Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-18 Thread Jean-Marc Liotier
Jean-Marc Liotier wrote:
 Micha Ruh wrote:
 2010/1/16 Jean-Marc Liotier j...@liotier.org mailto:j...@liotier.org

 I tried to
 replace building=collapsed with earthquake:damage=collapsed_building

 Please don't, it's useless, if not harmful.

 Why do you want to replace a simple, understandable, well established,
 broadly supported tag with something THAT complicated?

 It's ok, that another tag with the same meaning exists due to imports,
 but please DO NOT change well known and used tags with another one
 coming from an import.

 Especially not when the new tag is 35 chars long. Try editing that in
 potlatch.
 
 Take a look at tagstats :
 
 tag   value   usesnodeway
 building  collapsed   1,045   747 298
 earthquake:damage collapsed_building  1,473   1,465   8
 
 We have two tags to describe the same thing. One is apparently more
 widespread, more conformant to published standards and semantically
 superior.
 
 What do others think ? Is tag length such an issue ? Doesnt
 autocompletion solve the problem of tag length ? Is it desirable to
 standardize ? Isn't it harmful to have two tags to describe the same
 thing ? Is the value of harmonization inferior to the value of not
 disturbing habits taken in the last few days ? Do we have past
 experience or a policy for such things ?

If the idea of removing one of the two does not generate enthusiasm,
would applying both tags everyhere be a better idea ? I don't believe
so, but I would love to read other opinions...

Actually, I'm surprised that no one else commented on this data quality
issue. Not a big issue mind you, but I'm wondering anyway...

Tagstat update :
http://tagstat.hypercube.telascience.org/haiti/tagdetails.php?tag=building
http://tagstat.hypercube.telascience.org/haiti/tagdetails.php?tag=earthquake:damage

tag value   uses
buildingcollapsed   5,214
earthquake:damage   collapsed_building  3,107
buildingyes 7,743


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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-18 Thread Micha Ruh
Hi Jean-Marc,


2010/1/16

  Take a look at tagstats :
  tagvalueuses
  nodeway
  building collapsed 1,045   747
   298
  earthquake:damage collapsed_building   1,473   1,465   8



 2010/1/18
 tag   value uses
 buildingcollapsed  5,214
 earthquake:damagecollapsed_building3,107


Looks to me that both variants got a huge increase in use over the last 2
days.
So if you want to replace one variant with the other, you end up doing it
constantly,
as users seem to constantly add more collapsed buildings in both variants.

Also it looks like the 'easier' variant is more accepted.

Yes, it is 'ugly' in terms of data quality, but I see no problem so far.

Maybe eventually it gets reasonable to unify those tagging variants, when
the growing rate sinks significantly, but, in the long term the information
will
be removed from OSM anyway.

We can learn from this and do it better the next time.


Regards Micha
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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-16 Thread Jean-Marc Liotier
Micha Ruh wrote:
 2010/1/16 Jean-Marc Liotier j...@liotier.org mailto:j...@liotier.org

 I tried to
 replace building=collapsed with earthquake:damage=collapsed_building
 
 Please don't, it's useless, if not harmful.
 
 Why do you want to replace a simple, understandable, well established,
 broadly supported tag with something THAT complicated?

 It's ok, that another tag with the same meaning exists due to imports,
 but please DO NOT change well known and used tags with another one
 coming from an import.
 
 Especially not when the new tag is 35 chars long. Try editing that in
 potlatch.

Take a look at tagstats :

tag value   usesnodeway
buildingcollapsed   1,045   747 298
earthquake:damage   collapsed_building  1,473   1,465   8

We have two tags to describe the same thing. One is apparently more
widespread, more conformant to published standards and semantically
superior.

What do others think ? Is tag length such an issue ? Doesnt
autocompletion solve the problem of tag length ? Is it desirable to
standardize ? Isn't it harmful to have two tags to describe the same
thing ? Is the value of harmonization inferior to the value of not
disturbing habits taken in the last few days ? Do we have past
experience or a policy for such things ?


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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Jonas Krückel

Am 15.01.2010 um 23:06 schrieb nicolas chavent:

 
 Hi there
 
 Here's a set of humanitarian data models for consideration in the making of 
 the OSM tags for the Haiti Operation to make our data easily readable and 
 interoperable with other established thematic data sets of relevance and used 
 by the hum mapping community in the response to the Haiti EQ.
 
 [...]
 
 See attached in html the UNOSAT and ITHACA data models from their last 
 releases.
 
