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schemas's Introduction

Histograph Schemas

Ontology

Three namespaces:

Namespace Name URI
hg Histograph http://schema.histograph.io/#
time Time Ontology http://www.w3.org/2006/time#
geo GeoSPARQL http://www.opengis.net/ont/geosparql#

Relations

Concept

  • hg:conceptIdentical
  • hg:conceptIsWithin
  • hg:conceptContains
  • hg:conceptIntersects

Type

  • hg:typeBroader
  • hg:typeNarrower
  • hg:typeIntersects

Geo

http://en.wikipedia.org/wiki/GeoSPARQL

  • geo:sf-disjoint
  • geo:sf-touches
  • geo:sf-overlaps
  • geo:sf-equals
  • geo:sf-within
  • geo:sf-contains
  • geo:sf-intersects

Time

http://www.w3.org/TR/owl-time/#summary

  • time:intervalEquals
  • time:intervalBefore
  • time:intervalMeets
  • time:intervalOverlaps
  • time:intervalStarts
  • time:intervalDuring
  • time:intervalFinishes
  • time:intervalAfter
  • time:intervalMetBy
  • time:intervalOverlappedBy
  • time:intervalStartedBy
  • time:intervalContains
  • time:intervalFinishedBy

Elasticsearch mapping

See elasticsearch/pit.json.

Histograph IO - JSON schemas

Histograph IO uses the following JSON Schema files to validate all data going into Histograph:

schemas-from-ontology.js

schemas-from-ontology.js reads the Histograph ontology from histograph.ttl and writes constraints in JSON schema files (json/pits.schema.json and json/relations.schema.json).

Install dependencies:

npm install

Run:

node schemas-from-ontology.js

schemas's People

Contributors

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Watchers

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