The Design And Application Of Multi-Agent Knowledage Discovery System In Rice Cultivation Database

Knowledge acquisition is one of three major factors which should be dealt with in systems based on knowledge.It is so difficult to achieve knowledge that it is often considered as the crucial and decisive factor in knowledge system.Difficulties in expert-orientd knowledge acquisition are especially prominent in the field of Rice Cultivational Simulation-Optiminzation-Decision Making.Based on Integration of "High yield & Benefit and Good Grain Quality of Modeled Cultivation of Foodstuff Crop (Rice) and Its Consultation System",this thesis sets it ultimate goal to deal with the knowledge discovery in the consultation system of Simulation-Optimization Decision Making in Quality and High-yielding Rice Cultivation.After a close study of the features of the Database in Rice Cultivation,this thesis introduces the System Engineering theory of agent aralysing and designing and offers a practical new way to promote the intelligence of the knowledge discovery system in Rice Cultivation Database,to improve the efficiency of Data Mining and the Human-Computer interactive ability to realize the integrated knowledge-based combination between human and computer or among the sub-systems.The second part of the thesis tries to construct the architecture of Multi-agent Knowledage Discovery System in Rice Cultivation Database(MAKDSRCD), and build a system model on it. The functions of those respective components and the operation procedure of the system are also described in this part.The third part tries to deal with the design of the agent and its representation and inference of knowledge,the cooperation among agents and other crucial issue sach as communication, by applying Multi-thread, Component Object Model(COM), Database, Knowledge Query and Manipulation Language(KQML).Thus MAKDSRCD is realized.The fourth part offers the adaptability of the cultivation of different spicies of Rice,and some examples to reveal knowledge discovery in detecting the most suitable seed sowing period ,which leads to the resolution that MAKDSRCD having achieve a special function to discover knowledge in Rice Cultivation Database, MAKDSRCD is a new way to achieve the knowledge of Rice Cultivation and is valuable to some degree.