Federated Query Processing For The Semantic Web

Author : C. Buil-Aranda
Publisher : IOS Press
Page : 200 pages
File Size : 40,5 Mb
Release : 2014-01-22
Category : Computers
ISBN : 9781614993506

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Federated Query Processing for the Semantic Web by C. Buil-Aranda Pdf

During the last years, the amount of RDF data has increased exponentially over the Web, exposed via SPARQL endpoints. These SPARQL endpoints allow users to direct SPARQL queries to the RDF data. Federated SPARQL query processing allows to query several of these RDF databases as if they were a single one, integrating the results from all of them. This is a key concept in the Web of Data and it is also a hot topic in the community. Besides of that, the W3C SPARQL-WG has standardized it in the new Recommendation SPARQL 1.1._x000D_ This book provides a formalisation of the W3C proposed recommendation. This formalisation allows to identify existing errors and allows to correct them before the implementation phase or when the execution of these federated queries start. The book constitutes a valuable resource for any implementer since it also proposes solutions to the problems identified as well as proposing a set of SPARQL pattern reordering rules, which reduce the execution time of federated queries significantly._x000D_ Another strong point of this book is the research methodology followed. It states clearly the problems in the state of the art, next defines the research hypothesis for next providing a thoroughly analysis of the semantics of the SPARQL 1.1 specification. Once the theoretical part is concluded the book steps into the implementation part, describing clearly the implementation decisions for finally evaluating the overall system.

Author : Carlos Buil-Aranda
Publisher : Unknown
Page : 185 pages
File Size : 54,7 Mb
Release : 2014
Category : Federated serching
ISBN : 3898386899

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Federated Query Processing for the Semantic Web by Carlos Buil-Aranda Pdf

Author : Valentina Janev,Damien Graux,Hajira Jabeen,Emanuel Sallinger
Publisher : Springer Nature
Page : 212 pages
File Size : 43,5 Mb
Release : 2020-07-15
Category : Computers
ISBN : 9783030531997

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Knowledge Graphs and Big Data Processing by Valentina Janev,Damien Graux,Hajira Jabeen,Emanuel Sallinger Pdf

This open access book is part of the LAMBDA Project (Learning, Applying, Multiplying Big Data Analytics), funded by the European Union, GA No. 809965. Data Analytics involves applying algorithmic processes to derive insights. Nowadays it is used in many industries to allow organizations and companies to make better decisions as well as to verify or disprove existing theories or models. The term data analytics is often used interchangeably with intelligence, statistics, reasoning, data mining, knowledge discovery, and others. The goal of this book is to introduce some of the definitions, methods, tools, frameworks, and solutions for big data processing, starting from the process of information extraction and knowledge representation, via knowledge processing and analytics to visualization, sense-making, and practical applications. Each chapter in this book addresses some pertinent aspect of the data processing chain, with a specific focus on understanding Enterprise Knowledge Graphs, Semantic Big Data Architectures, and Smart Data Analytics solutions. This book is addressed to graduate students from technical disciplines, to professional audiences following continuous education short courses, and to researchers from diverse areas following self-study courses. Basic skills in computer science, mathematics, and statistics are required.

Author : D.T. Tran
Publisher : IOS Press
Page : 243 pages
File Size : 45,8 Mb
Release : 2011-02-22
Category : Computers
ISBN : 9781614993445

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Process-oriented Semantic Web Search by D.T. Tran Pdf

