PAGOdA (original) (raw)

Overview

PAGOdA exploits a hybrid approach to answering conjunctive queries over OWL 2 ontologies that combines a datalog reasoner with a fully-fledged OWL 2 reasoner in order to provide scalable "pay as you go" performance. It delegates the bulk of the computation to RDFox and resorts to expensive reasoning by HermiT only as necessary to fully answer the query.

Currently, RDFox is used as the datalog reasoner andHermiT is used as the full OWL 2 reasoner.

Downloads

PAGOdA with a command line interface can be downloaded below.

By downloading the sources and/or binaries of PAGOdA, you agree to the followingacademic licence. If the provided package doesn't work on your machine, you need to compile RDFox yourself following the instruction onhttps://github.com/KRR-Oxford/PAGOdA and replace JRDFox.jar in the downloaded jar file. If you want to use PAGOdA as a library in your project, you could download thispagoda.jar and import it in your project. Please make sure that you also add all dependencies to your project. If you would like to contribute to the project, you can forkthe PAGOdA project on GitHub.

Using PAGOdA

Command is of the following form

java -jar pagoda.jar ONTOLOGY_PATH [DATA_PATH] QUERY_PATH [ANS_PATH]

where the data file is required to be in turtle format and queries in SPARQL syntax.

For more information, please refer to this guide.

Testsets

Lastest Datasets

Please check our evaluation page for JAIR 2015 submission.

Past Datasets

Ontologies, datasets and queries that have used for DL 2014 can be downloaded here:

• LUBM
• UOBM
• DBPedia + Travel
• NPD's Fact Pages