 Damage Assessment Data model in support of OSM tagging
 
 UNOSAT
 Data model from UNOSAT KML
 IDP Sites
 Bridges
 Obstacles
 Operational Status
 Closed
 Restricted
 ITHACA
 Data model from ITHACA shp
 Categories - Classes
 collapsed buildings
 damaged infrastructure
 landslide
 spontaneous camp

This data has been imported and I already got newer data. Help and suggestions 
for syncing and merging data in the future is needed.
More info on that: 
http://wiki.openstreetmap.org/wiki/WikiProject_Haiti#Ithaca_Import

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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Jean-Marc Liotier
Jonas Krückel wrote:
 Am 15.01.2010 um 23:06 schrieb nicolas chavent:
 * ITHACA
   o Data model from ITHACA shp
   o Categories - Classes
 + collapsed buildings
 + damaged infrastructure
 + landslide
 + spontaneous camp 
 
 This data has been imported and I already got newer data. Help and
 suggestions for syncing and merging data in the future is needed.

 More info on
 that: http://wiki.openstreetmap.org/wiki/WikiProject_Haiti#Ithaca_Import

Talking about the ITHACA data set... I just took a look at the dedicated
Haiti Tagstats and I just found that the import of earthquake:damage
tags has been done with a value of collapsed_buiding that of course
should be collapsed_building :

tag value   usesnode
earthquake:damage   collapsed_buiding   1,496   1,495

But I don't know yet how to perform mass edits to correct such typo...
Can anyone do that - and tell us how it is done ?

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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Jonas Krückel

Am 15.01.2010 um 23:32 schrieb Jean-Marc Liotier:

 Jonas Krückel wrote:
 Am 15.01.2010 um 23:06 schrieb nicolas chavent:
* ITHACA
  o Data model from ITHACA shp
  o Categories - Classes
+ collapsed buildings
+ damaged infrastructure
+ landslide
+ spontaneous camp 
 
 This data has been imported and I already got newer data. Help and
 suggestions for syncing and merging data in the future is needed.
 
 More info on
 that: http://wiki.openstreetmap.org/wiki/WikiProject_Haiti#Ithaca_Import
 
 Talking about the ITHACA data set... I just took a look at the dedicated
 Haiti Tagstats and I just found that the import of earthquake:damage
 tags has been done with a value of collapsed_buiding that of course
 should be collapsed_building :
 
 tag   value   usesnode
 earthquake:damage collapsed_buiding   1,496   1,495
 
 But I don't know yet how to perform mass edits to correct such typo...
 Can anyone do that - and tell us how it is done ?

I think I've fixed it. Using http://www.petschge.de/osm/fixme_haiti/ and JOSM. 
No conflicts when uploading, 14xx objects changed.

Jonas
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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread John Smith
2010/1/16 Jean-Marc Liotier j...@liotier.org:
 But I don't know yet how to perform mass edits to correct such typo...
 Can anyone do that - and tell us how it is done ?

Use the search function in JOSM and just edit the tag in the tag pane.

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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Patrick Kilian
Hi all,

 But I don't know yet how to perform mass edits to correct such
 typo... Can anyone do that - and tell us how it is done ?
 
 I think I've fixed it. Using http://www.petschge.de/osm/fixme_haiti/
 and JOSM. No conflicts when uploading, 14xx objects changed.
Looks good. Only 4 collapsed_buiding left.


Patrick Petschge Kilian

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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Jean-Marc Liotier
Jonas Krückel wrote:
 Am 15.01.2010 um 23:32 schrieb Jean-Marc Liotier:
 
 Talking about the ITHACA data set... I just took a look at the
 dedicated Haiti Tagstats and I just found that the import of
 earthquake:damage tags has been done with a value of
 collapsed_buiding that of course should be collapsed_building :
 
 I think I've fixed it. Using http://www.petschge.de/osm/fixme_haiti/
 and JOSM. No conflicts when uploading, 14xx objects changed.

Now we have :

tag value   uses
earthquake:damage   collapsed_building  1,499
fixme:building  collapsed   1,492
buildingcollapsed   787
earthquake_damage   collapsed   2

Time for harmonization ?

earthquake_damage should obviously be earthquake:damage.

fixme:building=collapsed looks like it should be
earthquake:damage=collapsed_building - but maybe there is a reason for
fixme that I'm not aware of.

earthquake:damage=collapsed_building is the ITHACA way. Should we
convert all the building=collapsed to it ? I would say yes, because
collapsed is not a type of building but a building attribute - the
ITHACA way is semantically superior.

If no one is depending on fixme:building=collapsed or
building=collapsed then I'll convert them. Does the map rendering of
collapsed buildings such as http://zvenzzon.mine.nu:81/map.html
understand earthquake:damage=collapsed_building ? Considering the
number of icons represented, it would appear so.


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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Jonas Krückel

Am 16.01.2010 um 00:08 schrieb Jean-Marc Liotier:

 Jonas Krückel wrote:
 Am 15.01.2010 um 23:32 schrieb Jean-Marc Liotier:
 
 Talking about the ITHACA data set... I just took a look at the
 dedicated Haiti Tagstats and I just found that the import of
 earthquake:damage tags has been done with a value of
 collapsed_buiding that of course should be collapsed_building :
 
 I think I've fixed it. Using http://www.petschge.de/osm/fixme_haiti/
 and JOSM. No conflicts when uploading, 14xx objects changed.
 
