Semantic analysis and retrieval of spatial data based on the uncertain ontology model in Digital Earth

Semantic analysis and retrieval of spatial data based on the uncertain ontology model in Digital Earth
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数字地球中基于不确定本体模型的空间数据语义分析与检索

DOI:
10.1080/17538947.2014.927538
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发表时间:
2015-01
影响因子:
5.1
通讯作者:
Aizhi Wu
Aizhi Wu
中科院分区:
地球科学1区
文献类型:
--
作者:
Shengtao Sun;Lizhe Wang;Rajiv Ranjan;Aizhi Wu

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元数据是关于数据的信息和描述。在数字地球中,元数据变得多样化和异构化,具有许多不确定性。研究了元数据生成和应用中的不确定性特征,基于语义定量度量方法--基于可能性逻辑和概率统计的语义关系定量度量(SRQ-PP),描述了元数据生成和应用中的两类不确定性(不完全和不精确)。此外,在案例研究中,我们应用两种类型的定量测量的基础上SRQ-PP描述不完整(不确定)的知识和不精确(模糊)的信息分别在空间数据服务检索,这反过来又有助于识别额外的潜在数据资源,并提供一个定量分析的结果。
Metadata are the information about and description of data. In Digital Earth, metadata become variant and heterogeneous with many uncertainties. This paper studies uncertain features in the generation and application of metadata, and two types of uncertainties (incomplete and imprecise) are described based on semantic quantitative measurement method semantic relationship quantitative measurement based on possibilistic logic and probability statistic (SRQ-PP). Moreover, in the case study, we apply two types of quantitative measurements based on SRQ-PP to describe incomplete (uncertain) knowledge and imprecise (vague) information separately in spatial data service retrieval, which in turn is helpful to identify additional potential data resources and provide a quantitative analysis of the results.
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影响因子: --
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