Administering the Semantic Web

Author(s):  
Bhavani Thuraisingham ◽  
Natasha Tsybulnik ◽  
Ashraful Alam

The Semantic Web is essentially a collection of technologies to support machine understandable Web pages as well as Information Interoperability. There has been much progress made on the Semantic Web including standards for eXtensible Markup Language, Resource Description Framework and Onotlogies. However, administration policies and techniques for enforcing them have received little attention. These policies include policies for security, privacy, data quality, integrity, trust and timely information processing. This chapter discusses administration policies for the Semantic Web as well as techniques for enforcing them. In particular, the authors will discuss an approach for ensuring confidentiality, privacy and trust for the Semantic Web. We will also discuss the inference and privacy problems within the context of administration policies.

Author(s):  
Bhavani Thuraisingham ◽  
Natasha Tsybulnik ◽  
Ashraful Alam

The Semantic Web is essentially a collection of technologies to support machine-understandable Web pages as well as Information Interoperability. There has been much progress made on the Semantic Web, including standards for eXtensible Markup Language, Resource Description Framework, and Ontologies. However, administration policies and techniques for enforcing them have received little attention. These policies include policies for security, privacy, data quality, integrity, trust, and timely information processing. This article discusses administration policies for the Semantic Web as well as techniques for enforcing them. In particular, we will discuss an approach for ensuring confidentiality, privacy, and trust for the Semantic Web. We will also discuss the inference and privacy problems within the context of administration policies.


Author(s):  
Kaleem Razzaq Malik ◽  
Tauqir Ahmad

This chapter will clearly show the need for better mapping techniques for Relational Database (RDB) all the way to Resource Description Framework (RDF). This includes coverage of each data model limitations and benefits for getting better results. Here, each form of data being transform has its own importance in the field of data science. As RDB is well known back end storage for information used to many kinds of applications; especially the web, desktop, remote, embedded, and network-based applications. Whereas, EXtensible Markup Language (XML) in the well-known standard for data for transferring among all computer related resources regardless of their type, shape, place, capability and capacity due to its form is in application understandable form. Finally, semantically enriched and simple of available in Semantic Web is RDF. This comes handy when with the use of linked data to get intelligent inference better and efficient. Multiple Algorithms are built to support this system experiments and proving its true nature of the study.


Author(s):  
Adélia Gouveia ◽  
Jorge Cardoso

The World Wide Web (WWW) emerged in 1989, developed by Tim Berners-Lee who proposed to build a system for sharing information among physicists of the CERN (Conseil Européen pour la Recherche Nucléaire), the world’s largest particle physics laboratory. Currently, the WWW is primarily composed of documents written in HTML (hyper text markup language), a language that is useful for visual presentation (Cardoso & Sheth, 2005). HTML is a set of “markup” symbols contained in a Web page intended for display on a Web browser. Most of the information on the Web is designed only for human consumption. Humans can read Web pages and understand them, but their inherent meaning is not shown in a way that allows their interpretation by computers (Cardoso & Sheth, 2006). Since the visual Web does not allow computers to understand the meaning of Web pages (Cardoso, 2007), the W3C (World Wide Web Consortium) started to work on a concept of the Semantic Web with the objective of developing approaches and solutions for data integration and interoperability purpose. The goal was to develop ways to allow computers to understand Web information. The aim of this chapter is to present the Web ontology language (OWL) which can be used to develop Semantic Web applications that understand information and data on the Web. This language was proposed by the W3C and was designed for publishing, sharing data and automating data understood by computers using ontologies. To fully comprehend OWL we need first to study its origin and the basic blocks of the language. Therefore, we will start by briefly introducing XML (extensible markup language), RDF (resource description framework), and RDF Schema (RDFS). These concepts are important since OWL is written in XML and is an extension of RDF and RDFS.


2016 ◽  
Vol 35 (1) ◽  
pp. 51 ◽  
Author(s):  
Juliet L. Hardesty

Metadata, particularly within the academic library setting, is often expressed in eXtensible Markup Language (XML) and managed with XML tools, technologies, and workflows. Managing a library’s metadata currently takes on a greater level of complexity as libraries are increasingly adopting the Resource Description Framework (RDF). Semantic Web initiatives are surfacing in the library context with experiments in publishing metadata as Linked Data sets and also with development efforts such as BIBFRAME and the Fedora 4 Digital Repository incorporating RDF. Use cases show that transitions into RDF are occurring in both XML standards and in libraries with metadata encoded in XML. It is vital to understand that transitioning from XML to RDF requires a shift in perspective from replicating structures in XML to defining meaningful relationships in RDF. Establishing coordination and communication among these efforts will help as more libraries move to use RDF, produce Linked Data, and approach the Semantic Web.