The book is composed of two main parts. The first part is a general study of Semantic Web Search. The second part specifically focuses on the use of semantics throughout the search process, compiling a big picture of Process-oriented Semantic Web Search from different pieces of work that target specific aspects of the process. In particular, this book provides a rigorous account of the concepts and technologies proposed for searching resources and semantic data on the Semantic Web. To collate the various approaches and to better understand what the notion of Semantic Web Search entails, this book presents a general Semantic Web Search model. With respect to this model, the book provides a comprehensive discussion of the state-of-the-art. It elaborates on approaches for crawling, managing and searching Semantic Web resources as well as the various schemes proposed for ranking search results. Besides these specific approaches, search is also studied in a general multi-data-source scenario. This shall demonstrate how this work on search is extended and applied to the Web setting. A major feature of the book is that it considers search and the use of semantics for search also from a process point of view. Extending the general model, the book introduces the notion of Process-oriented Semantic Web Search, where semantics is exploited throughout the entire search process – from query construction to query processing up to result presentation and query refinement. Specific pieces of work targeting these individual steps of the process are combined to form a coherent and consistent picture of Process-oriented Semantic Web Search. In order to convey this general notion as well as the specific concepts and technologies developed for supporting the search process, this book presents a compilation of work called SemSearchPro and provides detailed descriptions on the underlying approaches.

Author : Sven Groppe
Publisher : Springer Science & Business Media
Page : 270 pages
File Size : 51,9 Mb
Release : 2011-04-29
Category : Computers
ISBN : 9783642193576

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Data Management and Query Processing in Semantic Web Databases by Sven Groppe Pdf

The Semantic Web, which is intended to establish a machine-understandable Web, is currently changing from being an emerging trend to a technology used in complex real-world applications. A number of standards and techniques have been developed by the World Wide Web Consortium (W3C), e.g., the Resource Description Framework (RDF), which provides a general method for conceptual descriptions for Web resources, and SPARQL, an RDF querying language. Recent examples of large RDF data with billions of facts include the UniProt comprehensive catalog of protein sequence, function and annotation data, the RDF data extracted from Wikipedia, and Princeton University’s WordNet. Clearly, querying performance has become a key issue for Semantic Web applications. In his book, Groppe details various aspects of high-performance Semantic Web data management and query processing. His presentation fills the gap between Semantic Web and database books, which either fail to take into account the performance issues of large-scale data management or fail to exploit the special properties of Semantic Web data models and queries. After a general introduction to the relevant Semantic Web standards, he presents specialized indexing and sorting algorithms, adapted approaches for logical and physical query optimization, optimization possibilities when using the parallel database technologies of today’s multicore processors, and visual and embedded query languages. Groppe primarily targets researchers, students, and developers of large-scale Semantic Web applications. On the complementary book webpage readers will find additional material, such as an online demonstration of a query engine, and exercises, and their solutions, that challenge their comprehension of the topics presented.

Author : Lora Aroyo,Chris Welty,Harith Alani,Jamie Taylor,Abraham Bernstein,Lalana Kagal,Natasha Noy,Eva Blomqvist
Publisher : Springer Science & Business Media
Page : 836 pages
File Size : 47,5 Mb
Release : 2011-10-26
Category : Computers
ISBN : 9783642250729

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The Semantic Web -- ISWC 2011 by Lora Aroyo,Chris Welty,Harith Alani,Jamie Taylor,Abraham Bernstein,Lalana Kagal,Natasha Noy,Eva Blomqvist Pdf

The two-volume set LNCS 7031 and LNCS 7032 constitutes the proceedings of the 10th International Semantic Web Conference, ISWC 2011, held in Bonn, Germany, in October 2011. Part I, LNCS 7031, contains 50 research papers which were carefully reviewed and selected from 264 submissions. The 17 semantic Web in-use track papers contained in part II, LNCS 7032, were selected from 75 submissions. This volume also contains 15 doctoral consortium papers, selected from 31 submissions. The topics covered are: ontologies and semantics; database, IR, and AI technologies for the semantic Web; management of semantic Web data; reasoning over semantic Web data; search, query, integration, and analysis on the semantic Web; robust and scalable knowledge management and reasoning on the Web; interacting with semantic Web data; ontology modularity, mapping, merging and alignment; languages, tools, and methodologies for representing and managing semantic Web data; ontology, methodology, evaluation, reuse, extraction and evolution; evaluation of semantic Web technologies or data; specific ontologies and ontology pattern for the semantic Web; new formalisms for semantic Web; user interfaces to the semantic Web; cleaning, assurance, and provenance of semantic Web data; services, and processes; social semantic Web, evaluation of semantic Web technology; semantic Web population from the human Web.

