Semantic Web Tools: an Overview 7Th International CALIBER 2009 Semantic Web Tools: an Overview
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Semantic Web Core Technologies Semantic Web Core Technologies
12/20/13 Semantic Web Core Technologies Semantic Web Core Technologies Muhammad Alsharif, mhalsharif at gmail.com (A paper written under the guidance of Prof. Raj Jain) Download Abstract This is survey of semantic web primary infrastructure. Semantic web aims to link the data everywhere and make them understandable for machines as well as humans. Implementing the full vision of the semantic web has a long way to go but a number of its necessary building blocks are being standardized. In this paper, the three core technologies for linking web data, defining vocabularies, and querying information are going to be introduced and discussed. Keywords: web 3.0, semantic web, semantic web stack, resource description framework, RDF schema, web ontology language, SPARQL Table of Contents 1. Introduction 2. Semantic Web Stack 3. Linked Data 3.1. Resource Description Framework (RDF) 3.2. RDF vs XML 4. Vocabularies 4.1. RDFS 4.2. RDFS vs OWL 5. Query 5.1. SPARQL 5.2. SPARQL vs SQL 6. Summary 7. Acronyms 8. References 1. Introduction The main goal of the semantic web is to improve upon the existing “web of documents†to be a “web of dataâ€. The first version of the web (web 1.0) revolutionized the use of Internet in both academia and industry by introducing the idea of hyperlinking, which has interconnected billions of web pages over the globe and made documents accessible from multiple points. Web 2.0 has expanded over this concept by adding the user interactivity/participation element such as the dynamic creation of data on websites by content management systems (CMS) which has led to the emergence of social media such as blogs, flickr, youtube, twitter, etc. -
Mapping Spatiotemporal Data to RDF: a SPARQL Endpoint for Brussels
International Journal of Geo-Information Article Mapping Spatiotemporal Data to RDF: A SPARQL Endpoint for Brussels Alejandro Vaisman 1, * and Kevin Chentout 2 1 Instituto Tecnológico de Buenos Aires, Buenos Aires 1424, Argentina 2 Sopra Banking Software, Avenue de Tevuren 226, B-1150 Brussels, Belgium * Correspondence: [email protected]; Tel.: +54-11-3457-4864 Received: 20 June 2019; Accepted: 7 August 2019; Published: 10 August 2019 Abstract: This paper describes how a platform for publishing and querying linked open data for the Brussels Capital region in Belgium is built. Data are provided as relational tables or XML documents and are mapped into the RDF data model using R2RML, a standard language that allows defining customized mappings from relational databases to RDF datasets. In this work, data are spatiotemporal in nature; therefore, R2RML must be adapted to allow producing spatiotemporal Linked Open Data.Data generated in this way are used to populate a SPARQL endpoint, where queries are submitted and the result can be displayed on a map. This endpoint is implemented using Strabon, a spatiotemporal RDF triple store built by extending the RDF store Sesame. The first part of the paper describes how R2RML is adapted to allow producing spatial RDF data and to support XML data sources. These techniques are then used to map data about cultural events and public transport in Brussels into RDF. Spatial data are stored in the form of stRDF triples, the format required by Strabon. In addition, the endpoint is enriched with external data obtained from the Linked Open Data Cloud, from sites like DBpedia, Geonames, and LinkedGeoData, to provide context for analysis. -
Towards Ontology Based BPMN Implementation. Sophea Chhun, Néjib Moalla, Yacine Ouzrout
Towards ontology based BPMN Implementation. Sophea Chhun, Néjib Moalla, Yacine Ouzrout To cite this version: Sophea Chhun, Néjib Moalla, Yacine Ouzrout. Towards ontology based BPMN Implementation.. SKIMA, 6th Conference on Software Knowledge Information Management and Applications., Jan 2012, Chengdu, China. 8 p. hal-01551452 HAL Id: hal-01551452 https://hal.archives-ouvertes.fr/hal-01551452 Submitted on 6 Nov 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. 1 Towards ontology based BPMN implementation CHHUN Sophea, MOALLA Néjib and OUZROUT Yacine University of Lumiere Lyon2, laboratory DISP, France Natural language is understandable by human and not machine. None technical persons can only use natural language to specify their business requirements. However, the current version of Business process management and notation (BPMN) tools do not allow business analysts to implement their business processes without having technical skills. BPMN tool is a tool that allows users to design and implement the business processes by connecting different business tasks and rules together. The tools do not provide automatic implementation of business tasks from users’ specifications in natural language (NL). Therefore, this research aims to propose a framework to automatically implement the business processes that are expressed in NL requirements. -
Semantic Description of Web Services
