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Linked Open Data Resources

1. LOD Standards and Tools

  • RDF (Resource Description Framework): The foundational standard for representing linked data on the web. RDF allows for linking disparate data in a meaningful way.
  • SPARQL: A query language used for querying linked data repositories, allowing you to extract and manipulate data from RDF datasets.
  • OWL (Web Ontology Language): A language used for creating ontologies that structure the relationships between different pieces of data.

2. Key Platforms and Ecosystems

  • Wikidata: A free and open knowledge base that serves as a central repository for structured data, supporting the linked open data ecosystem.
  • Artsdata Ecosystem: A platform for structuring and linking performing arts data in Canada, enhancing discoverability across various sources.
  • Open Knowledge Foundation's CKAN: A powerful open-source data management system useful for LOD projects.

3. Repositories and Knowledge Graphs

  • DBpedia: Extracts structured content from Wikipedia and makes it available as linked data.
  • Europeana: A platform aggregating linked open data for cultural heritage.
  • LOD Cloud: An extensive collection of interlinked datasets across various domains such as government, life sciences, and publications.

4. LOD in Specific Domains

Cultural Heritage

  • Europeana: Provides access to millions of digitized items from European museums, libraries, archives, and galleries.
  • Getty Vocabularies: Offers structured vocabularies and authority files for describing art, architecture, and other cultural heritage materials.
  • Linked Art: Promotes the use of linked open data in the art world, connecting artworks, artists, museums, and other relevant information.
  • British Museum LOD: Makes a significant portion of its collection data available as linked open data.

Life Sciences

  • Bio2RDF: Provides life science data from various sources as linked data, facilitating integration and analysis.
  • EBI RDF Platform: Offers access to the European Bioinformatics Institute's vast biological data resources through linked data technologies.

Government & Public Data

  • Data.gov (US): The U.S. government's open data portal, providing access to datasets from various federal agencies.
  • Data.gov.uk: The UK government's open data portal, providing access to datasets from various public sector organizations.

Geographic Data

  • LinkedGeoData: A framework for publishing and connecting geographic data on the Web, enabling location-based queries and analysis.

5. LOD Use Cases and Case Studies

  • LOD Around the World: The LOD Cloud often features case studies showcasing the use of linked open data in various domains.
  • Search for academic papers and articles that showcase LOD applications in your area of interest.

6. LOD Communities and Events

  • Semantic Web Conference: A premier international conference dedicated to the advancement of semantic web technologies, including linked open data.
  • The Web Conference: A major international conference covering a wide range of web-related topics, including linked data and the semantic web.
  • Local LOD Meetups: Search for meetups in your city or region.

7. Learning Resources and Tutorials

8. Best Practices and Guidelines

  • W3C Best Practices for Publishing Linked Data: Guidelines to help individuals and organizations publish their data as linked open data.
  • Open Data Institute (ODI): "The ODI works with organisations to build data infrastructure, knowledge, and strategies that create trust in data and data practices. We bring together businesses, governments, and civil society to generate economic benefits and tackle real-world challenges using data.""

9. Tools for Visualizing and Querying Linked Data

  • YASGUI: A popular SPARQL query editor with auto-complete features for running SPARQL queries.

10. Additional Tools

  • Protégé: A free, open-source ontology editor and knowledge base framework.
  • TopQuadrant: "Seamlessly connect and govern your essential data, harnessing the power and clarity of knowledge graphs, to personalize search, automate operations, and safely deploy AI.""
  • GraphDB: "A robust RDF triplestore for storing, querying, and managing large linked data sets. GraphDB allows you to link diverse data, index it for semantic search and enrich it via text analysis to build big knowledge graphs.""