JudaicaLink Pubby

JudaicaLink Pubby is a linked data server that provides a human-readable and machine-accessible interface for RDF data. It serves as a SPARQL endpoint and Linked Data interface for querying and browsing JudaicaLink’s structured datasets.

Features of JudaicaLink Pubby

1. SPARQL Query Interface

Users can run SPARQL queries to retrieve structured information.
Supports Linked Data browsing by providing entity URIs.
SPARQL Endpoint: https://data.judaicalink.org/sparql.html.

2. RDF Data Exploration

Each entity has a dedicated RDF page, accessible through content negotiation.
Supports multiple formats, including RDF/XML, Turtle, and JSON-LD.
Example entity URL: https://data.judaicalink.org/data/html/yivo/moses-mendelssohn

3. Integration with Linked Data Services

JudaicaLink Pubby integrates with Wikidata, GND, VIAF, and DBpedia.
Provides structured URIs that link to external data sources.

How to Use JudaicaLink Pubby

1. Browsing RDF Data

Visit https://data.judaicalink.org.
Search for an entity (e.g., “Moses Mendelssohn”).
Click on an entity to view its RDF representation.

2. Running a SPARQL Query

Go to the SPARQL Endpoint: https://data.judaicalink.org/sparql.html
Enter a query, such as:

SELECT ?person ?name WHERE {
    ?person a jl:Person ;
    rdfs:label ?name .
} LIMIT 10

Execute the query and view results in JSON, XML, or CSV format.

3. Accessing Data in Different Formats

You can retrieve entity data in various formats using content negotiation:

HTML: https://data.judaicalink.org/data/html/yivo/moses-mendelssohn
JSON-LD: https://data.judaicalink.org/data/jsonld/yivo/moses-mendelssohn
RDF/XML: https://data.judaicalink.org/data/xml/yivo/moses-mendelssohn
Turtle*: https://data.judaicalink.org/data/ttl/yivo/moses-mendelssohn

Technical Overview

Backend

Built using Apache Jena Fuseki for RDF storage and SPARQL processing.
Uses Django Pubby for serving Linked Data.

Database & Data Sources

Stores data in RDF triple format.
Integrates external resources such as Wikidata, DBpedia, and GND.

Contributing to JudaicaLink Pubby

Setting Up a Development Environment

Clone the repository

git clone https://github.com/lod-pubby/pubby-django.git
cd pubby-django

Create a virtual environment

python -m venv venv
source venv/bin/activate  # On macOS/Linux
venv\Scripts\activate  # On Windows

Install dependencies

pip install -r requirements.txt

Run the development server

python manage.py runserver

Open http://127.0.0.1:8000/ in your browser.

Deployment

Pubby is deployed using Docker.
RDF data is loaded via SPARQL Update queries.

Troubleshooting & Support

SPARQL query errors? Check syntax and dataset availability.
RDF data not loading? Verify dataset ingestion.
Need help? Contact us at https://labs.judaicalink.org/contact/.

— JudaicaLink Pubby provides structured Linked Data access to Jewish studies datasets. Explore, query, and integrate JudaicaLink’s knowledge graph today! 🚀