Query Processing Over Graph Structured Data On The Web

Author : M. Acosta Deibe
Publisher : IOS Press
Page : 244 pages
File Size : 42,9 Mb
Release : 2018-10-12
Category : Computers
ISBN : 9781614999164

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Query Processing over Graph-structured Data on the Web by M. Acosta Deibe Pdf

In the last years, Linked Data initiatives have encouraged the publication of large graph-structured datasets using the Resource Description Framework (RDF). Due to the constant growth of RDF data on the web, more flexible data management infrastructures must be able to efficiently and effectively exploit the vast amount of knowledge accessible on the web. This book presents flexible query processing strategies over RDF graphs on the web using the SPARQL query language. In this work, we show how query engines can change plans on-the-fly with adaptive techniques to cope with unpredictable conditions and to reduce execution time. Furthermore, this work investigates the application of crowdsourcing in query processing, where engines are able to contact humans to enhance the quality of query answers. The theoretical and empirical results presented in this book indicate that flexible techniques allow for querying RDF data sources efficiently and effectively.

Author : Maribel Acosta Deibe
Publisher : Unknown
Page : 128 pages
File Size : 43,5 Mb
Release : 2018
Category : Electronic
ISBN : 3898387380

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Query Processing Over Graph-structured Data on the Web by Maribel Acosta Deibe Pdf

Author : Günter Ladwig
Publisher : KIT Scientific Publishing
Page : 254 pages
File Size : 43,6 Mb
Release : 2014-05-13
Category : Computers
ISBN : 9783731500155

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Efficient Optimization and Processing of Queries Over Text-rich Graph-structured Data by Günter Ladwig Pdf

Many databases today capture both, structured and unstructured data. Making use of such hybrid data has become an important topic in research and industry. The efficient evaluation of hybrid data queries is the main topic of this thesis. Novel techniques are proposed that improve the whole processing pipeline, from indexes and query optimization to run-time processing. The contributions are evaluated in extensive experiments showing that the proposed techniques improve upon the state of the art.

Author : L. Heling
Publisher : IOS Press
Page : 326 pages
File Size : 47,8 Mb
Release : 2022-03-08
Category : Computers
ISBN : 9781643682617

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Decentralized Query Processing Over Heterogeneous Sources of Knowledge Graphs by L. Heling Pdf

Knowledge graphs are increasingly used in scientific and industrial applications. The large number and size of knowledge graphs published as Linked Data in autonomous sources has led to the development of various interfaces to query these knowledge graphs. Therefore, effective query processing approaches that enable efficient information retrieval from these knowledge graphs need to address the capabilities and limitations of different Linked Data Fragment interfaces. This book investigates novel approaches to addressing the challenges that arise in the presence of decentralized, heterogeneous sources of knowledge graphs. The effectiveness of these approaches is empirically evaluated and demonstrated using various real world and synthetic large-scale knowledge graphs throughout. First, a sample-based approach for generating fine-grained performance profiles is proposed, and it is demonstrated how the information from such profiles can be leveraged in cost model-based query planning. In addition, a sample-based data distribution profiling approach is advocated which aims to estimate the statistical profile features of large knowledge graphs and the applicability of these estimations in federated querying processing is demonstrated. The remainder of the book focuses on techniques to devise efficient query processing approaches when heterogeneous interfaces need to be queried but no fine-grained statistics are available. Robust techniques to support efficient query processing in these circumstances are investigated and results are shared to demonstrate the way in which these techniques can outperform state-of-the-art approaches. Finally, the author describes a framework for federated query processing over heterogeneous federations of Linked Data Fragments to exploit the capabilities of different sources by defining interface-aware approaches.

Author : Michael M. David,Lee Fesperman
Publisher : Artech House
Page : 408 pages
File Size : 53,9 Mb
Release : 2013
Category : Computers
ISBN : 9781608075331

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Advanced Standard SQL Dynamic Structured Data Modeling and Hierarchical Processing by Michael M. David,Lee Fesperman Pdf

"This revised and updated edition of Advanced ANSI SQL data modeling and structure processing ..."--Pref.

Author : Karl Aberer
Publisher : Springer Science & Business Media
Page : 998 pages
File Size : 42,9 Mb
Release : 2007-10-22
Category : Business & Economics
ISBN : 9783540762973

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The Semantic Web by Karl Aberer Pdf

This book constitutes the refereed proceedings of the joint 6th International Semantic Web Conference, ISWC 2007, and the 2nd Asian Semantic Web Conference, ASWC 2007, held in Busan, Korea, in November 2007. The 50 revised full academic papers and 12 revised application papers presented together with 5 Semantic Web Challenge papers and 12 selected doctoral consortium articles were carefully reviewed and selected from a total of 257 submitted papers to the academic track and 29 to the applications track. The papers address all current issues in the field of the semantic Web, ranging from theoretical and foundational aspects to various applied topics such as management of semantic Web data, ontologies, semantic Web architecture, social semantic Web, as well as applications of the semantic Web. Short descriptions of the top five winning applications submitted to the Semantic Web Challenge competition conclude the volume.

