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STRIPS: "STanford Research Institute Problem Solver"

The Stanford Research Institute Problem Solver (STRIPS) is a classical problem solving system (now called a PDDL: Planning Domain Definition Language) which develops a list of actions which will reach a goal state from an initial state given a list of possible actions. STRIPS was developed for Shakey

It is an automated planning technique that works by executing a domain and problem to find a goal. With STRIPS, you first describe the world. You do this by providing objects, actions, preconditions, and effects. These are all the types of things you can do in the game world.

Once the world is described, you then provide a problem set. A problem consists of an initial state and a goal condition. STRIPS can then search (often using A*) all possible states, starting from the initial one, executing various actions, until it reaches the goal.



Action: PushBox(x, y)
Precond: BoxAt(x)
Effect: BoxAt(y), ¬ BoxAt(x)

Note: ¬ indicates that the state is deleted.

Note that your must describe the world at a very high symatic level (e.g. "block A is on block B" rather than "block A is at 2,7,5, block B is at 2,7,0 and is 4.9 high"). This very high level description enables efficient solution planning, and simple actions.

STRIPS and PDDL planning in general has both good and bad features:


See also:

file: /Techref/method/ai/strips.htm, 4KB, , updated: 2023/9/27 11:09, local time: 2024/7/20 08:47,

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