Research Topics

  • Ontology-Based Data Integration
    • Unified Foundational Ontology
    • Ontology Engineering 
    • Spatial and Temporal Ontologies
  • Semantic Web
    • Semantic Web Stack RDF(S), OWL (2), SPARQL,
    • Expressive Queries to Semantic Web Ontologies, SPARQL-DL,
    • Annotated Information Search
  • Semantic Information Systems
    • Enterprise Java,
    • OO programming,
    • UML,
    • Web & mobile technologies, 
  • Linked Data & Open Data
    • Data Quality
    • Semantic Data Description


JOPA 0.9.10 Release

New version of JOPA has just been released. It brings partial implementation of an important feature - SPARQL result set mapping.

At this moment, the mapping supports variable and constructor results. Constructor results are certainly more useful, since they allow one to map variable bindings from the result set to constructor parameters, so that data can be loaded from repository without using the usual entity lifecycle.

Entity results mapping is planned for the next release.

More Blog Entries

New DDO Release

DDO has been extended towards Weakly Described Resources. See here.

UFO 1.0.0 Released

A release of the Operational UFO 1.0.0 has been done. The ontology is documented using...