Author : Charu C. Aggarwal,Haixun Wang
Publisher : Springer Science & Business Media
Page : 623 pages
File Size : 43,8 Mb
Release : 2010-02-02
Category : Computers
ISBN : 9781441960450

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Managing and Mining Graph Data by Charu C. Aggarwal,Haixun Wang Pdf

Managing and Mining Graph Data is a comprehensive survey book in graph management and mining. It contains extensive surveys on a variety of important graph topics such as graph languages, indexing, clustering, data generation, pattern mining, classification, keyword search, pattern matching, and privacy. It also studies a number of domain-specific scenarios such as stream mining, web graphs, social networks, chemical and biological data. The chapters are written by well known researchers in the field, and provide a broad perspective of the area. This is the first comprehensive survey book in the emerging topic of graph data processing. Managing and Mining Graph Data is designed for a varied audience composed of professors, researchers and practitioners in industry. This volume is also suitable as a reference book for advanced-level database students in computer science and engineering.

Author : Karl Aberer,Key-Sun Choi,Natasha Noy,Dean Allemang,Kyung-Il Lee,Lyndon Nixon,Jennifer Golbeck,Peter Mika,Diana Maynard,Riichiro Mizoguchi,Guus Schreiber,Philippe Cudré-Mauroux
Publisher : Springer Science & Business Media
Page : 999 pages
File Size : 40,5 Mb
Release : 2007-10-27
Category : Computers
ISBN : 9783540762980

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The Semantic Web by Karl Aberer,Key-Sun Choi,Natasha Noy,Dean Allemang,Kyung-Il Lee,Lyndon Nixon,Jennifer Golbeck,Peter Mika,Diana Maynard,Riichiro Mizoguchi,Guus Schreiber,Philippe Cudré-Mauroux Pdf

This book constitutes the refereed proceedings of the joined 6th International Semantic Web Conference, ISWC 2007, and the 2nd Asian Semantic Web Conference, ASWC 2007. The papers address all current issues in the field of the semantic Web, ranging from theoretical and foundational aspects to various applied topics such as management of semantic Web data, ontologies, semantic Web architecture, social semantic Web, as well as applications of the semantic Web.

Author : Guozhu Dong,Xuemin Lin,Wei Wang,Yun Yang,Jeffrey Xu Yu
Publisher : Springer
Page : 898 pages
File Size : 52,7 Mb
Release : 2007-06-26
Category : Computers
ISBN : 9783540725244

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Advances in Data and Web Management by Guozhu Dong,Xuemin Lin,Wei Wang,Yun Yang,Jeffrey Xu Yu Pdf

This book constitutes the refereed proceedings of the joint 9th Asia-Pacific Web Conference, APWeb 2007, and the 8th International Conference on Web-Age Information Management, WAIM 2007, held in Huang Shan, China, June 2007. Coverage includes data mining and knowledge discovery, P2P systems, sensor networks, spatial and temporal databases, Web mining, XML and semi-structured data, privacy and security, as well as data mining and data streams.

Author : Angela Bonifati,George Fletcher,Hannes Voigt,Nikolay Yakovets
Publisher : Morgan & Claypool Publishers
Page : 186 pages
File Size : 40,9 Mb
Release : 2018-10-01
Category : Computers
ISBN : 9781681734316

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Querying Graphs by Angela Bonifati,George Fletcher,Hannes Voigt,Nikolay Yakovets Pdf

Graph data modeling and querying arises in many practical application domains such as social and biological networks where the primary focus is on concepts and their relationships and the rich patterns in these complex webs of interconnectivity. In this book, we present a concise unified view on the basic challenges which arise over the complete life cycle of formulating and processing queries on graph databases. To that purpose, we present all major concepts relevant to this life cycle, formulated in terms of a common and unifying ground: the property graph data model—the pre-dominant data model adopted by modern graph database systems. We aim especially to give a coherent and in-depth perspective on current graph querying and an outlook for future developments. Our presentation is self-contained, covering the relevant topics from: graph data models, graph query languages and graph query specification, graph constraints, and graph query processing. We conclude by indicating major open research challenges towards the next generation of graph data management systems.

Author : Jiaheng Lu
Publisher : Springer Science & Business Media
Page : 301 pages
File Size : 48,6 Mb
Release : 2013-03-15
Category : Computers
ISBN : 9783642345555

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An Introduction to XML Query Processing and Keyword Search by Jiaheng Lu Pdf

"An Introduction to XML Query Processing and Keyword Search" systematically and comprehensively covers the latest advances in XML data searching. It presents an extensive overview of the current query processing and keyword search techniques on XML data, including XML labeling schemes, indexing, processing on order and un-order XML tree patterns, XML query optimization, results estimation, and XML keyword searches, which are elaborated in separate chapters. Graduate students and researchers in the field of XML data searching will find this book an invaluable resource. Prof. Jiaheng Lu is an associate professor at Renmin University of China’s School of Information.

