[Talk-us] Special issues in LA remap

Charlotte Wolter techlady at techlady.com
Wed Jun 6 02:25:12 BST 2012


         Thanks for your thoughts, and I hope others in the community 
will share their views. My view would be that it should be OK to do 
such a reverse if the person has not signed the new license, 
particularly when there has been such an enormous number of questionable edits.
         If it is decided to do reversals, I suggest we start with 
his most recent changesets and work backward, little by little. 
Though most of his "edits" follow a definite pattern, a few appear to 
be unique, genuine edits much like the work we all do. I'll bet the 
most recent work is what was done robotically.
         Also, to give a little more information, many of the "edits" 
often show up as intersections that must be deleted and redrawn. This 
is a particularly time-consuming process, as, I believe, "blars" knew.


At 11:56 AM 6/5/2012, you wrote:
>>         I have been working on the LA remap, which mostly involves 
>> correcting thousands and thousands of edits by a user named "blars."
>>         The odd thing about the "edits" that "blars" did is that 
>> they seem to have been done almost robotically. Although many 
>> intersections have been changed enough to be marked "modified" by 
>> the OSM Inspector, it's difficul to see what, if anything, was 
>> done. The poor street alignments from TIGER have not been 
>> corrected. Obvious issues, such as a street that no longer exists, 
>> have been ignored. Almost every single dead-end street or those 
>> with turning circles are "modified," as are many intersections, 
>> but, again, bad alignment has not been touched.
>>         All this plus the sheer volume of changes makes me think 
>> that "blars" used some kind of bot to make these changes. These 
>> "edits" corrected or added little, except to make the map 
>> "modified" for the new license.
>>         Perhaps someone who knows JOSM or other tools better than 
>> I do could come up with a way to make these repairs on a mass 
>> basis. Or, perhaps, there is a wasy to reverse just what blars did 
>> within a certain time frame.
>>         I appreciate any help you can give. I've put in hundreds 
>> of hours on this and barely scratched the surface.
>Hello Charlotte:
>I have been watching the fine efforts in greater LA, with impressive 
>progress and results (in a "slow and steady" way), so I first wanted 
>to congratulate you on your efforts, and especially reaching out to 
>this talk group.  You have done much more than scratch the surface, 
>you (and others) are making real progress.
>One method may be to revert changesets by blars.  Reverting 
>changesets can be controversial (it is polite to ask / reach 
>consensus with the original author, et cetera).  However, in the 
>case of an editor who has not agreed to the new CT, it may be 
>correct for OSM users who HAVE agreed to the new CT to establish 
>if/when/how this is an OK/proper thing to do.  And then feel OK 
>doing it, and then do it.
>Technically, reverting a changeset is rather easily done with a JOSM 
>plug-in, which you can read about on OSM's wiki.  There is the 
>separate issue of IDENTIFYING which changeset to revert, which can 
>be "more difficult" and then there is the rather straightforward 
>procedure for doing it, which isn't difficult.
>But "socially," or more properly stated, in the context of "reaching 
>OSM consensus," what does our community think of (rather wholesale) 
>reverts of a contributor who has not agreed to the CT?  Are we OK 
>with that?  Apologies if this is already clearly stated somewhere. 
>But if so, I haven't seen it and it is high time we freshen up 
>how/where we are about this.
>Talk-us mailing list
>Talk-us at openstreetmap.org

Charlotte Wolter
927 18th Street Suite A
Santa Monica, California
techlady at techlady.com
Skype: thetechlady

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