Rooted path finding

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Tim L edited this page Jul 17, 2013 · 5 revisions

What we will cover

This page enumerates some examples of a common problem to understand how two resource sets relate within a large RDF graph.

Example 1: Constructing void:Linksets from SPO Balance summaries

One dataset: SPO Balance of the exemplar dataset

Two target resource sets:

Objects of any sio:has-member
Instances of sd:NamedGraph

Objective:

Example 2: Two-level SPO Balance navigation

Four datasets with overlapping resources:

how-o-is-lod crawl,
SPO Balance against ieeevis.tw.rpi.edu/sparql,
Centrifuge's clustering, and
Centrifuge's tablized embedding.

Two target resource sets:

Instances of vsr:Root/prov:Collections (from Centrifuge),
Instances of vsr:SPODataset (from SPO Balance)

Objective:

See how these two sets relate within the graph.

Example 3: Datahub dataset to its dump file

How does http://datahub.io/dataset/twc-ieeevis relate to http://ieeevis.tw.rpi.edu/source/ieeevis-tw-rpi-edu/file/cr-full-dump/version/latest/conversion/ieeevis-tw-rpi-edu.nt.gz in a 1,130,030 triple, 4-dataset-union RDF graph? It should be void:dataDump, but the SPARQL query does not return results.