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Ed Freyfogle's presentation at AGI2007
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Lessons learned while taking a geocentric mashup to being a business
Why should you care?
Web2.0
Why should you care?
Are complex GIS products needed to build a geocommunity?
Numbers:
500,000 UK homes
219,000 unique UK users*
10+ types of geodata
2 countries
8 employees
approx. £5,000 amount spent on GIS
* Comscore July 2007
Challenges:
• geocoding
• understanding user intent
• merging diverse geodata
• internationalisation
• open API
Geocoding:
• free text to longitude, latitude
• 10 Poland Street, W1F 7NJ to 51.512438, -0.133619
• 100,000s transactions/day (10,000/min peak)
• multiple countries
Free Trade Wharf, 340 The Highway, Wapping/Limehouse London
Fountain Road (Flat 2), Edgbaston, UK
15, ASTLEY HOUSE, LONDON
Albert Villas, Gilbert Mews, LEIGHTON BUZZARD, Bedfordshire, LU7 1NF
Lake Lock Drive, Wakefield West Yorkshire
Church Lane, London
UK postcodes
(((^[BEGLMNS][1-9]\d?) | (^W[2-9] ) | ( ^( A[BL] | B[ABDHLNRST] |C[ABFHMORTVW] | D[ADEGHLNTY] | E[HNX] | F[KY] | G[LUY] | H[ADGPRSUX] |I[GMPV] | JE | K[ATWY] | L[ADELNSU] | M[EKL] | N[EGNPRW] | O[LX] |P[AEHLOR] | R[GHM] | S[AEGKL-PRSTWY] | T[ADFNQRSW] | UB | W[ADFNRSV] |YO | ZE ) \d\d?) | (^W1[A-HJKSTUW0-9]) | (( (^WC[1-2]) | (^EC[1-4]) |(^SW1) ) [ABEHMNPRVWXY] ) ) (\s*)? ([0-9][ABD-HJLNP-UW-Z]{2}))
housenumbers
\b(\d+[\-\/]?\d*[\-]?[A-F]*[\-\/]?\w*)\b
• about 800k streets, 350k unique names in UK• 1341x High Street• 1319x Station Road• 1015x Church Street
• 140 abbreviations• Av, Dr, Rd, Sq, Pl, Pk ...
• cleansing, typos, spacing, utf8, house numbers ...
User intent
I want to live “near “ Central London
I want to live “near “ Soho
I want to live “near “ Speyton
‘Waterloo’
• five different Waterloos in the UK
‘Rushton’
• three different Rushtons in the UK
Merging diverse geodata
MP constituencies
no correlation to boroughs/postcodes/anything
Photos of every OS grid
no correlation to boroughs/postcodes/anything
Internationalis(z)ation
Major differences:• base data
RoyalMail vs. Tele Atlas
• character set
• different scales UK postcode is not the same as an ES postcode
• market differences‘The flat is in central Madrid’
Exposing geodata
Google mapplet
Facebook Application
Widgets
Literally cut and paste
Open Formats• GeoRSS
• API You can have our data
• Sharing is good!Yahoo Pipes, Facebook Platform …
Why should you care?
It’s very possible to build a geocommunity without GIS
Is the professional GIScommunity relevant?
Points to consider:• Openness wins
• You can’t compete with free
• Data is becoming a commodity. Rapidly
What to do?• Communicate more
• Free your data
• Engage with innovators, don’t fight them
Questions/Discussion
Other interesting things I haven’t mentioned
• Text analysis/cleansing
• Detecting duplicates
Learn more:http://blog.nestoria.co.uk