geocoding india - talk delivered on 31 jan 2014 at the bangalore goeblr event
DESCRIPTION
Overview of the challenges of geocoding Indian addresses and how we attempt to solve that challenge at nestoria.inTRANSCRIPT
Geocoding IndiaEd FreyfogleLokku Ltd.
@geo_BLR - 31 Jan 2014
We map millions of properties
Across multiple countries
nestoria.in
Launched in 2010
Some of our partners:
What we ask for <listing>
...
<placenames> <building number="35">Napier Court</building> <street>Cropley Street</street> <area>Hackney</area> <town>London</town> <region>Greater London</region> <province>South East England</province> </placenames>
<location>
<latitude>51.532855</latitude>
<longitude>-0.0902938</longitude>
<postcode>N1 7HS</postcode>
</location>
...
</listing>
Meanwhile, in India ...
What we get...
<location>
<coordinate_system>WGS84</coordinate_system><latitude>0.000000</latitude><longitude>0.000000</longitude><placenames> <area>Mansarovar</area> <street>
Parsavanath at Sanganer, near mansarover muhana mandi
</street><town>Jaipur</town>
</placenames>
</location>
...
What we get...
<location> <full_address>
, Porcia, Pordenone
</full_address>
<postcode>33080</postcode>
<country>IT</country>
<coordinate_system>WGS84</coordinate_system>
<latitude></latitude><longitude></longitude><coordinate_confidence unit="m">50</coordinate_confidence>
</location>...
What we get...
<location> <full_address>
, Porcia, Pordenone
</full_address>
<postcode>33080</postcode>
<country>IT</country>
<coordinate_system>WGS84</coordinate_system>
<latitude></latitude><longitude></longitude><coordinate_confidence unit="m">50</coordinate_confidence>
</location>...
AndreisBanniaBarcisCastionsCimolaisCimpelloClautErto e CassoFiume VenetoFrisancoGhiranoOrcenico InferiorePalsePoffabroPorciaPrata di PordenonePuiaRoraipiccolo
What we get...<location> <country>IN</country> <full_address> M.G.RdNr Rly Stn -East Borivali (East) Mumbai Andheri-Dahisar </full_address> <coordinate_system>WGS84</coordinate_system> <latitude>19.23351</latitude> <longitude>72.83678</longitude> <placenames> <province>Maharashtra</province> <region>Mumbai Andheri-Dahisar</region> <town>Mumbai Andheri-Dahisar</town> <area>Borivali (East)</area> <neighbourhood>M.G.RdNr Rly Stn -East</neighbourhood> </placenames></location>
...
What we get...<location> <country>IN</country> <full_address> M.G.RdNr Rly Stn -East Borivali (East) Mumbai Andheri-Dahisar </full_address> <coordinate_system>WGS84</coordinate_system> <latitude>19.23351</latitude> <longitude>72.83678</longitude> <placenames> <province>Maharashtra</province> <region>Mumbai Andheri-Dahisar</region> <town>Mumbai Andheri-Dahisar</town> <area>Borivali (East)</area> <neighbourhood>M.G.RdNr Rly Stn -East</neighbourhood> </placenames></location>
...
What we get...<location> <country>IN</country> <full_address> M.G.RdNr Rly Stn -East Borivali (East) Mumbai Andheri-Dahisar </full_address> <coordinate_system>WGS84</coordinate_system> <latitude>19.23351</latitude> <longitude>72.83678</longitude> <placenames> <province>Maharashtra</province> <region>Mumbai Andheri-Dahisar</region> <town>Mumbai Andheri-Dahisar</town> <area>Borivali (East)</area> <neighbourhood>M.G.RdNr Rly Stn -East</neighbourhood> </placenames></location>
...
What we get...<location> <country>IN</country> <full_address> M.G.RdNr Rly Stn -East Borivali (East) Mumbai Andheri-Dahisar </full_address> <coordinate_system>WGS84</coordinate_system> <latitude>19.23351</latitude> <longitude>72.83678</longitude> <placenames> <province>Maharashtra</province> <region>Mumbai Andheri-Dahisar</region> <town>Mumbai Andheri-Dahisar</town> <area>Borivali (East)</area> <neighbourhood>M.G.RdNr Rly Stn -East</neighbourhood> </placenames></location>
...
What we get...<location> <country>IN</country> <full_address> M.G.RdNr Rly Stn -East Borivali (East) Mumbai Andheri-Dahisar </full_address> <coordinate_system>WGS84</coordinate_system> <latitude>19.23351</latitude> <longitude>72.83678</longitude> <placenames> <province>Maharashtra</province> <region>Mumbai Andheri-Dahisar</region> <town>Mumbai Andheri-Dahisar</town> <area>Borivali (East)</area> <neighbourhood>M.G.RdNr Rly Stn -East</neighbourhood> </placenames></location>
...
