基于主题图的农业模型描述与表示方法

Topic map-based description and representation of agricultural models

为了提升不同学科模型资源的共享与管理能力,提出了一种新的农业模型描述与表示方法。它以模型组件描述信息为元数据来生成不同层次主题图。首先分析农业模型特征,建立农业模型与模型组件之间的映射关系;然后,抽取农业模型组件刻面与关联描述信息,构建了农业模型组件描述模型(DM-AMC),进一步将DM-AMC表示为主题类型、关联类型、事件类型以及关联角色;最后,通过实例化并采用匹配融合算法生成了面向农业模型组件的主题图(TM-AMC)。研究以作物生育期模型为例,生成了统一描述与可动态扩展的原子主题图XTM文档。通过对农业模型信息的统一描述,并以DM-AMC为基础生成多层次、便于统一访问的TM-AMC,可提升农业模型信息的全局共享与管理能力。

In order to improve the capability of model resource sharing and management for different agricultural disciplines, a new approach to description and representation of agricultural models was proposed, which used the description information of model components as meta-data to generate the topic maps at different levels. Firstly, the characteristics of agricultural models was analyzed, the mapping relationships between agricultural models and model components were established, and then information on the facets and relationship descriptions of agricultural model components was extracted and the Description Model for Agricultural Model Components （DM-AMC） was constructed. Further, the DM-AMC was represented as topic type, association type, occurrence type and association role. Finally, the Topic Maps for Agricultural Model Components （TM-AMC） was constructed by taking example and using matching and merging algorithms. With crop phasic development model as example, the XML documents of atomic topic maps with the characters of unified description and dynamic expansion were generated. The results indicated that a unified description on agricultural model information and generation of multi-level and easy-accessed TM-AMC based on DM-AMC could enhance capability of general sharing and management with agricultural model information.