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184 Socially Intelligent Agentsperforming task level actions, the agents engage in speech acts and generategestures, facial expressions, and affective speech modulation based on propertiesof their social state.The following are annotated traces of the system where the only differenceis a change in the “personality” of the one agent. In the first trace, Stevetreats Jack rudely, in the second, he treats him fairly. Text generation is extremelysimplistic: agents actually communicate through a more stylised plancommunicationlanguage.Rude Interaction:Jack: I want to make-some-big-money. [Creates a new plan containing this goal – enter car,drive to market, exit car, buy lotto ticket. Looks concerned, scratches his head, then, after devisinga plan looks hopeful.]Steve: I want to catch-some-waves. [Creates a new plan containing this goal. Looks concerned,scratches head. Surfing is important to Steve but a plan cannot be generated due to an unestablished“wave-location” precondition.]Jack: [“sees” Steve’s distress and requests information.] Hey Steve, what’s wrong?Steve: [Locates the feature in memory generating the most intense negative emotional excitation(see [1]). Communicates the associated plan in a distressed tone of voice.] I want to catch somewaves but can’t find any good breakers.Jack: [Incorporates Steve’s plan into memory and locates relevant information. Jack was previouslytold of a “plan” that establishes Steve’s blocked subgoal] Steve, does it help that someonedid say there’s some great waves near the pier?Steve: [Incorporates Jack’s information. Derives a plan to go surfing. Looks hopeful.]Jack: [Perceives Steve’s change in expression and seeks to confirm his expectation that the informationhe provided helped Steve.] So that information helped?Steve: [Handles Jack’s information request.] Yes Jack. I plan to drive the car to the beach, thenI plan to surf-my-brains-out.Jack: [Incorporates Steve’s revised plan and finds a conflict with his own plans. Based on personality,Jack attempts to negotiate a fair solution.] Wait a second. Our plans conflict. I plan todrive the car to the quicky-mart then I plan to buy a-lottery-ticket.Steve: [Incorporates Jack’s plan and recognizes the same interaction. Based on personalitymodel, Steve responds to interaction differently. He devises a plan that satisfies his own goalswithout regard to any conflicts it may introduce in Jack’s plans. Steve exits stage right.] Laterdude, I’m driving the car to the beach.Jack: [Perceives that car has departed without him. Looks angry. Says in angry voice:] Iwantto kill-my-roommate.Cooperative Interaction: Jack: [Incorporates Steve’s revised plan and finds a conflictwith his own plans. Based on personality, Jack attempts to negotiate a fair solution.] Wait asecond. Our plans conflict. I plan to drive the car to the-quicky-mart then I plan to buy a-lotteryticket.Steve: [Incorporates Jack’s plan and recognizes the same interaction. Based on Steve havingsomewhat lower social status, he takes the initiative in repairing the conflict.] Well, I could

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