Author : Paul Groth,Elena Simperl,Alasdair Gray,Marta Sabou,Markus Krötzsch,Freddy Lecue,Fabian Flöck,Yolanda Gil
Publisher : Springer
Page : 672 pages
File Size : 49,7 Mb
Release : 2016-10-05
Category : Computers
ISBN : 9783319465234

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The Semantic Web – ISWC 2016 by Paul Groth,Elena Simperl,Alasdair Gray,Marta Sabou,Markus Krötzsch,Freddy Lecue,Fabian Flöck,Yolanda Gil Pdf

The two-volume set LNCS 9981 and 9982 constitutes the refereed proceedings of the 15th International Semantic Web Conference, ISWC 2016, which was held in Kobe, Japan, in October 2016. The 75 full papers presented in these proceedings were carefully reviewed and selected from 326 submissions. 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 Research Track solicited novel and significant research contributions addressing theoretical, analytical, empirical, and practical aspects of the Semantic Web. The Applications Track solicited submissions exploring the benefits and challenges of applying semantic technologies in concrete, practical applications, in contexts ranging from industry to government and science. The newly introduced Resources Track sought submissions providing a concise and clear description of a resource and its (expected) usage. Traditional resources include ontologies, vocabularies, datasets, benchmarks and replication studies, services and software. Besides more established types of resources, the track solicited submissions of new types of resources such as ontology design patterns, crowdsourcing task designs, workflows, methodologies, and protocols and measures.

Author : Yan, Li
Publisher : IGI Global
Page : 626 pages
File Size : 54,5 Mb
Release : 2015-09-25
Category : Computers
ISBN : 9781466687684

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Handbook of Research on Innovative Database Query Processing Techniques by Yan, Li Pdf

Research and development surrounding the use of data queries is receiving increased attention from computer scientists and data specialists alike. Through the use of query technology, large volumes of data in databases can be retrieved, and information systems built based on databases can support problem solving and decision making across industries. The Handbook of Research on Innovative Database Query Processing Techniques focuses on the growing topic of database query processing methods, technologies, and applications. Aimed at providing an all-inclusive reference source of technologies and practices in advanced database query systems, this book investigates various techniques, including database and XML queries, spatiotemporal data queries, big data queries, metadata queries, and applications of database query systems. This comprehensive handbook is a necessary resource for students, IT professionals, data analysts, and academicians interested in uncovering the latest methods for using queries as a means to extract information from databases. This all-inclusive handbook includes the latest research on topics pertaining to information retrieval, data extraction, data management, design and development of database queries, and database and XM queries.

Author : Axel Polleres,Claudia d'Amato,Marcelo Arenas,Siegfried Handschuh,Paula Kroner,Sascha Ossowski,Peter F. Patel-Schneider
Publisher : Springer Science & Business Media
Page : 544 pages
File Size : 54,9 Mb
Release : 2011-08-09
Category : Computers
ISBN : 9783642230318

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Reasoning Web. Semantic Technologies for the Web of Data by Axel Polleres,Claudia d'Amato,Marcelo Arenas,Siegfried Handschuh,Paula Kroner,Sascha Ossowski,Peter F. Patel-Schneider Pdf

The Semantic Web aims at enriching the existing Web with meta-data and processing methods so as to provide web-based systems with advanced capabilities, in particular with context awareness and decision support. The objective of this book is to provide a coherent introduction to semantic web methods and research issues with a particular emphasis on reasoning. The 7th reasoning web Summer School, held in August 2011, focused on the central topic of applications of reasoning for the emerging “Web of Data”. The 12 chapters in the present book provide excellent educational material as well as a number of references for further reading. The book not only addresses students working in the area, but also those seeking an entry point to various topics related to reasoning over Web data.

Author : P. Ristoski
Publisher : IOS Press
Page : 246 pages
File Size : 46,7 Mb
Release : 2019-06-28
Category : Computers
ISBN : 9781614999812

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Exploiting Semantic Web Knowledge Graphs in Data Mining by P. Ristoski Pdf

Data Mining and Knowledge Discovery in Databases (KDD) is a research field concerned with deriving higher-level insights from data. The tasks performed in this field are knowledge intensive and can benefit from additional knowledge from various sources, so many approaches have been proposed that combine Semantic Web data with the data mining and knowledge discovery process. This book, Exploiting Semantic Web Knowledge Graphs in Data Mining, aims to show that Semantic Web knowledge graphs are useful for generating valuable data mining features that can be used in various data mining tasks. In Part I, Mining Semantic Web Knowledge Graphs, the author evaluates unsupervised feature generation strategies from types and relations in knowledge graphs used in different data mining tasks such as classification, regression, and outlier detection. Part II, Semantic Web Knowledge Graphs Embeddings, proposes an approach that circumvents the shortcomings introduced with the approaches in Part I, developing an approach that is able to embed complete Semantic Web knowledge graphs in a low dimensional feature space where each entity and relation in the knowledge graph is represented as a numerical vector. Finally, Part III, Applications of Semantic Web Knowledge Graphs, describes a list of applications that exploit Semantic Web knowledge graphs like classification and regression, showing that the approaches developed in Part I and Part II can be used in applications in various domains. The book will be of interest to all those working in the field of data mining and KDD.