Author : Harith Alani,Lalana Kagal,Achille Fokoue,Paul Groth,Chris Biemann,Josiane Xavier Parreira,Lora Aroyo,Natasha Noy,Chris Welty,Krzysztof Janowicz
Publisher : Springer
Page : 740 pages
File Size : 42,9 Mb
Release : 2013-10-16
Category : Computers
ISBN : 9783642413353

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The Semantic Web - ISWC 2013 by Harith Alani,Lalana Kagal,Achille Fokoue,Paul Groth,Chris Biemann,Josiane Xavier Parreira,Lora Aroyo,Natasha Noy,Chris Welty,Krzysztof Janowicz Pdf

The two-volume set LNCS 8218 and 8219 constitutes the refereed proceedings of the 12th International Semantic Web Conference, ISWC 2013, held in Sydney, Australia, in October 2013. The International Semantic Web Conference is the premier forum for Semantic Web research, where cutting edge scientific results and technological innovations are presented, where problems and solutions are discussed, and where the future of this vision is being developed. It brings together specialists in fields such as artificial intelligence, databases, social networks, distributed computing, Web engineering, information systems, human-computer interaction, natural language processing, and the social sciences. Part 1 (LNCS 8218) contains a total of 45 papers which were presented in the research track. They were carefully reviewed and selected from 210 submissions. Part 2 (LNCS 8219) contains 16 papers from the in-use track which were accepted from 90 submissions. In addition, it presents 10 contributions to the evaluations and experiments track and 5 papers of the doctoral consortium.

Author : Pascal Hitzler,Sabrina Kirrane,Olaf Hartig,Victor de Boer,Maria-Esther Vidal,Maria Maleshkova,Stefan Schlobach,Karl Hammar,Nelia Lasierra,Steffen Stadtmüller,Katja Hose,Ruben Verborgh
Publisher : Springer Nature
Page : 302 pages
File Size : 55,8 Mb
Release : 2019-10-10
Category : Computers
ISBN : 9783030323271

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The Semantic Web: ESWC 2019 Satellite Events by Pascal Hitzler,Sabrina Kirrane,Olaf Hartig,Victor de Boer,Maria-Esther Vidal,Maria Maleshkova,Stefan Schlobach,Karl Hammar,Nelia Lasierra,Steffen Stadtmüller,Katja Hose,Ruben Verborgh Pdf

This book constitutes the thoroughly refereed post-conference proceedings of the Satellite Events of the 16th Extended Semantic Web Conference, ESWC 2019, held in Portorož, Slovenia, in June 2019. The volume contains 38 poster and demonstration papers, 2 workshop papers,5 PhD symposium papers, and 3 industry track papers, selected out of a total of 68 submissions. They deal with all areas of semantic web research, semantic technologies on the Web and Linked Data.

Author : John Domingue,Dieter Fensel,James A. Hendler
Publisher : Springer Science & Business Media
Page : 1077 pages
File Size : 54,7 Mb
Release : 2011-06-19
Category : Computers
ISBN : 9783540929123

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Handbook of Semantic Web Technologies by John Domingue,Dieter Fensel,James A. Hendler Pdf

After years of mostly theoretical research, Semantic Web Technologies are now reaching out into application areas like bioinformatics, eCommerce, eGovernment, or Social Webs. Applications like genomic ontologies, semantic web services, automated catalogue alignment, ontology matching, or blogs and social networks are constantly increasing, often driven or at least backed up by companies like Google, Amazon, YouTube, Facebook, LinkedIn and others. The need to leverage the potential of combining information in a meaningful way in order to be able to benefit from the Web will create further demand for and interest in Semantic Web research. This movement, based on the growing maturity of related research results, necessitates a reliable reference source from which beginners to the field can draw a first basic knowledge of the main underlying technologies as well as state-of-the-art application areas. This handbook, put together by three leading authorities in the field, and supported by an advisory board of highly reputed researchers, fulfils exactly this need. It is the first dedicated reference work in this field, collecting contributions about both the technical foundations of the Semantic Web as well as their main usage in other scientific fields like life sciences, engineering, business, or education.

