research-article

NautiLOD: A Formal Language for the Web of Data Graph

Authors:

Valeria Fionda,

Giuseppe Pirrò,

Claudio GutierrezAuthors Info & Claims

ACM Transactions on the Web (TWEB), Volume 9, Issue 1

Article No.: 5, Pages 1 - 43

https://doi.org/10.1145/2697393

Published: 23 January 2015 Publication History

Abstract

The Web of Linked Data is a huge graph of distributed and interlinked datasources fueled by structured information. This new environment calls for formal languages and tools to automatize navigation across datasources (nodes in such graph) and enable semantic-aware and Web-scale search mechanisms. In this article we introduce a declarative navigational language for the Web of Linked Data graph called NautiLOD. NautiLOD enables one to specify datasources via the intertwining of navigation and querying capabilities. It also features a mechanism to specify actions (e.g., send notification messages) that obtain their parameters from datasources reached during the navigation. We provide a formalization of the NautiLOD semantics, which captures both nodes and fragments of the Web of Linked Data. We present algorithms to implement such semantics and study their computational complexity. We discuss an implementation of the features of NautiLOD in a tool called swget, which exploits current Web technologies and protocols. We report on the evaluation of swget and its comparison with related work. Finally, we show the usefulness of capturing Web fragments by providing examples in different knowledge domains.

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Cited By

Bergami GFox OMorgan G(2024)Matching and Rewriting Rules in Object-Oriented DatabasesMathematics10.3390/math1217267712:17(2677)Online publication date: 28-Aug-2024
https://doi.org/10.3390/math12172677
Bergami GZegadło W(2023)Towards a Generalised Semistructured Data Model and Query LanguageACM SIGWEB Newsletter10.1145/3609429.36094332023:Summer(1-22)Online publication date: 1-Aug-2023
https://dl.acm.org/doi/10.1145/3609429.3609433
Biswas ABiswas B(2023)CESDAM: Centered subgraph data matrix for large graph representationPrinciples of Big Graph: In-depth Insight10.1016/bs.adcom.2021.09.005(1-38)Online publication date: 2023
https://doi.org/10.1016/bs.adcom.2021.09.005
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Index Terms

NautiLOD: A Formal Language for the Web of Data Graph
1. Information systems
  1. Data management systems
    1. Database management system engines
    2. Query languages
2. Theory of computation
  1. Theory and algorithms for application domains
    1. Database theory
      1. Database query languages (principles)

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Published In

cover image ACM Transactions on the Web

ACM Transactions on the Web Volume 9, Issue 1

January 2015

178 pages

ISSN:1559-1131

EISSN:1559-114X

DOI:10.1145/2726021

Editor:
Marc Najork
Google, USA

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Copyright © 2015 ACM.

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Association for Computing Machinery

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Publication History

Published: 23 January 2015

Accepted: 01 October 2014

Revised: 01 August 2014

Received: 01 April 2014

Published in TWEB Volume 9, Issue 1

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Funding Sources

Calabria region
European Commission
European Social Fund
Millenium Nucleus CIWS, NC120004
projects FONDECYT No. 1110287
EU Framework Programme for Research and Innovation

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Cited By

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https://doi.org/10.3390/math12172677
Bergami GZegadło W(2023)Towards a Generalised Semistructured Data Model and Query LanguageACM SIGWEB Newsletter10.1145/3609429.36094332023:Summer(1-22)Online publication date: 1-Aug-2023
https://dl.acm.org/doi/10.1145/3609429.3609433
Biswas ABiswas B(2023)CESDAM: Centered subgraph data matrix for large graph representationPrinciples of Big Graph: In-depth Insight10.1016/bs.adcom.2021.09.005(1-38)Online publication date: 2023
https://doi.org/10.1016/bs.adcom.2021.09.005
Taelman RVerborgh R(2023)Link Traversal Query Processing Over Decentralized Environments with Structural AssumptionsThe Semantic Web – ISWC 202310.1007/978-3-031-47240-4_1(3-22)Online publication date: 6-Nov-2023
https://dl.acm.org/doi/10.1007/978-3-031-47240-4_1
Hartig OHose KSequeda J(2022)Linked Data ManagementEncyclopedia of Big Data Technologies10.1007/978-3-319-63962-8_76-3(1-8)Online publication date: 26-Nov-2022
https://doi.org/10.1007/978-3-319-63962-8_76-3
Reutter JSoto AVrgoč D(2021)Recursion in SPARQLSemantic Web10.3233/SW-20040112:5(711-740)Online publication date: 1-Jan-2021
https://dl.acm.org/doi/10.3233/SW-200401
Fionda VPirrò GConsens MKejriwal MLopez VSequeda J(2019)Querying knowledge graphs with extended property pathsSemantic Web10.3233/SW-19036510:6(1127-1168)Online publication date: 1-Jan-2019
https://dl.acm.org/doi/10.3233/SW-190365
Klímek JŠkoda PNečaský M(2019)Survey of tools for Linked Data consumptionSemantic Web10.3233/SW-18031610:4(665-720)Online publication date: 23-May-2019
https://doi.org/10.3233/SW-180316
Mountantonakis MTzitzikas Y(2019)Large-scale Semantic Integration of Linked DataACM Computing Surveys10.1145/334555152:5(1-40)Online publication date: 13-Sep-2019
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Fafalios PTzitzikas YHung CPapadopoulos G(2019)How many and what types of SPARQL queries can be answered through zero-knowledge link traversal?Proceedings of the 34th ACM/SIGAPP Symposium on Applied Computing10.1145/3297280.3297505(2267-2274)Online publication date: 8-Apr-2019
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