2019 ◽  
Vol 5 (1) ◽  
pp. 65-78
Author(s):  
Janailton Lopes Sousa ◽  
Paulo George Miranda Martins ◽  
Rogério Aparecido Sá Ramalho

A partir do desenvolvimento das tecnologias de informação novas possibilidades de representação foram incorporadas ao ambiente Web, entre os principais padrões desenvolvidos nas últimas décadas e que têm influenciado as práticas profissionais na área de Ciência da Informação pode-se destacar a linguagem eXtensible Markup Language (XML) e o Resource Description Framework (RDF). Ao longo dos últimos anos, tais tecnologias têm revolucionado a forma como manipulamos recursos informacionais, contudo, é possível observar que muitos profissionais da área de Ciência da Informação ainda possuem dificuldades em relação ao entendimento e utilização destes padrões. Neste sentido, este artigo apresenta uma pesquisa em andamento com o objetivo de descrever as principais características dos padrões XML e RDF, analisando os aspectos conceituais que fundamentam tais tecnologias sob a perspectiva da área de Ciência da Informação. Trata-se de um estudo teórico e exploratório, realizado mediante levantamento bibliográfico sobre a temática em questão, revisitando a literatura da área de Ciência da Informação e documentos técnicos publicados pelo W3C relacionados aos padrões analisados. Como resultados são apresentados sucintamente algumas das relações existentes entre os fundamentos que norteiam o desenvolvimento de tais padrões e conceitos da área de Ciência da Informação, no intuito de favorecer uma maior discussão desta temática a contribuir para o aprimoramento profissional em relação às novas tecnologias de representação.


Author(s):  
Kaleem Razzaq Malik ◽  
Tauqir Ahmad

This chapter will clearly show the need for better mapping techniques for Relational Database (RDB) all the way to Resource Description Framework (RDF). This includes coverage of each data model limitations and benefits for getting better results. Here, each form of data being transform has its own importance in the field of data science. As RDB is well known back end storage for information used to many kinds of applications; especially the web, desktop, remote, embedded, and network-based applications. Whereas, EXtensible Markup Language (XML) in the well-known standard for data for transferring among all computer related resources regardless of their type, shape, place, capability and capacity due to its form is in application understandable form. Finally, semantically enriched and simple of available in Semantic Web is RDF. This comes handy when with the use of linked data to get intelligent inference better and efficient. Multiple Algorithms are built to support this system experiments and proving its true nature of the study.


Author(s):  
Silvana Drumond Monteiro

Desde o anúncio da Web Semântica, até o presente momento, muitas tecnologias e inovações foram desenvolvidas para dar corpo e efetividade ao conceito. Essa teia de significações é composta por linguagens e tecnologias semânticas, como o XML (eXtensible Markup Language), RDF (Resource Description Framework), Declarações, entre outras que estruturam os dados que perambulam pelo ciberespaço, formando grandes bases de conhecimento, como o Wikidata (Wikimedia Foundation). A lógica principal da Web Semântica está em descrever as entidades (coisas) do mundo real e vinculá-las a outras, para que essa rede de significações possa ser ativada, recuperada e interpretada pelas máquinas e humanos.  A pesquisa de delineamento documental teve como corpus de pesquisa o Wikidata. A investigação visou perscrutar essa base para apreensão da estruturação de metadados para responder a questão: que tipo de Semântica estaria sendo produzida em uma base de conhecimento? Como resultado, observou-se que a Semântica Formal é a base para a geração de metadados, entretanto, no paradigma pós-moderno, o sentido – e a própria Semântica - são um fenômeno sociotécnico no ciberespaço.


Author(s):  
Franck Cotton ◽  
Daniel Gillman

Linked Open Statistical Metadata (LOSM) is Linked Open Data (LOD) applied to statistical metadata. LOD is a model for identifying, structuring, interlinking, and querying data published directly on the web. It builds on the standards of the semantic web defined by the W3C. LOD uses the Resource Description Framework (RDF), a simple data model expressing content as predicates linking resources between them or with literal properties. The simplicity of the model makes it able to represent any data, including metadata. We define statistical data as data produced through some statistical process or intended for statistical analyses, and statistical metadata as metadata describing statistical data. LOSM promotes discovery and the meaning and structure of statistical data in an automated way. Consequently, it helps with understanding and interpreting data and preventing inadequate or flawed visualizations for statistical data. This enhances statistical literacy and efforts at visualizing statistics.


Author(s):  
Giorgos Laskaridis ◽  
Konstantinos Markellos ◽  
Penelope Markellou ◽  
Angeliki Panayiotaki ◽  
Athanasios Tsakalidis

The emergence of semantic Web opens up boundless new opportunities for e-business. According to Tim Berners-Lee, Hendler, and Lassila (2001), “the semantic Web is an extension of the current Web in which information is given well-defined meaning, better enabling computers and people to work in cooperation”. A more formal definition by W3C (2001) refers that, “the semantic Web is the representation of data on the World Wide Web. It is a collaborative effort led by W3C with participation from a large number of researchers and industrial partners. It is based on the resource description framework (RDF), which integrates a variety of applications using eXtensible Markup Language (XML) for syntax and uniform resource identifiers (URIs) for naming”. The capability of the semantic Web to add meaning to information, stored in such way that it can be searched and processed as well as recent advances in semantic Web-based technologies provide the mechanisms for semantic knowledge representation, exchange and collaboration of e-business processes and applications.


2011 ◽  
Vol 17 (2) ◽  
pp. 116-126 ◽  
Author(s):  
Arnaud Gaudinat ◽  
Sarah Cruchet ◽  
Celia Boyer ◽  
Pravir Chrawdhry

We present an experimental mechanism for enriching web content with quality metadata. This mechanism is based on a simple and well-known initiative in the field of the health-related web, the HONcode. The Resource Description Framework (RDF) format and the Dublin Core Metadata Element Set were used to formalize these metadata. The model of trust proposed is based on a quality model for health-related web pages that has been tested in practice over a period of thirteen years. Our model has been explored in the context of a project to develop a research tool that automatically detects the occurrence of quality criteria in health-related web pages.


Sign in / Sign up

Export Citation Format

Share Document