| 摘要: |
| 把智能体(Agent)技术引入地理信息系统中，用以增强地理信息系统的人机交互能力和多信息源的可扩展性.用户的问题与用户的查询目标和领域知识相关，因此，交互界面智能体能通过匹配知识库的过程引导用户细化问题，最终提供给用户满意的答案.而且，基于智能体体系结构的建立能够更好地集成各种异构信息源，由于各种异构信息源的集成，所以可以提供给用户数量更多和质量更高的信息.此外还详细描述了一个基于智能体结构的原形系统GXGIS. |
| 关键词: 界面智能体；地理信息系统；知识库；异构信息源 调解器 |
| DOI： |
| 分类号: |
| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.79990850 (国家自然科学基金) |
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| A Geographical Information System Based on A gent Architecture |
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TANG Chao,FENG Shan,XU Li-da
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| Abstract: |
| In this paper, Agent based architecture has been introduced into GIS for interactability and scalability. The authors have developed an interface agent to interactively assist the user with the query formation process. The interface agent has a capability of offering domain knowledge that is associated with a given query. Also the agent records user s troubleshooting experience and shows it to the same user and other user as hints. Further, the authors also have developed the Agent based architecture with a 2-tier mediator model in GIS to meet the meeds for interoperability among diverse application domains and integration of heterogeneous informa-tion source.The broker agent provides a matchmaking service to other agent,As a result,qualitative and quan-titative data can be integrated into GIS.Finally a prototype system-GXGIS,using agent-based technology is described. |
| Key words: interface agent geographical information system knowledge base heterogeneous information source mediator |
