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RE: [IMRG] Help us test GeoLIM

From: Cottrell, Les <cottrell(at)slac.stanford.edu>
Date: Wed May 04 2005 - 15:20:38 EDT


The idea is great. I would like to use it to find hosts that are hard to find and/or to verify conceptions of where hosts are located (e.g. using the TLD or http://www.ip2location.com/ or whois etc.) However, so far it has not worked well for me. My guess is that I am trying to find hosts in Africa, S. Asia and S. America and you have few landmarks that cover these regions. This may be deliberate since you mention planetLab. However, it reduces the usefulness of the tool. I may be able to help with providing landmark sites in Africa, Pakistan, Bangalore, Brazil which might improve your accuracy and help me get better localization. Contact me (off the list) if interested.


From: imrg-bounces@ietf.org [mailto:imrg-bounces@ietf.org] On Behalf Of Mark Crovella Sent: Tuesday, May 03, 2005 12:31 PM
To: imrg@irtf.org
Subject: [IMRG] Help us test GeoLIM

Dear Colleague,

We are developing the GeoLIM project (http://planetlab-01.ipv6.lip6.fr:10000/cbg.php <http://planetlab-01.ipv6.lip6.fr:10000/cbg.php> ) which aims at providing the geographic location of an Internet host based solely on its IP address. The key element of GeoLIM is its ability to transform delay measurements between landmarks (probe machines) and a target host into geographic distance constraints. It uses multilateration - like GPS - to estimate the geographic location of the target host.

We're seeking your help. We ask you to test the geolocation solution through the web page. This will take you no more than 3 minutes!

In particular, we are looking for people to test the accuracy of our methods on various host types. For instance, with the same IP address, estimate your location when you access the internet through a low or high-speed line (telephone or DSL/LAN).

We're also looking for more Landmark nodes (nodes used to provide the coordinates of the system). Therefore, we need the name of the node and its latitude/longitude. We' d be glad if you could provide us with the name and location of such a host.

Do not hesitate to distribute this mail to colleagues interested.

Do you need help?X

The test is carried out on Planetlab (http://www.planet-lab.org/).

We thank you for your contribution. More details about our algorithm can be found at (http://rp.lip6.fr/~gueye/articles/imc04-geolocation-full.pdf <http://rp.lip6.fr/%7Egueye/articles/imc.pdf> )

Contact : bamba.gueye@lip6.fr

-- 
Bamba Gueye
http://rp.lip6.fr/~gueye <
http://rp.lip6.fr/%7Egueye> 

_______________________________________________ IMRG mailing list IMRG@ietf.org https://www1.ietf.org/mailman/listinfo/imrg Received on Wed May 4 15:22:33 2005

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