 Now we have :
 
 tag   value   uses
 earthquake:damage collapsed_building  1,499
 fixme:buildingcollapsed   1,492
 building  collapsed   787
 earthquake_damage collapsed   2
 
 Time for harmonization ?
 
 earthquake_damage should obviously be earthquake:damage.
 
 fixme:building=collapsed looks like it should be
 earthquake:damage=collapsed_building - but maybe there is a reason for
 fixme that I'm not aware of.
 
 earthquake:damage=collapsed_building is the ITHACA way. Should we
 convert all the building=collapsed to it ? I would say yes, because
 collapsed is not a type of building but a building attribute - the
 ITHACA way is semantically superior.
 
 If no one is depending on fixme:building=collapsed or
 building=collapsed then I'll convert them. Does the map rendering of
 collapsed buildings such as http://zvenzzon.mine.nu:81/map.html
 understand earthquake:damage=collapsed_building ? Considering the
 number of icons represented, it would appear so.

Please have a look at the information here: 
http://wiki.openstreetmap.org/wiki/WikiProject_Haiti#Ithaca_Import
Please do not change this tags right now. We are still not sure how to work on 
further updates of the data and Ithaca might also still need this tags.

Jonas

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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Jean-Marc Liotier
Jonas Krückel wrote:
 Am 16.01.2010 um 00:08 schrieb Jean-Marc Liotier:
 [..]
 fixme:building=collapsed looks like it should be 
 earthquake:damage=collapsed_building - but maybe there is a
 reason for fixme that I'm not aware of.
 [..]
 
 Please have a look at the information here:
 http://wiki.openstreetmap.org/wiki/WikiProject_Haiti#Ithaca_Import 
 Please do not change this tags right now. We are still not sure how
 to work on further updates of the data and Ithaca might also still
 need this tags.

The text from the wiki at the above adresse :

---

After checking the data, please remove the fixme tags in front of the
other tags. Please keep the source tags.

To find data that needs fixing (data with FIXME= ), open the
ithaca-import-fixme.gpx from here in JOSM and zoom to the little crosses.

---

So yes, there is definitely a reason for fixme that I was not aware
of. I'll leave them alone !

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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Jean-Marc Liotier
Jean-Marc Liotier wrote:
 
 Now we have :
 
 tag   value   uses
 earthquake:damage collapsed_building  1,499
 fixme:buildingcollapsed   1,492
 building  collapsed   787
 earthquake_damage collapsed   2
 
 Time for harmonization ?
 
 earthquake_damage should obviously be earthquake:damage.

Corrected two occurences. Edit at
http://www.openstreetmap.org/browse/changeset/3628429

 fixme:building=collapsed looks like it should be
 earthquake:damage=collapsed_building - but maybe there is a reason for
 fixme that I'm not aware of.

As explained earlier, there is a reason for that, so I did not touch
anything with fixme:

 earthquake:damage=collapsed_building is the ITHACA way. Should we
 convert all the building=collapsed to it ? I would say yes, because
 collapsed is not a type of building but a building attribute - the
 ITHACA way is semantically superior.

Where a building=collapsed was present, I want to set
earthquake:damage=collapsed_building instead. This would touch about
815 objects.

Everywhere earthquake:damage=collapsed_building was present, I want to
add building=yes which seems logical and helps proper rendering. This
would touch 2290 objects.

All that seems logical to me, and I embarked upon doing it. I managed to
make clean selections and edit them - but then on uploading my changeset
would conflict with other data.

I tried to get http://labs.geofabrik.de/haiti/latest.osm.bz2 and then as
fast as I could (that is - not so fast on my four years old laptop) to
replace building=collapsed with earthquake:damage=collapsed_building
and then add building=yes everywhere
earthquake:damage=collapsed_building was set... And everytime a
conflict would prevent upload.

I tried again five times... I give up for now - I'm going to bed - feel
free to take it from there.

Am I doing something wrong ? Is JOSM the right tool for editing tags on
3k objects or is there another way I sould use ?


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Re: [OSM-talk] OSM Tagging for Haiti: Humanitarian Data Models in support of OSM tagging for Haiti EQ

2010-01-15 Thread Micha Ruh
2010/1/16 Jean-Marc Liotier j...@liotier.org

 Jean-Marc Liotier wrote:
 I tried to
 replace building=collapsed with earthquake:damage=collapsed_building


Please don't, it's useless, if not harmful.

Why do you want to replace a simple, understandable, well established,
broadly supported tag with something THAT complicated?
It's ok, that another tag with the same meaning exists due to imports, but
please DO NOT change well known and used tags with another one coming from
an import.

Especially not when the new tag is 35 chars long. Try editing that in
potlatch.


Thank you.

Regards, Micha
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