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Big Data Quality Framework
21/10/2019 United Nations Statistics Division Slide 1
Ronald JansenAssistant Director
Chief of Data Innovation and Capacity BranchUnited Nations Statistics Division
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21/10/2019 United Nations Statistics Division Slide 2
Overview
Big Data Quality FrameworkInputThroughputOutput
Examples
Change Management
Big Data Quality FrameworkCES
UNECE Task Force 1994
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21/10/2019 United Nations Statistics Division Slide 5
SOURCEInstitutional environment
Sustainability of the data providerReliability of data providerTransparency of data provider
Privacy and SecurityLegislationData Keeper vs. Data ProviderRestrictionsPerception
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21/10/2019 United Nations Statistics Division 9
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21/10/2019 United Nations Statistics Division Slide 11
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Examples
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Examples
United Nations Statistics Division 21/10/2019 13
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United Nations Statistics Division 21/10/2019 14
Change ManagementMaking changes – Maintaining quality
ExampleStatistics Canada
Improving Agricultural crop statisticsUse of SurveysUse of Satellite dataJust Month September
Reduce response burdenMaintain quality
ExampleAustralia Bureau of Statistics
Calculating CPIUse of Price SurveysUse of Scanner dataReplace 25% of Basket
Reduce costGain more detailMaintain quality
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United Nations Statistics Division 21/10/2019 15
Change ManagementMaking changes – Maintaining quality
Border SurveysPositives
Controlled sampleTargeted questions
NegativesNon-responseLong processing timeAggregated data
Mobile Phone DataPositives
DetailShort processing time
NegativesSelectivityNo info on purpose
Tourism Statistics
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Thank you
United Nations Statistics Division 21/10/2019 16