Greg
Thanks for the updates. They look like they will be useful.
Could you clarify how the 'distant matches' are calculated? I'm confused
by a couple of the errors it's thrown up:
http://gregrs.dev.openstreetmap.org/fhrs/district-270.html
'Sam Wellers', 'Longvernal Primary School' (at the very bottom). Their
fhrs:ids match. There's no postcode in OSM & the FHRS postcode is close
to it's true location. Their dashed lines point to the same location.
There's a third establishment at that location.
(http://ratings.food.gov.uk/business/en-GB/205481/) but it appears to
have a redundant postcode in FHRS.
Thanks
DaveF.
On 13/11/2016 09:10, Greg wrote:
Dear all,
The FHRS/OSM comparison tool
<http://gregrs.dev.openstreetmap.org/fhrs/> has some new features
which should help with the Autumn Quarterly Project
<http://wiki.openstreetmap.org/wiki/UK_2016_Q4_Project:_Food_Hygiene_Ratings>.
*Distant matches*
There is now a table at the bottom of each district page listing those
FHRS matches for which the OSM and FHRS positions are > 500m apart.
For these matches, the overview map also has a dotted line showing the
difference in positions. N.B. OSM positions are usually more accurate
as FHRS positions seem to be reverse-geocoded from postcodes. These
distant matches may therefore indicate a problem with the FHRS data
rather than OSM data, but are worth checking.
*Duplicate fhrs:ids*
There is also a table at the bottom of each district page listing all
of the OSM entities which have an fhrs:id tag that is shared with at
least one of the OSM entities in this district. This can indicate an
error, although sometimes FHRS IDs do correspond to more than one OSM
entity.
The suggested matches map no longer suggests matches using FHRS IDs
that have already been assigned to an OSM entity. (Thanks to spindr
for spotting this one.)
*Updating OSM data*
The update script now runs a bit later in the morning (after the
Geofabrik OSM extract becomes available) and thanks to some
optimisations, takes much less time to complete. The lag between
updating OSM and seeing your updates appear in the comparison tool
should therefore have reduced a bit, although not disappeared completely!
I hope you continue to enjoy using the comparison tool. As ever,
please report any bugs or feature requests on GitHub
<https://github.com/gregrs-uk/python-fhrs-osm/issues>.
Thanks,
Greg
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