Semantic Description of Web Services Thabet Slimani CS Department, Taif University, P.O.Box 888, 21974, KSA Abstract syntaxes) and in terms of the paradigms proposed for The tasks of semantic web service (discovery, selection, employing these in practice. composition, and execution) are supposed to enable seamless interoperation between systems, whereby human intervention is This paper is dedicated to provide an overview of these kept at a minimum. In the field of Web service description approaches, expressing their classification in terms of research, the exploitation of descriptions of services through commonalities and differences. It provides an semantics is a better support for the life-cycle of Web services. understanding of the technical foundation on which they The large number of developed ontologies, languages of are built. These techniques are classified from a range of representations, and integrated frameworks supporting the research areas including Top-down, Bottom-up and Restful discovery, composition and invocation of services is a good Approaches. indicator that research in the field of Semantic Web Services (SWS) has been considerably active. We provide in this paper a This paper does also provide some grounding that could detailed classification of the approaches and solutions, indicating help the reader perform a more detailed analysis of the their core characteristics and objectives required and provide different approaches which relies on the required indicators for the interested reader to follow up further insights objectives. We provide a little detailed comparison and details about these solutions and related software. between some approaches because this would require Keywords: SWS, SWS description, top-down approaches, addressing them from the perspective of some tasks bottom-up approaches, RESTful services. -
Semantic Web Services
The Semantic Web Semantic Web Services Sheila A. McIlraith, Tran Cao Son, and Honglei Zeng, Stanford University he Web, once solely a repository for text and images, is evolving into a provider Tof services—information-providing services, such as flight information providers, temperature sensors, and cameras, and world-altering services, such as flight-booking programs, sensor controllers, and a variety of e-commerce and business-to-business applications. Web-accessible programs, databases, damental component of the Semantic Web will be the sensors, and a variety of other physical devices real- markup of Web services to make them computer-inter- The authors propose the ize these services. In the next decade, computers will pretable, use-apparent, and agent-ready. This article most likely be ubiquitous, and most devices will have addresses precisely this component. markup of Web services some sort of computer inside them. Vint Cerf, one We present an approach to Web service markup that of the fathers of the Internet, views the population provides an agent-independent declarative API cap- in the DAML family of of the Internet by smart devices as the harbinger of turing the data and metadata associated with a service a new revolution in Internet technology. together with specifications of its properties and capa- Semantic Web markup Today’s Web was designed primarily for human bilities, the interface for its execution, and the prereq- interpretation and use. Nevertheless, we are seeing uisites and consequences of its use. Markup exploits languages. This markup increased automation of Web service interoperation, ontologies to facilitate sharing, reuse, composition, primarily in B2B and e-commerce applications. -
Semantic Web Services-A Survey
International Journal of Scientific & Engineering Research, Volume 4, Issue 6, June-2013 76 ISSN 2229-5518 Semantic Web Services-A Survey Gayathridevi.M and Manikandan.R Abstract-- The technology where the meaning of the information and the service of the web is defined by making the web to understand and satisfies the request of the people is called Semantic Web Services. That is the idea of having data on the web defined and linked in a way that it can be used by machines not just for display purpose, but for automation, integration and reuse of data across various application .The idea of the semantic is raised to overcome the limitation of the Web services such as Average WWW searches examines only about 25% of potentially relevant sites and return a lot of unwanted information, Information on web is not suitable for software agent and Doubling of size. It is built on top of the Web Services extended with rich semantic representations along with capabilities for automatic reasoning developed in the field of artificial intelligence. This survey attempts to give an overview of the underlying concepts and technologies along with the categorization, selection and discovery of services based on semantic. 1 INTRODUCTION Web Services are self-contained application that is used for the communication between electronic devices over internet. It uses XML- based interfaces for communication Service Publish which includes the operation like publish, bind, find of the Provider services by the service role. Bind The Semantic web used to categories the services and WSDL WSDL retrieves those services from UDDI based on meaning that enable dynamic, execution-time discovery, composition, and invocation of Services[1] and machine to use the web Service Service content. -
