i am trying to pelicia with qgis and try to dig data will update you once i get some results
On Sun, 19 Apr, 2020, 11:06 am Nikhil VJ, <nikhil...@gmail.com> wrote: > Hi Deepak, > > I was digging up regarding this recently and tried one option that didn't > work out; sharing my notes: > > Starting rule : Cannot rely on 3rd party service; needs to be self-hosted; > use OSM country extract from https://download.geofabrik.de/ as base data. > > Starting point: > > OSM wiki page listing several different software for searching places: > > https://wiki.openstreetmap.org/wiki/Search_engines > > > Osmnames + Sphinxsearch : > > This seemed easier to start off so tried it. Once I got it depoyed, didn't > get any proper results even for city names. I'm guessing the parameters may > require fine-tuning. And I couldn't understand why they are involving > wikipedia. It seemed like the search was relying more on data from > wikipedia than from OSM. > > Didn't explore on it further. (Spare time burned up!) > > > Nominatim related leads, where I want to dig into in next sprint: > > https://www.cascadia-analytics.com/2017/10/01/nominatim-docker.html > > https://github.com/mediagis/nominatim-docker > > > Pelias seems promising too, but we need a proper elasticsearch deployment > to run it and that takes up quite some memory. > > > ----- > > > My personal observations, may be inaccurate: > > We should treat geocoding and reverse geocoding as two different > applications. > > > Reverse geocoding would be much simpler to do, since you just need to put > in the lat-longs and cough up the closest place names. > > > Geocoding involves complicated textual search, especially given the > variations in ways place names are stored. There has to be high flexibility > like making up for spelling differences. So elasticsearch seems like a good > fit for it. Then, geo-constraining searches is very important here. We need > ways to progressively narrow down the search areas and cut out false > positives. Letting the user draw a box on the map to search in, for > example, can greatly increase effectiveness of results rather than > searching the whole country / planet data. > > -- > Cheers, > Nikhil VJ > https://nikhilvj.co.in > > > On Sun, Apr 19, 2020 at 8:26 AM Bhanu K <talk2k...@gmail.com> wrote: > >> Hi Deepak, >> >> Few options depending on the tool: >> >> - if Google Sheets is an option, Geocode by Awesome Table >> <https://gsuite.google.com/u/0/marketplace/app/geocode_by_awesome_table/904124517349?hl=en&pann=sheets_addon_widget> >> is a good add-on. >> - if Microsoft Excel is an option, geocode-excel >> <https://github.com/gramener/geocode-excel> is an offline version. >> - Nominatim API >> <https://nominatim.org/release-docs/develop/api/Overview/> can be used >> in a language of your choice. >> >> thanks, >> Bhanu >> >> >> On Sat, Apr 18, 2020 at 5:00 PM Deepak Sharda <deepsha...@gmail.com> >> wrote: >> >>> i googled and get this site address which is open source of geocoding >>> and reverse geocoding but i am not expert in node.js could you help . >>> >>> >>> is it helpful for data relating to india. >>> >>> >>> there was a file aattached as sample data for india >>> >>> https://github.com/pelias/pelias >>> >>> -- >>> Datameet is a community of Data Science enthusiasts in India. Know more >>> about us by visiting http://datameet.org >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "datameet" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to datameet+unsubscr...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/datameet/a672e807-c8dd-4dba-8d79-f407aa076cb1%40googlegroups.com >>> <https://groups.google.com/d/msgid/datameet/a672e807-c8dd-4dba-8d79-f407aa076cb1%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> >> >> -- >> Bhanu >> >> -- >> Datameet is a community of Data Science enthusiasts in India. Know more >> about us by visiting http://datameet.org >> --- >> You received this message because you are subscribed to the Google Groups >> "datameet" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to datameet+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/datameet/CADbFdW4_1DrFTrQvpTdBuBmW2KMmm3Kxr8D84nmKK9Viwt6fmg%40mail.gmail.com >> <https://groups.google.com/d/msgid/datameet/CADbFdW4_1DrFTrQvpTdBuBmW2KMmm3Kxr8D84nmKK9Viwt6fmg%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > Datameet is a community of Data Science enthusiasts in India. 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