. In the Interactive Plan Steering (IPS) architecture we developed, a network of demons watches the executing plan looking for pathological states that indicate the plan may be failing in some respect. When a pathology is detected, a Plan Steering Agent (PSA) engages the user in a visual dialogue, altering the user to the pathology and offering advice for steering the plan around it. Experiments show that a human operator working together with the IPS system outperforms either I) the human working alone or 2) the IPS system operating without the human's help. A new technique for detecting pathologies during plan execution has been developed under this contract. This technique, called Multi-Stream Dependency Detection (MSDD), examines plan execution traces from multiple sources looking for significant dependencies among actions and effects. MSDD will be useful for plan steering by identifying statistical indicators of pathologies that can be used to trigger demons. It will also prove generally useful for other aspects of planner evaluation, such as identifying unexpected causes of plan failure or unanticipated interaction effects between plan actions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1998
- Accession Number
- ADA354498
Entities
People
- Paul R. Cohen
Organizations
- University of Massachusetts Amherst