The XML and Semantic Web Worlds: Technologies, Interoperability and Integration. A Survey of the State of the Art
Nikos Bikakis, Chrisa Tsinaraki, Nektarios Gioldasis, Ioannis Stavrakantonakis, Stavros Christodoulakis
备注：
This paper appears in "Semantic Hyper/Multi-media Adaptation: Schemes and Applications", Springer 2013. arXiv admin note: text overlap with arXiv:1311.0536
In the context of the emergent Web of Data, a large number of organizations, institutes and companies (e.g., DBpedia, Geonames, PubMed ACM, IEEE, NASA, BBC) adopt the Linked Data practices and publish their data utilizing Semantic Web (SW) technologies. On the other hand, the dominant standard for information exchange in the Web today is XML. Many international standards (e.g., Dublin Core, MPEG-7, METS, TEI, IEEE LOM) have been expressed in XML Schema resulting to a large number of XML datasets. The SW and XML worlds and their developed infrastructures are based on different data models, semantics and query languages. Thus, it is crucial to provide interoperability and integration mechanisms to bridge the gap between the SW and XML worlds. In this chapter, we give an overview and a comparison of the technologies and the standards adopted by the XML and SW worlds. In addition, we outline the latest efforts from the W3C groups, including the latest working drafts and recommendations (e.g., OWL 2, SPARQL 1.1, XML Schema 1.1). Moreover, we present a survey of the research approaches which aim to provide interoperability and integration between the XML and SW worlds. Finally, we present the SPARQL2XQuery and XS2OWL Frameworks, which bridge the gap and create an interoperable environment between the two worlds. These Frameworks provide mechanisms for: (a) Query translation (SPARQL to XQuery translation); (b) Mapping specification and generation (Ontology to XML Schema mapping); and (c) Schema transformation (XML Schema to OWL transformation).
The SPARQL2XQuery Interoperability Framework. Utilizing Schema Mapping, Schema Transformation and Query Translation to Integrate XML and the Semantic Web
Web of Data是一个开放的环境，由来自不同领域的大量相互链接的大型RDF数据集组成。在这种环境中，组织和公司采用利用语义Web（SW）技术的关联数据实践，以便发布他们的数据并提供SPARQL端点（即，基于SPARQL的搜索服务）。另一方面，当今Web中信息交换的主导标准是XML。SW和XML世界及其开发的基础设施基于不同的数据模型、语义和查询语言。因此，至关重要的是开发互操作性机制，允许Web of Data用户从他们自己的工作环境中使用SPARQL访问XML数据集。期望所有现有的遗留数据（例如，关系、XML等）将转换为软件数据。因此，将遗留数据发布为关联数据并在其上提供SPARQL端点已成为一个主要的研究挑战。在这个方向上，我们引入了SPARQL 2XQuery框架，它创建了一个可互操作的环境，SPARQL查询自动转换为XQuery查询，以便在Web上访问XML数据。SPARQL 2XQuery框架为OWL-RDF/S到XML Schema映射的表达提供了一个映射模型，也为SPARQL到XQuery的转换提供了一种方法。为此，我们的框架支持本体和XML模式之间的手动和自动映射规范。在自动映射规范场景中，SPARQL 2XQuery利用将XML模式转换为OWL本体的XS 2 OWL组件。最后，进行了大量的实验，以评估模式转换，映射生成，查询翻译和查询评估效率，使用真实和合成…
Supporting SPARQL Update Queries in RDF-XML Integration
Web of Data鼓励组织和公司根据关联数据实践发布数据，并提供SPARQL端点。另一方面，信息交换的主导标准是XML。SPARQL 2XQuery框架专注于自动转换XQuery表达式中的SPARQL查询，以便通过Web访问XML数据。在本文中，我们概述了我们正在进行的工作，支持更新查询的RDF-XML集成方案。
Analysing complexity of XML Schemas in geospatial web services
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The data warehousing and OLAP technologies are now moving onto handling complex data that mostly originate from the Web. However, intagrating such data into a decision-support process requires their representation under a form processable by OLAP and/or data mining techniques. We present in this paper a complex data warehousing methodology that exploits XML as a pivot language. Our approach includes the integration of complex data in an ODS, under the form of XML documents; their dimensional modeling and storage in an XML data warehouse; and their analysis with combined OLAP and data mining te…
With XML becoming an ubiquitous language for data interoperability purposes in various domains, efficiently querying XML data is a critical issue. This has lead to the design of algebraic frameworks based on tree-shaped patterns akin to the tree-structured data model of XML. Tree patterns are graphic representations of queries over data trees. They are actually matched against an input data tree to answer a query. Since the turn of the twenty-first century, an astounding research effort has been focusing on tree pattern models and matching optimization (a primordial issue). This paper is a com…
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