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Automatic linking, extraction, mapping, and visualization of RDF data became mainstream technology provided by mature open-source software components.Standards such as the R2RML RDB2RDF mapping language were defined and a vast number of small and large Linked Data resources (including DBpedia, Linked Geo Data, or the 10.000 publicdata.
This book is distributed under the terms of the Creative Commons Attribution Noncom- mercial License, which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on micro films or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed.Linked Open Data (LOD) is a pragmatic approach for realizing the Semantic Web vision of making the Web a global, distributed, semantics-based information system.The aim of the LOD2 project was to advance the state of the art in research and development in four key areas relevant for Linked Data, namely 1. the extraction, creation, and enrichment of structured RDF data; 3.July 2014 Soren Auer Volha Bryl Sebastian Tramp Contents 1 Introduction to LOD2 1 Soren Auer Technology 2 Advances in Large-Scale RDF Data Management 21 Peter Boncz, Orri Erling, and Minh-Duc Pham 3 Knowledge Base Creation, Enrichment and Repair 45 Sebastian Hellmann, Volha Bryl, Lorenz Buhmann, Milan Dojchinovski, Dimitris Kontokostas, Jens Lehmann, Ur os Milosevic, Petar Petrov ski, Vojtech Svatek, Mladen Stanojevic, and Ondrej Zamazal 4 Interlinking and Knowledge Fusion 70 Volha Bryl, Christian Bizer, Robert Isele, Mateja Verlic, Soon Gill Hong, Sammy Jang, Mun Yong Yi, and Key-Sun Choi 5 Facilitating the Exploration and Visualization of Linked Data 90 Christian Mader, Michael Martin, and Claus Stadler 6 Supporting the Linked Data Life Cycle Using an Integrated Tool Stack ... In this introductory chapter we give a brief overview on the Linked Data concept, the Linked Data lifecycle as well as the LOD2 Stack - an integrated distribution of aligned tools which support the whole life cycle of Linked Data from extraction, authoring/creation via enrichment, interlinking, fusing to maintenance.108 Bert Van Nuffelen, Valentina Janev, Michael Martin, Vuk Mijovic, and Sebastian Tramp Use Cases 7 LOD2 for Media and Publishing 133 Christian Dirschl, Tassilo Pellegrini, Helmut Nagy, Katja Eck, Bert Van Nujfelen, and Ivan Ermilov 8 Building Enterprise Ready Applications Using Linked Open Data 155 Amar-Djalil Mezaour, Bert Van Nuffelen, and Christian Blaschke 9 Lifting Open Data Portals to the Data Web 175 Sander van der Waal, Krzysztof Wgcel, Ivan Ermilov, Valentina Janev, Urns Milosevic, and Mark Wainwright 10 Linked Open Data for Public Procurement 196 Vojtech Svatek, Jindrich Mynarz, Krzysztof Wgcel, Jakub KUmek, Tomas Knap, and Martin Necasky Author Index 215 Introduction to LOD2 Soren Auer-^ University of Bonn, Bonn, Germany [email protected] ormatik . The stack is designed to be versatile; for all functionality we define clear interfaces, which enable the plugging in of alternative third-party implementations.Pandu Rangan Indian Institute of Technology, Madras, India Bernhard Steffen TU Dortmund University, Dortmund, Germany Demetri Terzopoulos University of California, Los Angeles, CA, USA Doug Tygar University of California, Berkeley, CA, USA Gerhard Weikum Max Planck Institute for Informatics, Saarbruecken, Germany 8661 More information about this series at Soren Auer • Volha Bryl Sebastian Tramp (Eds.) Linked Open Data - Creating Knowledge Out of Interlinked Data Results of the LOD2 Project 4^ Springer Sebastian Tramp University of Leipzig Leipzig Germany Volha Bryl University of Mannheim Mannheim Germany Editors Soren Auer Institut fiir Informatik III Rheinische Friedrich-Wilhelms-Universitat Bonn Germany ISSN 0302-9743 ISSN 1611-3349 (electronic) ISBN 978-3-319-09845-6 ISBN 978-3-319-09846-3 (e Book) DOI 10.1007/978-3-319-09846-3 Library of Congress Control Number: 2014945220 LNCS Sublibrary: SL3 - Information Systems and Applications, incl.
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Furthermore, a large number of stakeholders engaged with the LOD2 VI Preface project, for example, through the LOD2 PUB LINK initiatives, the regular LOD2 technology webinars, or the various events organized by the project.
We are grateful for their support and feedback, without which the project as well as this book would not have been possible.
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