Accession Number : ADA310766

Title :   Believable Social and Emotional Agents.

Descriptive Note : Doctoral thesis,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE

Personal Author(s) : Reilly, W. S.

PDF Url : ADA310766

Report Date : MAY 1996

Pagination or Media Count : 300

Abstract : One of the key steps in creating quality interactive drama is the ability to create quality interactive characters (or believable agents). Two important aspects of such characters will be that they appear emotional and that they can engage in social interactions. My basic approach to these problems has been to use a broad agent architecture and minimal amounts of modeling of other agent in the environment. This approach is based on an understanding of the artistic nature of the problem. To enable agent-builders (artists) to create emotional agents, I provide a general framework for building emotional agents, default emotion-processing rules, and discussion about how to create quality, emotional characters. My framework gets a lot of its power from being part of a broad agent architecture. The concept is simple: the agent will be emotionally richer if there are more things to have emotions about and more ways to express them. This reliance on breadth has also meant that I have been able to create simple emotion models that rely on perception and motivation instead of deep modeling of other agents and complex cognitive processing. To enable agent builders to create social behaviors for believable agents, I have designed a methodology that provides heuristics for incorporating personality into social behaviors and suggests how to model other agents in the environment. I propose an approach to modeling other agents that calls for limiting the amount of modeling of other agents to that which is sufficient to create the desired behavior. Using this technique, I have been able to build robust social behaviors that use surprisingly little representation. I have used this methodology to build a number of social behaviors, like negotiation and making friends. I have built three simulations containing seven agents to drive and test this work.

Descriptors :   *LEARNING MACHINES, *ARTIFICIAL INTELLIGENCE, COMPUTERIZED SIMULATION, SCENARIOS, SYSTEMS ENGINEERING, QUEUEING THEORY, DECISION MAKING, DISTRIBUTED DATA PROCESSING, SOCIAL COMMUNICATION, COGNITION, REASONING, COMPUTER ARCHITECTURE, THESES, HEURISTIC METHODS, PATTERN RECOGNITION, SYSTEMS ANALYSIS, INTERACTIVE GRAPHICS, MAN COMPUTER INTERFACE, DYNAMIC PROGRAMMING, PERCEPTION(PSYCHOLOGY), PERSONALITY, VIRTUAL REALITY, NATURAL LANGUAGE, SIMULATION LANGUAGES, ROLES(BEHAVIOR), STRUCTURED PROGRAMMING, EMOTIONS.

Subject Categories : Cybernetics
      Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE