摘要
针对农产品安全与溯源的需要,结合当前元数据模型化与知识化不断增强的趋势,文章在分析了面向协同计算的农业信息资源元数据特性的前提下,综合考虑了农业领域知识特征、分类以及表达、网络农业信息的实体化过程模型与信息树模型、农村领域知识的金字塔表示模型、以及网络农村信息资源的形态演化模型等内容,重点分析了农业领域知识的组织结构与表达形式,借鉴Dublin Core、FGDC、GILS等现有元数据标准,设计并实现了包括20个核心元素、22个扩展元素的农业信息资源元数据标准,并实现了其应用体系。
To meet the demands of traceability and quality management of agricultural food,with considering the model-oriented and knowledge-based trends of current metadata study,the paper designs and implements a cooperative-computing-oriented metadata standard(Metadata Standard of Agricultural Information Resources,MSAIR) with 20 core elements and 22 extended elements.Some relative studies are discussed in detail,including the characteristics,classification and representation of agricultural knowledge,the agricultural network information embodiment procedure model and information growing tree model,the pyramid representation model of rural knowledge organization,and the morphology evolvement model of rural network information.Some public metadata standards,such as Dublin Core,FGDC and GILS,are also contributed to MSAIR.Finally,a prototype of an application of MSAIR is designed and implemented to illustrate the typical pattern of MSAIR.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2008年第S2期1-6,共6页
Transactions of the Chinese Society of Agricultural Engineering
基金
北京科技新星计划项目支持(2006B27)
国家"十一五"科技支撑项目课题(2006BAJ05A09
2006BAD10A05)
关键词
农产品溯源
农村信息
协同计算
元数据
知识分类
agri-food traceability
agricultural information
cooperative computing
metadata
knowledge classification
