Lucene Geo-Gazetteer

A command line gazetteer built around the Geonames.org dataset, that uses the Apache Lucene library to create a searchable gazetter.

Use

The Geonames.org dataset contains over 10,000,000 geographical names corresponding to over 7,500,000 unique features. Beyond names of places in various languages, data stored include latitude, longitude, elevation, population, administrative subdivision and postal codes. All coordinates use the World Geodetic System 1984 (WGS84).

1. What we need here is to download the latest version of allCountries.zip file from GeoNames.org: curl -O http://download.geonames.org/export/dump/allCountries.zip
2. and unzip the GeoNames file: unzip allCountries.zip
3. Take the allCountries.txt and use it to create a geoIndex: java -cp target/lucene-geo-gazetteer-<version>-jar-with-dependencies.jar edu.usc.ir.geo.gazetteer.GeoNameResolver -i geoIndex -b allCountries.txt
4. Then search the index (e.g., for Pasadena and Texas): java -cp target/lucene-geo-gazetteer-<version>-jar-with-dependencies.jar edu.usc.ir.geo.gazetteer.GeoNameResolver -i geoIndex -s Pasadena Texas
5. The service mode: #Launch Server $ lucene-geo-gazetteer -server # Query $ curl "localhost:8765/api/search?s=Pasadena&s=Texas&c=2"

Questions, comments?

Send them to Chris A. Mattmann.

Contributors

• Thamme Gowda N., USC
• Madhav Sharan, USC
• Yun Li, USC
• Chris A. Mattmann, JPL

Credits

This project began as the CSCI 572 project of Yun Li on the NSF Polar CyberInfrastructure project at USC under the supervision of Chris Mattmann. You can find Yun's original code base here.

This work was sponsored by the National Science Foundation under funded projects PLR-1348450 and PLR-144562.

License

Apache License, version 2