Hi Christian, (shortening the last message to comment on some parts only) Am 24.05.2014 16:04, schrieb Christian Quest:
> BANO is not designed to be used as an import source for OSM. > It uses sources (opendata, cadastre) that can be imported in OSM. > These sources have been used over the past years and will still be used to > add addresses in OSM, one at a time, or street by street which will take > years before completion. > > So, BANO is there to allow to use all the available address data right now > without having to wait years to get them cleanly added to OSM. I agree - but why should anybody add the data manually to osm if it's even not visible any more where data is missing, as in Nominatim both sources look the same. > This has one good side effect... reduce the pressure on massive address > imports in OSM and give us the opportunity to improve the quality thru > survey prior to add it to OSM. I agree if you propose BANO as a data source for any private or third party setup of nominatim or openstreetmap data, but I oppose it to be used in the projects instances. Mappers detect errors and missing data while using these instances. I add missing streets occasionally after I failed to find them in OSM - using the map renderings, nominatim or other tools. I wouldn't even detect that they are missing when nominatim would return the results from another source. > 2014-05-24 12:58 GMT+02:00 Peter Wendorff <wendo...@uni-paderborn.de>: >> Adding it to (the osm installation of) nominatim on the other hand is a >> bad idea, I think: >> IMHO nominatim.openstreetmap.or should rely on OSM as a data source as >> pure as possible. Adding different data sets might be useful to add >> information not possible or out of scope of the osm database (like >> importance factors using the wikipedia links), but BANO is a different >> thing. >> >> If the BANO addresses are free and open enough for OSM, we should >> encourage to work on bringing them to the OSM database itself (provided, >> they are GOOD enough as well). How should anybody in France get >> motivation to collect more addresses for the osm database itself, if >> anything is available in BANO already? >> > > I'm pushing the french community to be more motivated on having all streets > and all streets name in OSM (BANO allowed us to detect 40% missing streets > or street names) more than adding addresses without surveying them. Great - but I fear, the availability of third data sources like BANO through the usual tools destroys motivation again, the motivation get's an extrinsic one, because the intrinsic need of mappers to get rid of errors and missing results using OSM is missing due to results returned out of the BANO data. > I agree to motivate to collect BETTER address data... it we collect the > same data with the same quality level it looks to me more losing our time > than anything else. Mappers are better than you might think. Collecting the same data with the same quality level is not possible. 1) the data is checked in reality => so survey on the ground increases quality with respect to errors. 2) the data is correct at the date of the survey => where it is done it's more up to date than any imported data, but of course only where it is done. 3) When a mapper goes out to add streets and house numbers, it's easy to collect any other stuff where there is no other data source available. post boxes, benches, vending machines, opening hours, surface of the streets and much more stuff that increases quality. In contrast importing data is restricted to the data contained in the data source. >> P.S: Of course this is not meant to deal with the software as such, but >> for the installations/instances "officially" part of OSM. Feel free to >> set up an BANO nominatim server to show the strength of BANO instead. > > In that case remove geonames and TIGER address search from > osm.org Nominatim instance. On osm.org Genonames is a different search result set, distinct from Nominatim, there are two different query results returned. This is a good way to go, and yes, it might an idea to do the same with BANO - but that's not what you proposed: it's not adding the BANO data to Nominatim. regards Peter _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
