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Research On Key Technologies Of CGF Cooperative Behavior Modeling

Posted on:2012-12-01Degree:DoctorType:Dissertation
Country:ChinaCandidate:L FengFull Text:PDF
GTID:1112330362460096Subject:Control Science and Engineering
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Cooperative behavior modeling technology plays an important role in research ofComputer Generated Forces (CGF). It also ensures the validity of human behaviorrepresenting and the credibility of combat simulation results. Through making humanbehavior representing in combat simulation system as the research background andreflecting actual battlefield cooperative behaviors as the aim, this paper elaborates onthe research of cooperative behavior modeling key technology in CGF by the guidelinesof"theory - method - application".First of all, paper expatiates on the background and significance of research ofcooperative behavior modeling technology, analyses shortages of exsiting internal andoverseas research, according to which fetchs out the technical requirement of researchon cooperative behavior modeling and main contents of this paper, provides technicalreference for following research of theories and methods.Secondly, research of cooperative behavior modeling needs backup of well formedcognize architecture. Unified cognize architecture of human cognitive behaviormodeling is researched, and hence PVC_HBM cognize architecture is designed that canbe provided with human behavior variability, adversary intention recognition andreasoning and cooperative behavior. According to analysis of CGF cooperationconcepts and fuctional requirements, our CGF cooperative behavior modelingframework is established, characteristics of each functional level and correlationsbetween levels are expatiated, and their key implement technologies are also broughtforward.Behaviors in combat are all under the organization restrictions. Paper studies andbuilds ontology-based CGF organization model, which can precisely representbattlefield organization behaviors. It expatiates on the modeling requirements andprocess of CGF organization ontology based on modern combat organizationcharacteristics, presents conceptual description method of CGF organization ontology,describes related concepts and relations at aspects of static structure and dynamicbehavior, and implements the formalizing representation of CGF organization ontology,including formalizing modeling method using first-order predicate logic and buildingmethod of knowledge. The implemention of CGF organization ontology providescoherent organization glossary, description framework and reuseable organizationbehavior knowledge for CGF entites.Task organization is the base of cooperation between combat units. In order toforming CGF task organization to fulfill the whole combat target, methods of combattask decomposition and dynamic task allocation in CGF are studied. First, formalizeddefinition, classification and relation description about combat task are put forward, a method called"AND-OR decomposition tree"is presented to describe logic dependencebetween combat tasks.Second, a CGF task decomposition framework that is based onLD-TAEMS is presented to enhance maneuverability of task decomposition. Furthermore, the process of dynamic task allocation in CGF is firstly described in mathematicalforms, then comprehensive capabilities target of entity to accomplish task is defined,and an"authority"assignment method is given for all levels'targets. At last, throughtaking the entity's experiences, abilities, and individual states into account, paper designsand implements the dynamic task allocation algorithm based on individualcomprehensive capabilities evaluation and ranking (ICCER). The experimental resultsshow that algorithm is effective, applicable and can represent the whole CGF taskorganization formation process in domain of combat simulation.When a cooperative task assigned to certain combat unit can't be fulfilled, it couldbe achieved through collaboration with other units in the team. With analyzing thecombat collaborative behavior process, collaborative behavior modeling method basedon modified joint intention theory is presented. First, according to the shortage ofexisting joint intention theory, a new joint goal formation method which is based ontask logic and dependence relations is presented. Second, an observation-basedrecognition and reasoning (OBRR) technology is studied, and an team status monitorand maintenance method is given which is combined with Joint-Intention-basedbehavior restriction, team inter-communication method and OBRR-based method. Atlast, a team status repairing algorithm is designed, and the capability of replanning taskorganization is implemented which is used when the team can not be repaired any more.As the test results show, this model could practically and effectively representbattlefield collaborative behaviors during cooperation process.Effective resolution needs to be done among combat units when they areconfronting belief conflicts. According to this requirement, a negotiatory behaviormodeling method based on argumentation theory is studied. First, the definitions aboutrelated concepts are given, and the Argumentation-based negotiation process isdesigned. Further more, the Utility Theory-based arguments strength qualifiedevaluation algorithm is implemented, which is used for the selection of optimal proposaland confirmation of common belief. For improving negotiation efficiency, a rankingand reduction method for multi-event argumentation is implemented. According to testresults, it can represent the actual battlefield behaviors under conflicts and ensure theconsistency of negotiation during the cooperation process.Finally, paper expatiates on the design guideline and development process of CGFcooperative behavior modeling edit tools (CGF-CBMET) in unit-level tacticalsimulation system. First, the collective architecture of CGF-CBMET is designed afterfunctional requirements analyse. Then, two functional modules including editors oforganizational cooperation and cooperative tactic behavior, as well as the interface between knowledge base and outerside simulation application are designed detailedly.Last, combining with the"group position attack"task scenario, the development processand data analysis of simulation application are given to validate the whole work above.
Keywords/Search Tags:Combat Simulation, Computer Generated Forces, HumanBehavior Representation, Cooperative Behavior Model, OrganizationOntology, Task Decomposition, Dynamic Task Allocation, Collaboration, Negotiation
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