Reconciling OWL and Non-Monotonic Rules for the Semantic Web
Reconciling OWL and Non-monotonic Rules for the Semantic Web Matthias Knorr1 and Pascal Hitzler2 and Frederick Maier3 Abstract. We propose a description logic extending SROIQ In principle, the second rift cannot be completely overcome. Nev- (the description logic underlying OWL 2 DL) and at the same time ertheless, several decidable combinations of OWL and rules have encompassing some of the most prominent monotonic and non- been proposed in the literature, usually resulting in a hybrid formal- monotonic rule languages, in particular Datalog extended with the ism mixing the syntax and sometimes even the semantics of rules and answer set semantics. Our proposal could be considered a substan- description logics (see the survey sections of [18, 17]). The most re- tial contribution towards fulfilling the quest for a unifying logic for cent proposal [20] rests on the introduction of a new syntax construct the Semantic Web. As a case in point, two non-monotonic extensions to description logics, called nominal schemas, which results in a de- of description logics considered to be of distinct expressiveness until scription logic which seamlessly—syntactically and semantically— now are covered in our proposal. In contrast to earlier such propos- incorporates binary DL-safe Datalog [24] (and as we will see in Sec- als, our language has the “look and feel” of a description logic and tion 3.1, even incorporates unrestricted DL-safe Datalog). avoids hybrid or first-order syntaxes. While we would argue that the introduction of nominal schemas constitutes a major advance towards a reconciliation of OWL and rules, expanding OWL with nominal schemas by itself does nothing 1 Introduction to resolve the first of the rifts mentioned above. -
Representing Knowledge in the Semantic Web Oreste Signore W3C Office in Italy at CNR - Via G
Representing Knowledge in the Semantic Web Oreste Signore W3C Office in Italy at CNR - via G. Moruzzi, 1 -56124 Pisa - (Italy) Phone: +39 050 315 2995 (office) e.mail: [email protected] home page: http://www.weblab.isti.cnr.it/people/oreste/ Abstract – The Web is an immense repository of data and knowledge. Semantic web technologies support semantic interoperability and machine-to-machine interaction. A significant role is played by ontologies, which can support reasoning. Generally much emphasis is given to retrieval, while users tend to browse by association. If data are semantically annotated, an appropriate intelligent user agent aware of the mental model and interests of the user can support her/him in finding the desired information. The whole process must be supported by a core ontology. 1. Introduction W3C leads the evolution of the Web. Universal Access and Semantic Web show a significant impact upon interoperability, technological as well as semantic. In this paper we will discuss the role played by XML to support interoperability within applications, while RDF helps in cross applications interoperability. Subsequently, the paper considers the metadata issue, with a brief description of RDF and the Semantic Web stack. Finally, we discuss an example in the area of cultural heritage, which is very rich in variety of possible associations, presenting an architecture where intelligent agents make use of core ontology to help users in finding the appropriate information. 2. The World Wide Web Consortium (W3C) The Wide Web Consortium (W3C) was created in October 1994 to lead the World Wide Web to its full potential by developing common protocols that promote its evolution and ensure its interoperability. -
Gbrowse Moby: a Web-Based Browser for Biomoby Services Mark Wilkinson*
Source Code for Biology and Medicine BioMed Central Software review Open Access Gbrowse Moby: a Web-based browser for BioMoby Services Mark Wilkinson* Address: Assistant Professor, Department of Medical Genetics, University of British Columbia, James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul's Hospital, Rm. 166, 1081 Burrard St., Vancouver, BC, V6Z 1Y6, Canada Email: Mark Wilkinson* - [email protected] * Corresponding author Published: 24 October 2006 Received: 08 July 2006 Accepted: 24 October 2006 Source Code for Biology and Medicine 2006, 1:4 doi:10.1186/1751-0473-1-4 This article is available from: http://www.scfbm.org/content/1/1/4 © 2006 Wilkinson; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: The BioMoby project aims to identify and deploy standards and conventions that aid in the discovery, execution, and pipelining of distributed bioinformatics Web Services. As of August, 2006, approximately 680 bioinformatics resources were available through the BioMoby interoperability platform. There are a variety of clients that can interact with BioMoby-style services. Here we describe a Web-based browser-style client – Gbrowse Moby – that allows users to discover and "surf" from one bioinformatics service to the next using a semantically-aided browsing interface. Results: Gbrowse Moby is a low-throughput, exploratory tool specifically aimed at non- informaticians. It provides a straightforward, minimal interface that enables a researcher to query the BioMoby Central web service registry for data retrieval or analytical tools of interest, and then select and execute their chosen tool with a single mouse-click. -
