ViziQuer/web Tool for RDF Data Analysis Queries

Available in web browser!

Overview ViziQuer/web allows graphical construction and execution of rich data analysis queries over RDF data. ViziQuer/web supports both data instance level and aggregate queries.




Visual query endpoint The visual query engine is at http://185.23.162.165/. There is query engine development and detail fine tuning work still in progress.

Use login info demo@lumii.lv/demo123 to access a demo environment with pre-configured projects. Use Google Chrome for best experience.

A brief tool initial usage instruction is available.

Data schemas Every project has to be provided by a data schema for name completion and SPARQL generation, as well as by the SPARQL endpoint information. The pre-configured demo and sandbox environments have the data schemas pre-loaded, as well as there are pointers to the example schemas from this page.

An experimental web service for ViziQuer/web data schema retrieval from an OWL ontology (OWL RDF/XML syntax preferred) and from a SPARQL endpoint itself is available at http://85.254.199.72:8080/obis/.

Mini-University example See the working environment in ViziQuer/web demo and/or sandbox project.

Mini-university example ViziQuer/web data schema (for upload in new projects).

For new projects configure SPARQL endpoint to http://192.168.100.12:8833/sparql (access from demo ViziQuer/web environment only) Named graph = MiniUniv.

You can upload the example dataset to SPARQL endpoint of your choice and connect your project there (Currently only endpoints backed by OpenLink Virtuoso tested; updates to this to follow).

The ontology (OWL file) and its visualisation are available, as well.

Hospital data example See the working environment in ViziQuer/web demo and/or sandbox project.

Hospital example ViziQuer/web data schema (for upload in new projects).

For new projects configure SPARQL endpoint to http://192.168.100.12:8833/sparql (access from demo ViziQuer/web environment only) Named graph = MiniBkusEN.

Hospital data schema in a visual notation. The names of properties connecting the classes, if not specified, coincide with the target class name with lowercase first letter. There is default cardinality 1 assumption for all properties.


Further information on hospital data example is available here.

Linked Movie Database See the working environment in ViziQuer/web demo and/or sandbox project.

Linked MDB example ViziQuer/web data schema (for upload in new projects).

For new projects configure SPARQL endpoint to http://85.254.199.72:8890/sparql, Named graph = LinkedMDB.

The dataset is downloaded from http://www.cs.toronto.edu/~oktie/linkedmdb/