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Shared Models of Activity To Underpin Small Unit Operations

Shared Models of Activity To Underpin Small Unit Operations Austin Tate, Jeff Dalton, John Levine & Peter Jarvis Artificial Intelligence Applications Institute University of Edinburgh http://www.aiai.ed.ac.uk/project/ix. Topics.

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Shared Models of Activity To Underpin Small Unit Operations

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  1. Shared Models of Activity To Underpin Small Unit Operations Austin Tate, Jeff Dalton, John Levine & Peter Jarvis Artificial Intelligence Applications Institute University of Edinburgh http://www.aiai.ed.ac.uk/project/ix

  2. Topics • I-X is a program to research, develop and apply Intelligent Systems Technology. • It draws on the fundamental research conducted over a period of 17 years on the O-Plan planning agent system and on the <I-N-OVA> activity model. • To be covered: • Activity Representation - SPAR and <I-N-CA> • Agent Architecture and Modules • I-X Technology Components

  3. Modeller Commander Intell. & Analysis Planner Shared Plan Model - a rich plan representation using a common constraint model of activity (<I-N-CA>). Shared Task Model - Mixed initiative model of “mutually constraining the space of behaviour”. Shared Space of Options - explicit option management. Shared Model of Agent Capabilities - handlers for issues, functional capabilities and constraint managers. Shared Understanding of Authority - management of the authority to plan (to handle issues) and act which may take into account options, phases and levels.

  4. Recent Work on Plan/Process Representation Standards • ARPI KRSL 2.0.2 • ARPI KRSL-Plans (versions 1 and 2) • PIF 1.2 • “Standards” Efforts: • WfMC Glossary and WPDL (Interface 1) • OMWG CPR/AITS Warplan • NIST PSL • DARPA/AFRL Shared Planning and Activity Representation (SPAR)

  5. SPARShared Planning & Activity Representation • The principal scope of SPAR is to represent past, present and possible future activity and the command, planning and control processes that create and execute plans meant to guide or constrain future activity. • It can be used descriptively for past and present activity and prescriptively for possible future activity.

  6. SPARCoverage • Plans & Schedules • Rationale • Resources & Objects • World States • Time & Space • Uncertainty, Ambiguity & Imprecision • Other Domain Knowledge • Activities • Agents • Control Structures, Execution & Simulations • Evaluations • Goals, Requirements, Objectives, Mission • Organisational Structures

  7. SPARUses • Communicating Plans • Domain Building • Organisational Support • Plan Editing/Browsing • Plan Libraries • Plan/Schedule Generation • Plan Evaluation/Critique • Planning System Synthesis • Task Assignment • Plan Execution

  8. SPAR

  9. <I-N-CA>Constraint Model of Activity • I - Issues - Implied Constraints • N - Node (Activity) Constraints • C - Critical Constraints • O - Critical Ordering Constraints • V - Critical Variable/Object Constraints • A - Auxiliary Constraints • Non-critical Ordering and Variable Constraints • Authority, World State, Resource, Spatial Constraints • Miscellaneous Constraints

  10. Requirements Requirements Reports Reports Requirements Requirements Issue Handlers Reports Reports Processing Capabilities Interface Manager Controller Processing Platform(s) PlanWorld Viewers Task & Option Management Model Management Technical & World Viewers Constraint Managers Constraint Managers Data Base Manager Information Sources Plan State Issues Nodes Constraints Constraint Associator Mediators/Mapping Information Sources I-Arch Systems Integration & I-Plan Planner

  11. Choose (IH) Issues or Implied Constraints I Do (IH) Node Constraints N Detailed Constraints Propagate Constraints CA C=Critical Constraints A=Auxiliary Constraints IH=Issue Handler (Agent Functional Capability) I-Plan and <I-N-CA> Plan State Plan Agenda Plan Entities Plan Constraints Space of Legitimate Plan Elaborations

  12. Requirements Requirements Reports Reports Processing Capabilities Task & Option Management Model Management Technical & World Viewers Constraint Managers Information Sources Mediators/Mapping Fractal Architecture Cell Image From DARPA IBFM Program CD, ISX Example of a Fractal Component Model-Viewer-Controller Structure

  13. Shared Plan Model - a rich plan representation using a common constraint model of activity (<I-N-CA>). Shared Task Model - Mixed initiative model of “mutually constraining the space of behaviour”. Shared Space of Options - explicit option management. Shared Model of Agent Capabilities - handlers for issues, functional capabilities and constraint managers. Shared Understanding of Authority - management of the authority to plan (to handle issues) and act which may take into account options, phases and levels.

  14. I-X: I-Technology Components

  15. Productive Uses of I-X Technology • ESA Plan-ERS1 • ESA OPTIMUM-AIV (ERS-1 and Ariane IV) • Amoco ProAct Planner • ProActive Solutions SmartProject • UK/RAF Search & Rescue Coordination Centre Workflow Support Aids • DARPA/USAF ACP3 - Air Campaign Planning Process Panel • Contributions to Plan & Process Standards (PIF, WfMC WPDL, OMWG CPR, NIST PSL, SPAR)

  16. Further Information • http://www.aiai.ed.ac.uk/project/ix • http://www.aiai.ed.ac.uk/~oplan • http://www.aiai.ed.ac.uk/~arpi/spar

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