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The Query Translation Landscape: a Survey [article]

Mohamed Nadjib Mami, Damien Graux, Harsh Thakkar, Simon Scerri, Sören Auer, Jens Lehmann
2019 arXiv   pre-print
In this article, we survey more than forty query translation methods and tools for popular query languages, and classify them according to eight criteria.  ...  Both industry and research communities have been keen to develop such techniques, which require the translation of a chosen 'universal' query language to the various data model specific query languages  ...  REDUCED is translated into a NO-OP. XPath/XQuery-to-SPARQL: [21] presents a translation method that includes data transformation from XML to RDF.  ... 
arXiv:1910.03118v1 fatcat:wsww5vhlwjhqjlouibetb6mo3a

Querying XML Data with SPARQL [chapter]

Nikos Bikakis, Nektarios Gioldasis, Chrisa Tsinaraki, Stavros Christodoulakis
2009 Lecture Notes in Computer Science  
The mappings are used to automatically translate SPARQL queries to semantically equivalent XQuery queries which are used to access the XML databases.  ...  We present the algorithms and the implementation of SPARQL2XQuery framework, which is used for answering SPARQL queries over XML databases.  ...  Fig. 4 shows how a given SPARQL query is translated by our framework into a semantically equivalent XQuery.  ... 
doi:10.1007/978-3-642-03573-9_32 fatcat:6dxgtqhtbvba5jyscai7echpaq

The SPARQL2XQuery Interoperability Framework. Utilizing Schema Mapping, Schema Transformation and Query Translation to Integrate XML and the Semantic Web [article]

Nikos Bikakis, Chrisa Tsinaraki, Ioannis Stavrakantonakis, Nektarios Gioldasis, Stavros Christodoulakis
2014 arXiv   pre-print
In this direction, we introduce the SPARQL2XQuery Framework which creates an interoperable environment, where SPARQL queries are automatically translated to XQuery queries, in order to access XML data  ...  Finally, extensive experiments have been conducted in order to evaluate the schema transformation, mapping generation, query translation and query evaluation efficiency, using both real and synthetic datasets  ...  Finally, a method that transforms XML data into RDF and translates XPath queries into SPARQL, has been proposed in [93] [94] [95] .  ... 
arXiv:1311.0536v3 fatcat:hrwu4zaarngqpcpfti2mrh63v4

The SPARQL2XQuery interoperability framework

Nikos Bikakis, Chrisa Tsinaraki, Ioannis Stavrakantonakis, Nektarios Gioldasis, Stavros Christodoulakis
2014 World wide web (Bussum)  
Then, the query translation mechanism will be used to translate the SPARQL queries posed over the generated ontology, to XQuery queries over the XML data. 2 nd Scenario.  ...  These mappings are then exploited by the query translation mechanism, in order to translate the SPARQL queries posed over the Organization ontologies, to XQuery queries to be evaluated over the XML data  ...  Finally, a method that transforms XML data into RDF and translates XPath queries into SPARQL, has been proposed in [93] [94] [95] .  ... 
doi:10.1007/s11280-013-0257-x fatcat:cb7hq37tufa33nmfwuqzxkxff4

Semantic Based Access over XML Data [chapter]

Nikos Bikakis, Nektarios Gioldasis, Chrisa Tsinaraki, Stavros Christodoulakis
2009 Lecture Notes in Computer Science  
In this paper we describe the SPARQL2XQuery framework, which translates the SPARQL queries to semantically equivalent XQuery queries for accessing XML databases from the Semantic Web environment.  ...  Thus, SPARQL queries may have to be submitted and evaluated against existing XML or relational databases, and the results transferred back to be assembled for further processing.  ...  Fig. 4 shows how a given SPARQL query is translated by our framework into a semantically equivalent XQuery query.  ... 
doi:10.1007/978-3-642-04754-1_27 fatcat:wwu2ahis4jhzjiqcl32ic4avju

SPARQL2XQuery 2.0: Supporting Semantic-based queries over XML data

Ioannis Stavrakantonakis, Chrisa Tsinaraki, Nikos Bikakis, Nektarios Gioldasis, Stavros Christodoulakis
2010 2010 Fifth International Workshop Semantic Media Adaptation and Personalization  
We present in this paper SPARQL2XQuery 2.0, a framework that allows expressing semantic queries on top of XML data through the translation of SPARQL queries in XQuery syntax.  ...  needed that will allow querying multimedia content and service descriptions in a uniform way in both the XML and Semantic Web environments.  ...  queries posed over time by the users that see the generated ontology are translated to XQuery expressions. d) The query results are transformed into the desired format (SPARQL Query Result XML Format  ... 
doi:10.1109/smap.2010.5706860 dblp:conf/smap/StavrakantonakisTBGC10 fatcat:sae7fxjafngedgg5yfy4xv672q

The XML and Semantic Web Worlds: Technologies, Interoperability and Integration: A Survey of the State of the Art [chapter]

Nikos Bikakis, Chrisa Tsinaraki, Nektarios Gioldasis, Ioannis Stavrakantonakis, Stavros Christodoulakis
2013 Studies in Computational Intelligence  
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 (  ...  The SW and XML worlds and their developed infrastructures are based on different data models, semantics and query languages.  ...  Also, a method that transforms XML data to RDF and translates XPath queries into SPARQL has been proposed in [28] [29] [30].  ... 
doi:10.1007/978-3-642-28977-4_12 fatcat:y3ns77rp6nawxhka7z3wrr6ove

SPARQL with XQuery-based Filtering [article]

