tadataka is a highspeed reverse geocoder that converts latitudes/longitudes
to addresses (including prefecture & city). The tool is named after Inō
Tadataka, the greatest Japanese surveyor.
Currently, it supports only Japanese address data.
Advantages to other solutions
Usually, using reverse geocoder, requires the use of public APIs(e.g., Google, Yahoo, etc.). However there are two problems:
- Security: In public APIs, one must send the data to an external company via a public network. It is problematic when handling confidential or private data.
- Speed: One will create POST the data per record. This causes horrid latency when handling big data.
tadataka solves them.
- Security of tadataka: All reverse-geocoding processes complete in one’s local computer.
- Speed of tadataka: There is no network latency, only disk I/O. Also, it uses Redis as the address database.
(情報処理学会第82回大会発表), High speed reverse geocoder using an in-memory
Ryo Aramaki (Keio University Faculty of Business and Commerce, RIKEN AIP Trainee), Takahiro Hoshino (Keio University Faculty of Economics, RIKEN AIP)