The Resource Description Framework and Its Schema Fabien Gandon, Reto Krummenacher, Sung-Kook Han, Ioan Toma
The Resource Description Framework and its Schema Fabien Gandon, Reto Krummenacher, Sung-Kook Han, Ioan Toma To cite this version: Fabien Gandon, Reto Krummenacher, Sung-Kook Han, Ioan Toma. The Resource Description Frame- work and its Schema. Handbook of Semantic Web Technologies, 2011, 978-3-540-92912-3. hal- 01171045 HAL Id: hal-01171045 https://hal.inria.fr/hal-01171045 Submitted on 2 Jul 2015 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. The Resource Description Framework and its Schema Fabien L. Gandon, INRIA Sophia Antipolis Reto Krummenacher, STI Innsbruck Sung-Kook Han, STI Innsbruck Ioan Toma, STI Innsbruck 1. Abstract RDF is a framework to publish statements on the web about anything. It allows anyone to describe resources, in particular Web resources, such as the author, creation date, subject, and copyright of an image. Any information portal or data-based web site can be interested in using the graph model of RDF to open its silos of data about persons, documents, events, products, services, places etc. RDF reuses the web approach to identify resources (URI) and to allow one to explicitly represent any relationship between two resources. -
Biological Data Integration Using Semantic Web Technologies
Biological data integration using Semantic Web technologies Pasquier C Phone: +33 492 07 6947 Fax: +33 492 07 6432 Email: [email protected] Institute of Signaling, Developmental Biology & Cancer CNRS - UMR 6543, University of Nice Sophia-Antipolis Parc Valrose, 06108 NICE cedex 2, France. Summary Current research in biology heavily depends on the availability and efficient use of information. In order to build new knowledge, various sources of biological data must often be combined. Semantic Web technologies, which provide a common framework allowing data to be shared and reused between applications, can be applied to the management of disseminated biological data. However, due to some specificities of biological data, the application of these technologies to life science constitutes a real challenge. Through a use case of biological data integration, we show in this paper that current Semantic Web technologies start to become mature and can be applied for the development of large applications. However, in order to get the best from these technologies, improvements are needed both at the level of tool performance and knowledge modeling. Keywords Data integration, Semantic Web, OWL, RDF, SPARQL, Knowledge Base System (KBS) Introduction Biology is now an information-intensive science and research in genomics, transcriptomics and proteomics heavily depend on the availability and the efficient use of information. When data were structured and organized as a collection of records in dedicated, self-sufficient databases, information was retrieved by performing queries on the database using a specialized query language; for example SQL (Structured Query Language) for relational databases or OQL (Object Query Language) for object databases. -
Service Oriented Architectures and Semantic Web Processes
Wright State University CORE Scholar The Ohio Center of Excellence in Knowledge- Kno.e.sis Publications Enabled Computing (Kno.e.sis) 2004 Service Oriented Architectures and Semantic Web Processes Francisco Cubera Kunal Verma Amit P. Sheth Wright State University - Main Campus, [email protected] Follow this and additional works at: https://corescholar.libraries.wright.edu/knoesis Part of the Bioinformatics Commons, Communication Technology and New Media Commons, Databases and Information Systems Commons, OS and Networks Commons, and the Science and Technology Studies Commons Repository Citation Cubera, F., Verma, K., & Sheth, A. P. (2004). Service Oriented Architectures and Semantic Web Processes. https://corescholar.libraries.wright.edu/knoesis/62 This Tutorial is brought to you for free and open access by the The Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis) at CORE Scholar. It has been accepted for inclusion in Kno.e.sis Publications by an authorized administrator of CORE Scholar. For more information, please contact [email protected]. Service Oriented Architectures and Semantic Web Processes Jorge Cardoso1, Francisco Curbera2, Amit Sheth3 1University of Madeira (Portugal) 2IBM T.J. Watson Research Center (USA) 3 LSDIS Lab, University of Georgia and Semagix, Inc (USA) 2 Service Oriented Architectures and Web Services Semantic Web Processes 2 3 Semantic Web Processes Part 3 Service Oriented Architectures and Web Services 5 Overview z IT for a new business model z Service Oriented Architectures (SOAs). z Web services as an XML based instantiation of SOA. z Protocols. z Metadata. z Discovery. z Composition. z Summary. 5 6 A New Business Environment z Business outsource every non-essential function.