Comments on: Rooftop geocoding introduced to Google Maps; Time for a Virtual Earth rematch?

By: William M. Hartnett

William M. Hartnett — Fri, 28 Nov 2008 17:19:25 +0000

@Brian: No, I don’t know much about geocoding accuracy outside of the United States.

By: Brian Sobel

Brian Sobel — Fri, 28 Nov 2008 08:31:32 +0000

Any idea of how MSVE compares with international addresses?

By: William M. Hartnett

William M. Hartnett — Mon, 03 Nov 2008 23:57:53 +0000

@Alex: Like most of the imagery and street data in both companies’ mapping products, the geocoding technology appears to usually come from outside providers.

By: Alex

Alex — Mon, 03 Nov 2008 22:52:06 +0000

Yes, but where are these rooftops geocodes coming from? It’s not based on a process like address geocoding, it’s based on a database of locations that happen to match the address being searched on. But who provides the data? I do not think it is that Google and MS are actually originated the data…

By: William M. Hartnett

William M. Hartnett — Thu, 07 Aug 2008 20:08:27 +0000

@Richard: Was just quoting, and linking to, the figure listed on one of the official Virtual Earth blogs in April 2008.

By: Richard

Richard — Thu, 07 Aug 2008 19:52:16 +0000

Virtual Earth had rooftop geocoding for 60 million location sin the US last October. They now have over 90 million.

By: foolscap » Map Visualization with WPF and Silverlight

foolscap » Map Visualization with WPF and Silverlight — Fri, 27 Jun 2008 11:09:33 +0000

[...] Rooftop Geocoding: Virtual Earth & MapPoint; Google Maps; [...]