Author : Olivier Curé,Guillaume Blin
Publisher : Morgan Kaufmann
Page : 256 pages
File Size : 55,5 Mb
Release : 2014-11-24
Category : Computers
ISBN : 9780128004708

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RDF Database Systems by Olivier Curé,Guillaume Blin Pdf

RDF Database Systems is a cutting-edge guide that distills everything you need to know to effectively use or design an RDF database. This book starts with the basics of linked open data and covers the most recent research, practice, and technologies to help you leverage semantic technology. With an approach that combines technical detail with theoretical background, this book shows how to design and develop semantic web applications, data models, indexing and query processing solutions. Understand the Semantic Web, RDF, RDFS, SPARQL, and OWL within the context of relational database management and NoSQL systems Learn about the prevailing RDF triples solutions for both relational and non-relational databases, including column family, document, graph, and NoSQL Implement systems using RDF data with helpful guidelines and various storage solutions for RDF Process SPARQL queries with detailed explanations of query optimization, query plans, caching, and more Evaluate which approaches and systems to use when developing Semantic Web applications with a helpful description of commercial and open-source systems

Author : Grigoris Antoniou,Marko Grobelnik,Elena Simperl,Bijan Parsia,Dimitris Plexousakis,Pieter De Leenheer,Jeff Z. Pan
Publisher : Springer
Page : 520 pages
File Size : 49,5 Mb
Release : 2011-06-11
Category : Computers
ISBN : 9783642210648

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The Semantic Web: Research and Applications by Grigoris Antoniou,Marko Grobelnik,Elena Simperl,Bijan Parsia,Dimitris Plexousakis,Pieter De Leenheer,Jeff Z. Pan Pdf

The books (LNCS 6643 and 6644) constitute the refereed proceedings of the 8th European Semantic Web Conference, ESWC 2011, held in Heraklion, Crete, Greece, in May/June 2011. The 57 revised full papers of the research track presented together with 7 PhD symposium papers and 14 demo papers were carefully reviewed and selected from 291 submissions. The papers are organized in topical sections on digital libraries track; inductive and probabilistic approaches track; linked open data track; mobile web track; natural language processing track; ontologies track; and reasoning track (part I); semantic data management track; semantic web in use track; sensor web track; software, services, processes and cloud computing track; social web and web science track; demo track, PhD symposium (part II).

Author : Claudia d'Amato,Miriam Fernandez,Valentina Tamma,Freddy Lecue,Philippe Cudré-Mauroux,Juan Sequeda,Christoph Lange,Jeff Heflin
Publisher : Springer
Page : 764 pages
File Size : 53,5 Mb
Release : 2017-10-11
Category : Computers
ISBN : 9783319682884

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The Semantic Web – ISWC 2017 by Claudia d'Amato,Miriam Fernandez,Valentina Tamma,Freddy Lecue,Philippe Cudré-Mauroux,Juan Sequeda,Christoph Lange,Jeff Heflin Pdf

The two-volume set LNCS 10587 + 10588 constitutes the refereed proceedings of the 16th International Semantic Web Conference, ISWC 2017, held in Vienna, Austria, in October 2017. ISWC 2017 is the premier international forum, for the Semantic Web / Linked Data Community. The total of 55 full and 21 short papers presented in this volume were carefully reviewed and selected from 300 submissions. They are organized according to the tracks that were held: Research Track; Resource Track; and In-Use Track.

