[Moderation] Revert request - Russia, Irkutsk - Evgeny Mandrikov

[Peter Miller]

On 3 Oct 2009, at 09:47, John Smith wrote:

> 2009/10/3 Mark Williams <mark.666 at blueyonder.co.uk>:
>> I agree that using copyright sources is a separate issue, and can  
>> only
>> hope that if someone did start to do that the finger gets pointed at
>> that person not OSM - if it was demonstrable from changesets that  
>> that
>> was someone's modus operandi this may be a distinct possibility?
>
> That is another problem I hadn't considered, intentionally copying
> someone else's data for the purpose of causing problems for OSM.

In order to avoid legal trouble OpenStreetMap needs to demonstrate  
that it is actively involved with a) discouraging use of copyright  
material, b) looking for it, c) removing it when we find it. I believe  
that our job on this list is to help provide the tools to allow people  
look for issues and establish what is happening.

I suggest we talk about 'signatures' in map sources not easter eggs -  
signatures which might be deliberate errors (a proper 'easter egg') or  
could be an error on their part - either way it is something that is  
on the map that doesn't match reality. A signature error could be a  
mis-placed road, an additional road, a missing road, a misnamed road -  
or building or pond or .... etc etc. We will not know if the error was  
deliberate or not so can't say if it an easter egg or a mistake, but  
it is a signature that should not appear in an idependently produced  
work.

To establish if something is copied I suggest we need some nice tools  
for looking for these signatures.

One way is a visual comparison of imported data in OSM with other  
probably sources of what is on the ground and also the possible  
sources of the plagerised material  - including photography and  
proprietary mapping.

Geogabrik's map Compare tools is pretty good for this, but it doesn't  
overlay the information which would allow one to compare registration.  
ITO's OSM Mapper KML out does all one to compare registration but not  
names or classification so easily.

One does of course need to be careful that these tools are not then  
used to compare map sources and copy the very errors we are trying to  
identify from the copyright material to OSM!


Regards,


Peter



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