A Task‐Based Ontology Approach to Automate Geospatial Data Retrieval
A Task‐Based Ontology Approach to Automate Geospatial Data Retrieval
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DOI：
10.1111/j.1467-9671.2007.01050.x
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发表时间：
2007-06
影响因子：
2.4
通讯作者：
N. Wiegand;Cassandra García
中科院分区：
文献类型：
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作者：
N. Wiegand;Cassandra García
本文提出了一种基于任务和语义Web的方法来查找地理空间数据。该项目的目的是改进数据发现并促进数据源的自动检索。这里介绍的工作有助于创建一个地理空间语义网的开端。其目的是创建一个系统，为在面临紧急响应或规划活动等任务时搜索数据的应用程序用户提供适当的结果。在我们的基于任务的系统中，我们形式化了任务类型（包括应急响应）与这些任务所需的数据源类型之间的关系。领域知识，包括描述数据源的标准，记录在本体语言。利用本体，可以进行推理以推断各种类型的信息，包括哪些数据源满足用于特定任务的特定标准。这里提出的愿景是，在紧急情况下，例如，用户访问基于Web的应用程序并选择紧急情况的类型和地理区域。然后，应用程序返回所需的特定地理空间数据的类型和位置（URL）。我们探讨的能力和局限性的OWL Web本体语言沿着与其他语义Web技术，用于此目的。
This paper presents a task‐based and Semantic Web approach to find geospatial data. The purpose of the project is to improve data discovery and facilitate automatic retrieval of data sources. The work presented here helps create the beginnings of a Geospatial Semantic Web. The intent is to create a system that provides appropriate results to application users who search for data when facing tasks such as emergency response or planning activities. In our task‐based system, we formalize the relationships between types of tasks, including emergency response, and types of data sources needed for those tasks. Domain knowledge, including criteria describing data sources, is recorded in an ontology language. With the ontology, reasoning can be done to infer various types of information including which data sources meet specific criteria for use in particular tasks. The vision presented here is that in an emergency, for example, a user accesses a Web‐based application and selects the type of emergency and the geographic area. The application then returns the types and locations (URLs) of the specific geospatial data needed. We explore the abilities and limitations of the OWL Web Ontology Language along with other Semantic Web technologies for this purpose.