What we get...<location> <country>IN</country> <full_address> M.G.RdNr Rly Stn -East Borivali (East) Mumbai Andheri-Dahisar </full_address> <coordinate_system>WGS84</coordinate_system> <latitude>19.23351</latitude> <longitude>72.83678</longitude> <placenames> <province>Maharashtra</province> <region>Mumbai Andheri-Dahisar</region> <town>Mumbai Andheri-Dahisar</town> <area>Borivali (East)</area> <neighbourhood>M.G.RdNr Rly Stn -East</neighbourhood> </placenames></location>
...
is there any hope?
More data
<full_description><![CDATA[ Property Code: RS434487<BR> ]]>
</full_description>
More (useful) data
<full_description>Box situé dans la cour d'un immeuble à VITRY
SUR SEINE, rue Marie Sorin Defresne. Libre de suite Loyer trimestriel: 230 € Contacter Madame GOYARD ...
</full_description>
More (useful) data<full_description>CASA EM CONDOMÍNIO A Venda 5 Dormitórios - Iporanga, Sorocaba - SP. Sobrado em Condomínio com 2 salas, divididas em vários ambientes, cozinha planejada, despensa, lavabo, banheiro social, 5 dormitórios sendo 1 suíte com closet e 1 suíte master, sacada, escritório, área de serviço, piscina, espaço gourmet, quintal e garagem coberta para 4 carros. Acabamento Interno: Salas e escritório com piso porcelanato. Cozinha, banheiro social e suítes com piso cerâmico. Dormitórios com piso laminado de madeira. Salas com teto rebaixado e sanca em gesso, paredes com detalhes em textura. Cozinha planejada com coifa, fogão cooktop, grande mesa central em granito preto, revestimento nas paredes com detalhes em pastilhas, enorme pia com gabinete em granito preto. Banheiro social com revestimento nas paredes, pia em mármore travertino, box em vidro temperado. Escritório amplo com armários, parede com detalhes em textura. Acabamento Externo: Área de serviço com revestimento nas paredes com detalhes em pastilhas. Quintal em piso cerâmico, paredes com detalhes em textura, enorme pia e balcão em granito. Piscina com cascata e piso em torno em pedra mineira. Churrasqueira com paredes e fundo em vidro temperado. Garagem com acesso via portão eletrônico, paredes com detalhes em textura. Jardim em toda sua parte frontal, porta de acesso principal em madeira maciça e fechadura eletrônica, pedra miracema na calçada. Piso cerâmico na entrada do imóvel. Acessórios do Imóvel: Espaço gourmet, piscina, interfone, aquecedor elétrico solar, portão eletrônico e tv a cabo. Acessórios do Condomínio: Lazer: Lago, Pista de Caminhada, Quadra Poliesportiva, Quadra de Tênis, Pista de Skate, Vestiários, Espaço Gourmet com Salão de Festas e Churrasqueira, Sala de ginástica, Salão de jogos, Playground. Segurança: Totalmente murado, portarias com monitoramento de acesso 24hs, cancelas automáticas, cerca elétrica perimetral e ronda 24hs. Infraestrutura da Região: Localizado próximo a Zona Industrial de Sorocaba, possui acesso fácil tanto para a Rod. Castelo Branco, quanto para o Centro de Sorocaba.</full_description>
we can't trust the data
can we still geocode?
Veocoder
any text
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
Veocoder
Veocoder
any text
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
places
area
area
area
Veocoder
hierarchies best place
But other geocoders?
● they expect "good" input
● price is crazy
● they rate limit
Geocoding Task
Where is:
Lotus County, Site: Sy No. 122/2, Solapur Road, Opp.To Gate No-6 Mirc Darewadi,
Ahmednagar., Opp.To Gate No-6m, Ahmednagar
Geocoding Task (using http://www.gisgraphy.com/compare)
Geocoding Task - Veocoder
Geocoding Task - Veocoder
where did the data come from?
OpenStreetMap
http://www.openstreetmap.orgon twitter: @openstreetmap
Open geodata. The whole world. For you to use.
We need your help.
OpenStreetMap
What’s next?
Releasing a public version of our geocoder soon.
We need your feedback.
Thank you, learn more
http://www.nestoria.in find propertyhttp://www.lokku.com our brandshttp://www.github.com/lokku get our code
on twitter:@nestoria, @lokku, @opencagedata, @freyfogle
Questions?
http://www.nestoria.in find propertyhttp://www.lokku.com our brandshttp://www.github.com/lokku get our code
on twitter:@nestoria, @lokku, @opencagedata, @freyfogle
Credit where credit it due
This talk derives heavily from a similar talk presented by my colleague Savio Dimatteo (@darksmo) at the 11 July 2013 #geomob.