Takahiro Komamizu
2020 arXiv   pre-print
For efficient query processing of the combination of SPARQL and XQuery, a database theory-based query optimization is proposed.  ...  In particular, an extension to SPARQL, XQueryFILTER, which enables XQuery as a filter in SPARQL is proposed.  ...  [6] have proposed a translation-based XPath embedding for SPARQL in order to enable XPath processing in SPARQL query processor.  ... 
arXiv:2009.06194v1 fatcat:r425a7te7re7remqvvnrchcvny

Supporting SPARQL Update Queries in RDF-XML Integration [article]

Nikos Bikakis, Chrisa Tsinaraki, Ioannis Stavrakantonakis, Stavros Christodoulakis
2014 arXiv   pre-print
The SPARQL2XQuery Framework focuses on the automatic translation of SPARQL queries in XQuery expressions in order to access XML data across the Web.  ...  In this paper, we outline our ongoing work on supporting update queries in the RDF-XML integration scenario.  ...  Using these mappings, the SPARQL queries are translated on the fly into XQuery expressions, which access the XML data.  ... 
arXiv:1408.2800v2 fatcat:lmsb3hcyurettpcscax427kiwq

Web Queries: From a Web of Data to a Semantic Web [chapter]

François Bry, Tim Furche, Klara Weiand
2009 Lecture Notes in Computer Science  
QLs 53 Stand-alone Translation Keyword-only 2 2 Label-keyword 0 1 Keyword-enhanced -- -- Queries as Keywords RDF Keyword QLs 53 Stand-alone Translation Keyword-only 2 2 Label-keyword  ...  stand-alone systems translation to conventional query language keyword-enhanced query languages 50 Queries as Keywords Classification of Keyword QLs Complexity of atomic queries keyword-only  ...  Queries as Keywords  ... 
doi:10.1007/978-3-642-04409-0_5 fatcat:edjvavmx6jftjftcfetdbleuwm

Streaming transformation of XML to RDF using XPath-based mappings

Jyun-Yao Huang, Christoph Lange, Sören Auer
2015 Proceedings of the 11th International Conference on Semantic Systems - SEMANTICS '15  
We introduce an XML to RDF transformation approach, which is based on mappings comprising RDF triple templates that employ simple XPath expressions.  ...  Due to the restricted XPath expressions, which can be evaluated against a stream of XML data our implementation can handle extremely large input XML files.  ...  XSPARQL proposed a global view approach using dynamic query translation to convert different data formats to RDF. However, users have to learn other languages in addition to SPARQL and XQuery.  ... 
doi:10.1145/2814864.2814880 dblp:conf/i-semantics/Huang0A15 fatcat:uf4nsi2abzaddjjbeb6lpxsxlq

Four Lessons in Versatility or How Query Languages Adapt to the Web [chapter]

François Bry, Tim Furche, Benedikt Linse, Alexander Pohl, Antonius Weinzierl, Olga Yestekhina
2009 Lecture Notes in Computer Science  
Yet this exposition has fractured the Web into islands of data, each in different Web formats: Some providers choose XML, others RDF, again others JSON or OWL, for their data, even in similar domains.  ...  With Xcerpt we have developed a rule-and pattern based query language that aims to give shield application builders from much of this complexity: In a single query language XML and RDF data can be accessed  ...  Obviously, in this case the use of XPath affords little gain compared to Xcerpt only queries, but the same technique can be applied to integrate XPath into SPARQL or SPARQL into XQuery.  ... 
doi:10.1007/978-3-642-04581-3_2 fatcat:tyjxlcot7bgztckkzfw6vqq24m

A RPL through RDF: Expressive Navigation in RDF Graphs [chapter]

Harald Zauner, Benedikt Linse, Tim Furche, François Bry
2010 Lecture Notes in Computer Science  
Like XPath, RPL does not allow variables in path expressions and thus, all RPL queries are tree queries.  ...  The semantics of RPL is specified by translation into ENREs, an extended version of nSPARQL's nested regular expressions (NREs) [8] .  ... 
doi:10.1007/978-3-642-15918-3_25 fatcat:jregzsalazfotflguyf22qqeai

Mapping between RDF and XML with XSPARQL

Stefan Bischof, Stefan Decker, Thomas Krennwallner, Nuno Lopes, Axel Polleres
2012 Journal on Data Semantics  
In this paper we present the XSPARQL language that, by combining XQuery and SPARQL, allows to query XML and RDF data using the same framework and transform data from one format into the other.  ...  format into another.  ...  The XPath queries are, in turn, translated into SPAR-QL queries, and the result of the execution of the SPARQL query is then translated into a format equivalent to the result of the XPath query.  ... 
doi:10.1007/s13740-012-0008-7 fatcat:ennvvfrfmzgobft7f2iirb7i4q

MINDS: A Translator to Embed Mathematical Expressions Inside SPARQL Queries [chapter]

Damien Graux, Gezim Sejdiu, Claus Stadler, Giulio Napolitano, Jens Lehmann
2020 Lecture Notes in Computer Science  
To offer users a more generic solution, we propose and share MINDS, a translator of mathematical expressions into SPARQL-compliant bindings which can be understood by any evaluator.  ...  MINDS thereby facilitates the query design whenever mathematical computations are needed in a SPARQL query.  ...  Conclusion In this article we introduced MINDS 18 , a translator of mathematical expressions into SPARQL bindings.  ... 
doi:10.1007/978-3-030-59833-4_7 fatcat:kjni5bwhxrb3rb73d4ca2wruui
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