Metadata Matters
description
Transcript of Metadata Matters
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1@urbanmapping
Metadata MattersIan WhiteSeptember 5, 2013
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2@urbanmapping
Achtung!NoSQL is no panacea
Big Data isn’t about dataBig Data isn’t newBig Data doesn’t present a Boolean
quandaryWith power comes responsibility- AWS bills- Lady Gaga tweets- Innumeracy (correlation v causation)
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3@urbanmapping
One Person’s Metadata is Another Person’s Data
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4@urbanmapping
Big v Important
BigHeterogeneousRawDistributedStreaming/real
timeSearch for
meaningTime-sensitivePhilosophical
ImportantWell-defined schemaHigh value (not free)Test-drivenRelationalHistoricalEnterprise-focused
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5@urbanmapping
Data Exhaust
Analytics Probes
Social Media Gov2.0
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6@urbanmapping
Platforms
Commoditization of compute and storage
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7@urbanmapping
A Brief History of Metadata
Callimachus Library of Alexandria, Egypt
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8@urbanmapping
A Brief History of Metadata
“Pinakes” (lists)TitleCategoryAuthorAuthor birthplaceFatherWord count
Callimachus
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9@urbanmapping
A Brief History of Metadata
Johan van der Does Johan van der Does
Leiden University, 1595Leiden University, 1595
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@urbanmapping
A Brief History of Metadata
Melville DeweyMelville Dewey
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@urbanmapping
A Brief History of Metadata
Card catalog room, Library of Congress c. 1920
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@urbanmapping
A Brief History of Metadata
Dewey Decimal System goes electronic in 1967
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@urbanmapping
Out with the Old, in with the New
Archiving card catalogs after digitization
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@urbanmapping
Why Can’t We Be Together?
Metadata Data
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@urbanmapping
Exponential Growth in Data
Unprecedented rate of data creation, 1995-today
1876
TaxonomyPinakes
300 BC
Database
1970
Catalog
1595 AD
Vo
lum
e o
f D
ata
Ge
ne
rate
d
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@urbanmapping
Oh, How I’ve Missed You!The reunification of metadata with data
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@urbanmapping
Together At Last!
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@urbanmapping
GIS Remains Unevolved
+ =Melville DeweyMelville Dewey
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@urbanmapping
Enter the Data CuratorPart social scientist, part librarian, part statistician, part RDBMS wiz
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@urbanmapping
DIKW ModelData
Fact, Signal, Symbol
InformationStructural v FunctionalSymbolic v Subjective
KnowledgeProcessedProcedural
Propositional
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@urbanmapping
Popularity Contest
Metadata
Big Data
Data ScienceCuration
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@urbanmapping
c.2013
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@urbanmapping
One Person’s Metadata is Another’s Data