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From: Jem R. <jem...@ft...> - 2016-07-25 14:44:34
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Hello, I would like to index geonames lat/long using Blazegraphs geospatial index. Geonames lat/longs are provided in the following flavour of RDF: <http://sws.geonames.org/4667981/> < http://www.w3.org/2003/01/geo/wgs84_pos#lat> "35.79787" . <http://sws.geonames.org/4667981/> < http://www.w3.org/2003/01/geo/wgs84_pos#long> "-83.44683" . I was wondering if anyone has already worked on Custom Geospatial Data types, vocabularies etc for Geonames in Blazegraph ? It appears that one would need flatten the objects into a single multidimensional literal for indexing? <http://sws.geonames.org/4667981/> somenamespace:latlong "35.79787#-83.44683" With the configuration and definition of a new literal type? I am wondering if its possible to index on multiple known predicates rather than multidimensional literals with extended data types? Cheers -- *Jem Rayfield* Head of Solution Architecture Technology +44 (0)7709 332482 Number One Southwark Bridge, London SE1 9HL <https://www.facebook.com/financialtimes> <https://twitter.com/FT> <http://www.linkedin.com/company/financial-times> <https://plus.google.com/+FinancialTimes/posts> <http://www.youtube.com/user/FinancialTimesVideos> -- ------------------------------ *This email was sent by a company owned by Financial Times Group Limited ("FT Group <http://aboutus.ft.com/corporate-information/#axzz3rajCSIAt>"), registered office at Number One Southwark Bridge, London SE1 9HL. Registered in England and Wales with company number 879531. This e-mail may contain confidential information. If you are not the intended recipient, please notify the sender immediately, delete all copies and do not distribute it further. It could also contain personal views which are not necessarily those of the FT Group. We may monitor outgoing or incoming emails as permitted by law.* |