1,720,958 research outputs found
XML-Based RDF Data Management for XPath Query Language
No full textThe Semantic Web is an extention of the current Web that will allow to find, share and combine information more easily. The meaning in the Semantic Web is mostly represented by Resource Description Framework (RDF). To harvest such power requires robust and scalable data repositories that can store RDF data. Most of the existing RDF storage techniques rely on relation model and relational database technologies for these tasks. The mis-match between the graph model of the RDF data and the rigid 2D tables of relational model jeopardizes the scalability of such repositories and frequently renders a repository inefficient for some types of data and queries. This paper proposed a system that can store RDF data in the XML repository and discuss the basic idea of conversion from RDF Schema to XML Schema and XPath queries for extract information from XML database.DOI: http://dx.doi.org/10.11591/ij-ict.v2i1.150
XML-Based RDF Data Management for XPath Query Language
Get PDFThe Semantic Web is an extention of the current Web that will allow to find, share and combine information more easily. The meaning in the Semantic Web is mostly represented by Resource Description Framework (RDF). To harvest such power requires robust and scalable data repositories that can store RDF data. Most of the existing RDF storage techniques rely on relation model and relational database technologies for these tasks. The mis-match between the graph model of the RDF data and the rigid 2D tables of relational model jeopardizes the scalability of such repositories and frequently renders a repository inefficient for some types of data and queries. This paper proposed a system that can store RDF data in the XML repository and discuss the basic idea of conversion from RDF Schema to XML Schema and XPath queries for extract information from XML database.DOI: http://dx.doi.org/10.11591/ij-ict.v2i1.150
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Efficient Query Processing for RDF data Using XML Repository
Get PDFThe Semantic Web is an extension of thecurrent Web that will allow to find, share, andcombine information more easily. To harvestsuch power requires robust and scalable datarepositories that can store RDF data. Most of theexisting RDF storage techniques rely on relationmodel and relational database technologies forthese tasks. The mis-match between the graphmodel of the RDF data and the rigid 2D tables ofrelational model jeopardizes the scalability ofsuch repositories and frequently renders arepository inefficient for some types of data andqueries. In this paper, we propose a system thatcan store RDF data in the XML repository andperform the efficient XML query processing. Wediscuss the basic idea of serializing RDF datainto RDF/XML and mapping of RDF/XML toXML document and then algorithm for theefficient XML query processing to theperformance of XML query evaluation
Transforming RDF via RDF Schema into XML Documents for XPath Query Language
Get PDFThe Semantic Web is an extension of the current Web that will allow to find, share and combine information more easily. To harvest such power requires robust and scalable data repositories that can store RDF data. Most of the existing RDF storage techniques rely on relation model and relational database technologies for these tasks. The mis-match between the graph model of the RDF data and the rigid 2D tables of relational model jeopardized the scalability of such repositories and frequently renders a repository inefficient for some types of data and queries. This paper proposes the rules that can transform RDF data into XML document. These papers discusses the idea of collection of subject, predicate and object from RDF graph model and this collection is used to transform RDF data into XML documents and store in the XML repository and extract the XML data by the XML query language
A Semantic Mapping Approach for Transforming DTD into RDFS/OWL
Get PDFXML (eXtensible Markup Language) and itsschema language are becoming a primary dataexchange format on the current web. In the nextgeneration of the Semantic Web, the drawbacks ofXML and its schema are appeared. Most data on theWeb, however, is in the XML format, but using XMLrequires applications to understand the format ofeach data source that they access. To achieve thebenefits of the Semantic Web involves transformingXML into the Semantic Web language, RDFS/OWL, aprocess that generally has manual or only semiautomaticcomponents. This paper proposes a set ofrules to map DTD to RDFS ontology. This approachmainly considers the constraints of DTD to mapRDFS/OWL. Constraints are a fundamental part ofthe semantics of the data. So, this approach is toensure the integrity of the structure and provide moremeaning for the original DTD while transformingthem into RDF Schema
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Query Processing for RDF data Using XML Repository
Get PDFThe Semantic Web, which represents a web ofknowledge, offers us new opportunities to search forknowledge and information. To harvest such searchpower requires robust and scalable datarepositories that can store RDF data. Most of theexisting RDF storage techniques rely on relationmodel and relational database technologies forthese tasks. The mis-match between the graphmodel of the RDF data and the rigid 2D tables ofrelational model jeopardizes the scalability of suchrepositories and frequently renders a repositoryinefficient for some types of data and queries. Inthis paper, we propose a system that can store RDFdata in the XML repository. This system serializesRDF data into RDF/XML and then maps into aXML document. We discuss the basic idea ofserializing RDF data into RDF/XML and thenmapping of RDF/XML to XML document
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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