摘要
本文报道的稻纵卷叶螟管理专家系统(MSRLR),系用知识工程语言NEW的最新版本和BASIC语言构筑。系统根据公开性知识和专家经验,考虑水稻类型、水稻长势、成虫迁入期早迟、迁入高峰期数量和气候条件等因子,对宁国县稻纵卷叶螟主害代发生期和发生趋势进行预测,并提供决策方案,为稻纵卷叶螟的管理提供一种实用的工具。系统采用自然语言提问和菜单选择相结合的方式同用户交互。系统能对推论等给出解释,令用户信服。系统还具有良好的开发机,对知识库的增删修改都极为方便,系统的不同版本可在不同机型和操作系统支持下运行。
MSRLR, an expert system for management of the rice leafroller, Cnaph-alocrocis medinalis Guenee, was built with NEW, an knowledge engineeringlanguage developed by Department of Computer Science, Nanjing University,which is a fore- and back ward-chaining, rule- and fram-based one, withprobabilities and arithmetic. The system can forcast the occurrence degree ofthe fourth generation of the rice leafroller, C. medinalis Guenee, and providesthe management schedul for controlling the pest insect after getting theinformation about (1) planted rice type, (2) Plant growth situation in thefields, (3) appearing date of the moth peak of the fourth generation,(4) number of the adult at the peak,and, (5) weather conditions from users.The different versions of the MSRLR system make it possible to be employedunder different kinds of microcomputers and operating systems. The interfaceof the natural Chinese language combined with menu is convenient for users.The system's development engine,also called knowledge acquisition subsystem,provides users with opportunities of adding, cancelling and modifying therules in the knowledge base. The explanation function of the system canstate how the MSRLR can deduce a conclusion and why the system asks aquestion for users during the course of referencing.
关键词
稻纵卷叶螟
专家系统
管理决策
Expert system
Cnaphalocrocis medinalis Guenee
Forecasting
Management decision
