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GeoNames is … Gazetteer aggregator of open geo data I am... Marc Wick GeoNames.
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Transcript of GeoNames is … Gazetteer aggregator of open geo data I am... Marc Wick GeoNames.
GeoNames is …Gazetteer
aggregator of open geo datawww.geonames.org
I am ...Marc Wick
GeoNames
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Gazetteer
Over 7.5 million features (points) Pragmatic, useful, ease of use Cc-by licence 9 feature classes, 600 feature codes Available as extract or via web service
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Attributes
Name Latitude / Longitude Classification (FeatureClass>FeatureCode) Country, Administrative Divisions (<=4) Alternate Names (Endonyms/Exonyms) Population Elevation Timezone
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Data Sources
National Geospatial-Intelligence Agency (NGA) National Mapping Agencies (GNIS, GeoBase, …)
Statistical Offices >120 sources
User contributions (>14000 registered users) Data files Manual modifications
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Feature Density Map
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Trend – Open Government Data
USA, later Canada, Australia, ... Europe: UK, Spain, Italy, Switzerland,
Denmark,...
Why : Economy Shift from 'paper' to bytes
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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License
Cc-by - 'attribution' Other open licenses:
Cc0 Public domain
Not open licenses: All 'share-alike' (odbl etc)
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Challenges for Aggregators
FeatureCodes not 1:1 non-ASCII Country codes Admin divisions
Merge Apply periodic
Updates
Pattern matching Transliteration
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Contributors
Users (> 14'000 contributors): Individuals Companies and Organisations Edit interface or data files
Focus: Topic or Area Few do a lot
Preserve contribution with periodic updates
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Quality Assurance
Validation checks while entering data User levels Consistency Checks Verification and Confirmation of relevant
modifications 'many eyes'
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Hierarchy
Hierarchy Child Neighbour Sibling
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Ontology – Semantic Web
Ontology RDF export, 150 mio triples Linked Data
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Applications using GeoNames
thousands of applications reverse geocoding site navigation search / geo-coding
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Webservices
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Historic Gazetteer
Codes for 'abandoned' features Populated places Airports
Alternate names Iso language codes Pseudo code: fr_1793
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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ISO Codes for Historic Languages
arc arc Official Aramaic (700-300 BCE)
ell Modern Greek (1453-)Middle English (1100-1500)
fro fro
Ancient Greek (to 1453)Middle Irish (900-1200)
oar Old Aramaic (up to 700 BCE)
Middle Korean (10th-16th cent.)Old Korean (3rd-9th cent.)Ottoman Turkish (1500-1928)
pro pro Old Provençal (to 1500)Old Irish (to 900)
ang ang Old English (ca. 450-1100)
dum dum Middle Dutch (ca. 1050-1350)el elenm enmfrm frm Middle French (ca. 1400-1600)
Old French (842-ca. 1400)gmh gmh Middle High German (ca. 1050-1500)goh goh Old High German (ca. 750-1050)grc grcmga mga
oci oci oc Occitan (post 1500)okmokoota otapeo peo Old Persian (ca. 600-400 B.C.)
sga sgatmr Jewish Babylonian Aramaic (ca. 200-1200 CE)
GeoNames, Marc Wick Historical Gazetteers for Space-Time Integration 13. April Seattle
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Thank you for your attention.