地学数据本体研究与发展思考

分散、多源、异构的地学数据资源的整合集成、交换共享、挖掘利用必须以本体为支撑解决语义异构问题.针对当前缺乏以数据为核心能够支撑数据资源全生命周期操作处理本体库的问题,提出并开展了地学数据本体的研究与构建实践,并进一步分析了地学数据本体的应用领域和重点发展方向.地学数据本体的实质就是地学数据资源各类特征的本体,通过对地学数据资源内容、时间、空间、形态、来源等方面的概念、实例及其关系的形式化描述,实现无歧义的语义表达与推理,可有效支撑地学数据资源的分类编码、集成建库、语义搜索、关联数据和挖掘分析等应用.未来地学数据本体应进一步加强自动构建更新方法的研究,加快完善地学数据本体库,大力推动地学数据本体的应用.

Research and Development of Geoscience Data Ontology

The semantic heterogeneous problem must be solved based on ontology to integrate,exchange,share,and mining as well as the use of decentralized,multi-source and heterogeneous geoscience data resources.Aiming at the problem that existed ontology,which doesn't take geoscience data as the core and cannot support the data resource's whole lifecycle operation processing,this paper puts forward research and construction practice on geoscience data ontology,and further analyzes the application fields and key development directions of geoscience data ontology.The essence of geoscience data ontology is a normalized specification on geoscience data's various characteristics,including content,time,space,pattern,source and so on,which logically consists of class,instance and relationship between them.Based on geoscience data ontology,semantics of geoscience data can be expressed and reasoned unambiguously,which then can effectively support application of geoscience data,including classification and coding,data integration and database construction,accurate search,data linked,date mining and others.In future,Followingresearch ongeoscience data ontology should be carried out that include methods of automatic construction and updating,building aperfect geoscience ontology database and promoting the application of geoscience ontology.