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Specialization Project 06/07 HTN

Specialization Project 06/07 HTN. Presentation for MS3 By Glenn Wissing. What is HTN?. Planning technique, a goal and an initial state ends in a series of actions. Planning is NOT magic. HTNs strength over classical planning: Hierarchical abstraction levels. Easy and controlled overview.

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Specialization Project 06/07 HTN

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  1. Specialization Project 06/07HTN Presentation for MS3 By Glenn Wissing

  2. What is HTN? • Planning technique, a goal and an initial state ends in a series of actions. • Planning is NOT magic. • HTNs strength over classical planning: • Hierarchical abstraction levels. • Easy and controlled overview.

  3. The basic elements in HTNs • Tasks • Primitive tasks • Non-primitive tasks • Operators – Actions, effects the current state. • Methods – Decomposes non-primitive tasks into a new set of sub-tasks.

  4. Decomposition tree example AssassinateBoss(BOSS) Sniper-Kill Infiltrate-Kill MoveTo(SNIPER-POS) Shoot(BOSS) MoveQuite MoveFast Sneak(SNIPER-POS) Actions to perform: Sneak(SNIPER-POS) Shoot(BOSS)

  5. Project goals • To learn about HTNs. • To implement a prototype.

  6. What was achieved • HTN knowledge has been gained. • A prototype has been implemented.

  7. Project conclusions • I’m satisfied with the amount of knowledge I have gained. • The implementation is lacking on some aspects though.

  8. What I miss in the prototype • Negated preconditions. • Numeric terms. • Call terms. • Lists. • Speed!

  9. Demo scenario

  10. Questions?

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