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Perpetual Self-aware Cognitive Agents Michael T. Cox BBNT Cambridge.

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Presentation on theme: "Perpetual Self-aware Cognitive Agents Michael T. Cox BBNT Cambridge."— Presentation transcript:

1 Perpetual Self-aware Cognitive Agents Michael T. Cox BBNT Cambridge

2 9 March 20052 Self-Awareness What does it mean to be self-aware? ? What does it mean to be aware? –Not just to perceive the environment –Instead to interpret the environment Understand the environment well enough to generate goals

3 9 March 20053 Cognitive Integration, not Technology Integration Spheres of Intelligence –Physical domain –Mental domain –Social domain Perpetual Cognitive Agent Reasoning Integration –Problem-solving –Interpretation –Learning

4 9 March 20054 Wumpus World Description Performance measure –gold +1000, death -1000 –-1 per step, -10 for using the arrow Environment –Squares adjacent to Wumpus are smelly –Squares adjacent to pit are breezy –Glitter iff gold is in the same square –Shooting kills Wumpus if you are facing it –Shooting uses up the only arrow –Grabbing picks up gold if in same square –Releasing drops the gold in same square Actuators: Left turn, Right turn, Forward, Grab, Release, Shoot Sensors: Stench, Breeze, Glitter, Bump, Scream

5 9 March 20055 The Corridor Cave

6 9 March 20056 ( Planning ) ( Interpretation ) S S’ Plan Goal Translate Wumpus Environment Simulator Prodigy/Agent Meta-AQUA effector subsystemperceptual subsystem INTRO Architecture

7 9 March 20057 Meta-AQUA

8 9 March 20058 PRODIGY

9 9 March 20059 Prodigy/Agent

10 9 March 200510

11 9 March 200511 Goal Choices How did INTRO know to solve an achievement goal rather than a learning goal? Answer: Hard coded! Speculation –Calculate amount of change required for learning goal –Confidence in knowledge structures –Know when an achievement goal is easy

12 9 March 200512 Self-Awareness What does it mean to be self-aware? –Not just to perceive one’s self in the environment –Instead self-interpretation Understand the self well enough to generate learning goals What does it mean to be aware? –Not just to perceive the environment –Instead to interpret the environment Understand the environment well enough to generate goals

13 9 March 200513 But … Relationship between metacognition and self-awareness? PRODIGY has no “I” Meta-AQUA does, but does not use it Anderson’s hypothesis

14 9 March 200514 Questions Remaining How to integrate bottom-up with top-down processing? How is control affected by monitoring computationally? How can a system know what it knows? What does it really mean for a system to be self- aware? How can lessons from cognitive psychology inform computational approaches? Vice versa?


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