[JENA-10] GeoARQ: a geo location property function for ARQ

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: Jena 2.11.0
• Component/s: ARQ
• Labels: gsoc2013
• Assignee: Ying Jiang
• Reporter: Paolo Castagna
• Created: 13/Dec/10 15:24
• Updated: 11/Sep/13 17:22
• Resolved: 11/Sep/13 17:21

Description

Similarly to LARQ, we can use Lucene spatial capabilities to provide a geo/spatial property function for ARQ.

An initial and experimental implementation as proof of concept is available here: https://github.com/castagna/GeoARQ

The initial implementation can provide:

• ?s geoarq:nearby ( lat long ) // lat and long are in WGS 84, results are sorted by some "unspecified" score
• ?s geoarq:nearby ( lat long dist ) // restrict withing dist km from (lat,long)
• (?s ?d) geoarq:nearby ( lat long ) // results are sorted by distance (?d) which is made available to the user
• (?s ?d) geoarq:nearby ( lat long dist )
• ?s geoarq:within ( lat1, long1, lat2, long2 )

GeoARQ would be better as a separate module from ARQ (same as LARQ).