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Presentation slides for UK Gov Camp 2012
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The
LinkedGov extension
for Google Refine
@danpaulsmith
What is LinkedGov?
A community project aiming to
make public data more usable
@danpaulsmith
CleaningImproving access
EnrichingLinking
@danpaulsmith
Import existing
data(CSV, Excel,
XML)
Cleaning tasks
Question site
data.linkedgov
.org
LinkedGov database
& core components
Data flow
(Data is stored as machine-readable data)
✔✖
What is Google Refine?
“A power tool for working with messy data”
“cleaning it up”,
“ transforming it”,
“extending it”,
“and linking it”
@danpaulsmith
@danpaulsmith
Spreadsheet software
Spreadsheet software Google Refine
Single-cell editing Bulk-editing
Create & input data Use & transform existing data
Document-based Data-based
Allows extensions to be installed
@danpaulsmith
Transposition, multi-valued cells, clustering, faceting, filtering
@danpaulsmith
What does the LinkedGov extension do?
@danpaulsmithImage curtosey of http://download.chip.eu
Typing wizards
@danpaulsmith
Date & time Measurements Geolocations Addresses
Other wizards
@danpaulsmith
Columns to rows Rows to columns Blank values Codes and symbols
@danpaulsmith
@danpaulsmith
Cleaning
@danpaulsmith
Enriching
@danpaulsmith
What a machine understands before
(CSV, TSV, Excel)
@danpaulsmith
number word number word date number number
number word number word date number number
number word number word date number number
number word number word date number number
number word number word date number number
Column
Row
Column Column Column Column Column Column
RowRowRowRow
What a machine understands after
(machine-readable format)
@danpaulsmith
Celsius string kWh Postcode date m3 metres
Celsius String kWh Postcode date m3 metres
Celsius string kWh Postcode date m3 metres
Celsius string kWh Postcode date m3 metres
Celsius string kWh Postcode date m3 metres
PostcodeName Gas/hourTempWater/hourDate Height
BuildingBuilding
BuildingBuildingBuilding
The power of linking
@danpaulsmith
PostcodesLatitude & longitude Dates Measurements
GP Surgery address dataNHS geo data
GP Surgery energy use data
NHS events data
@danpaulsmith
Import existing
data(CSV, Excel,
XML)
Cleaning tasks
Question site
data.linkedgov
.org
LinkedGov database
& core components
Data flow
(Data exists as linked data)
✔✖
Cleaning tasks
@danpaulsmith
@danpaulsmith
Import existing
data(CSV, Excel,
XML)
Cleaning tasks
Question site
data.linkedgov
.org
LinkedGov database
& core components
Data flow
(Data exists as linked data)
✔✖
Question site
@danpaulsmith
@danpaulsmith
Import existing
data(CSV, Excel,
XML)
Cleaning tasks
Question site
data.linkedgov
.org
LinkedGov database
& core components
Data flow
(Data exists as linked data)
✔✖
data.linkedgov.org
@danpaulsmith
Feedback & questions
@danpaulsmith
http://linkedgov.org - Website
http://wiki.linkedgov.org - Wiki
@LinkedGov - Twitter
#linkedgov – IRC (Freenode.net)
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