5 replies to this topic

[AIGIS]

Hello all, I am wondering if you guys have come along free online geocoders which work well. Accuracy, Speed and Percentage successfully geocoded are all top priorities for me. Also, same question but for reverse geocoders.

Second, how would one test for accuracy of geocoded points? Thanks!

[Hans van der Maarel]

Hello all, I am wondering if you guys have come along free online geocoders which work well. Accuracy, Speed and Percentage successfully geocoded are all top priorities for me. Also, same question but for reverse geocoders.

Second, how would one test for accuracy of geocoded points? Thanks!

I've recently used the Yahoo geocoder and that seemed to work pretty okay. It's an area I'm not personally familiar with so I can't doublecheck the results easily, but out of 3000+ locations it managed to geocode everything. Pretty sluggish though, it took 20 minutes in FME to slug through that.

As for testing, put in a few nasty addresses that you are personally familiar with and see what they come up with. Something rural, something with a house number and letter etc.

[Jimbo]

Careful with what geocoder you use because often you may find geocoded addresses in the sea.

[sara.m.]

I recently used http://www.batchgeocode.com and found it to be really well done and reliable. It is quite slow however.

Edited by sara.m., 11 February 2009 - 11:28 AM.

[stroeh]

a geocoding list by google
http://groups.google...oogle-geocoders
or
http://www.gpsvisualizer.com/geocoder/

but i love this excel sheet
http://joergnapp.de/...7/geocoding.xls
on
http://joergnapp.de/...excel-reloaded/
quite simple, have a look at the functions in column B-G...
using the yahoo api, 5000 requests per day

maybe get your own yahooID
https://developer.ya.../index.php?view

[rudy]

I recently used http://www.batchgeocode.com and found it to be really well done and reliable. It is quite slow however.

I use this too. although slow, I like it. Or for the tech-savvy and Canadians among the group there's geocoder.ca. They have an API that you can use to build an application that will geocode your addresses.