DBpedia Ontology Time Machine

Ontologies change over time, which can affect downstream data, queries, and applications.

Context

This research prototype traces classes, properties, and structural changes across DBpedia ontology versions. A related package manager supports access to historical resources when the current ontology is unavailable or no longer matches an application.

My role

I worked on public tooling and documentation around ontology versioning in the DBpedia ecosystem. The work connected semantic web infrastructure, reproducibility, historical ontology access, and open-source collaboration.

Approach

• Inspect ontology versions and structural changes over time.
• Support access to archived or historical semantic web resources.
• Document progress and design decisions in a public GSoC project journal.
• Connect the prototype to broader ontology accessibility and failure recovery research.

Related pages

• Ontology proxy publication
• Knowledge graph and semantic web research
• GSoC 2024 project journal

Lessons

Semantic web systems need reliable access to historical context. Ontology evolution is a practical engineering concern when downstream applications depend on stable meaning over time.