Ralph: Environmentally Constrained Reasoning

Description

• RALPH not only chooses actions that correspond to the environment but also directs its reasoning according to the state of the environment.
• Each execution architecture utilizes sensor-based information from the environment, as well as knowledge about how the environment may behave, to guide its planning operations, state by state.
• Knowledge about the environment is also used by the meta-level arbitrator to determine which execution architecture will provide the plan in the current state, while the replanning architecture decides whether replanning would be desirable.