Author : Aldo Gangemi,Roberto Navigli,Maria-Esther Vidal,Pascal Hitzler,Raphaël Troncy,Laura Hollink,Anna Tordai,Mehwish Alam
Publisher : Springer
Page : 763 pages
File Size : 41,8 Mb
Release : 2018-06-02
Category : Computers
ISBN : 9783319934174

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The Semantic Web by Aldo Gangemi,Roberto Navigli,Maria-Esther Vidal,Pascal Hitzler,Raphaël Troncy,Laura Hollink,Anna Tordai,Mehwish Alam Pdf

This book constitutes the refereed proceedings of the 15th International Semantic Web Conference, ESWC 2018, held in Heraklion, Crete, Greece. The 48 revised full papers presented were carefully reviewed and selected from 179 submissions. The papers cover a large range of topics such as logical modelling and reasoning, natural language processing, databases and data storage and access, machine learning, distributed systems, information retrieval and data mining, social networks, and Web science and Web engineering.

Author : Valentina Presutti,Claudia d'Amato,Fabien Gandon,Mathieu d'Acquin,Steffen Staab,Anna Tordai
Publisher : Springer
Page : 926 pages
File Size : 48,9 Mb
Release : 2014-05-09
Category : Computers
ISBN : 9783319074436

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The Semantic Web: Trends and Challenges by Valentina Presutti,Claudia d'Amato,Fabien Gandon,Mathieu d'Acquin,Steffen Staab,Anna Tordai Pdf

This book constitutes the refereed proceedings of the 11th Extended Semantic Web Conference, ESWC 2014, held in Anissaras, Crete, Greece France, in May 2014. The 50 revised full papers presented together with three invited talks were carefully reviewed and selected from 204 submissions. They are organized in topical sections on mobile, sensor and semantic streams; services, processes and cloud computing; social web and web science; data management; natural language processing; reasoning; machine learning, linked open data; cognition and semantic web; vocabularies, schemas, ontologies. The book also includes 11 papers presented at the PhD Symposium.

Author : Marcelo Arenas,Oscar Corcho,Elena Simperl,Markus Strohmaier,Mathieu d'Aquin,Kavitha Srinivas,Paul Groth,Michel Dumontier,Jeff Heflin,Krishnaprasad Thirunarayan,Steffen Staab
Publisher : Springer
Page : 675 pages
File Size : 47,7 Mb
Release : 2015-10-13
Category : Computers
ISBN : 9783319250076

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The Semantic Web - ISWC 2015 by Marcelo Arenas,Oscar Corcho,Elena Simperl,Markus Strohmaier,Mathieu d'Aquin,Kavitha Srinivas,Paul Groth,Michel Dumontier,Jeff Heflin,Krishnaprasad Thirunarayan,Steffen Staab Pdf

The two-volume set LNCS 9366 and 9367 constitutes the refereed proceedings of the 14th International Semantic Web Conference, ISWC 2015, held in Bethlehem, PA, USA, in October 2015. The International Semantic Web Conference is the premier forum for Semantic Web research, where cutting edge scientific results and technological innovations are presented, where problems and solutions are discussed, and where the future of this vision is being developed. It brings together specialists in fields such as artificial intelligence, databases, social networks, distributed computing, Web engineering, information systems, human-computer interaction, natural language processing, and the social sciences. The papers cover topics such as querying with SPARQL; querying linked data; linked data; ontology-based data access; ontology alignment; reasoning; instance matching, entity resolution and topic generation; RDF data dynamics; ontology extraction and generation; knowledge graphs and scientific data publication; ontology instance alignment; knowledge graphs; data processing, IoT, sensors; archiving and publishing scientific data; I oT and sensors; experiments; evaluation; and empirical studies. Part 1 (LNCS 9366) contains a total of 38 papers which were presented in the research track. They were carefully reviewed and selected from 172 submissions. Part 2 (LNCS 9367) contains 14 papers from the in-use and software track, 8 papers from the datasets and ontologies track, and 7 papers from the empirical studies and experiments track, selected, respectively, from 33, 35, and 23 submissions.