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United Nations Commission and Economic Commission for Europe Conference of European Statisticians April 21-23, 2008. United States Department of Agriculture National Agricultural Statistics Service. A presentation by Dale Atkinson and Jeff Beranek for: UNECE, Vienna, Austria. Slide 1.

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slide1

United Nations Commission and Economic Commission for EuropeConference of European StatisticiansApril 21-23, 2008

United States Department of Agriculture

National Agricultural Statistics Service

A presentation by Dale Atkinson and Jeff Beranek for:

UNECE, Vienna, Austria

Slide 1

slide2

Topic (vi) : Censuses.Further Improvements to an Edit and Imputation System for the 2007 United States Census of Agriculture

United States Department of Agriculture

National Agricultural Statistics Service

A presentation by Dale Atkinson and Jeff Beranek for:

UNECE, Vienna, Austria

Slide 2

slide3

Slide 3

  • United States Census of Agriculture2007:
  • Scope and Background
  • Shortcomings of 2002 Census
  • Improvements to 2007 Census
  • Planning for 2012
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Slide 4

  • Scope and Background
  • Quinquennial census of all US farms
  • Responsibility of BOC through 1997; USDA/NASS since 1997
  • NASS implemented sweeping changes in 2002
  • Shortcomings in 2002 Census addressed for 2007 effort
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Slide 5

  • Shortcomings of 2002
  • Scanning for data capture (OCR)
  • Database model
  • Slow speed/small edit batch size (75 records)
  • Imputation/Donor pool creation and maintenance
  • No quality control/quality assurance utilities
  • Lack of testing
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Slide 6

  • Responses to 2002 Shortcomings
  • Scanning for data capture (OCR) introduced much erroneous data.
  • Key From Image (KFI) and Optical Mark Recognition (OMR).
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Slide 6

  • Responses to 2002 Shortcomings
  • Database model
  • Roles of databases optimally redefined.
slide8

Slide 6

  • Responses to 2002 Shortcomings
  • Slow speed/small edit batch size (75 records)
  • Faster edit (5-10 seconds/record), larger batch size (1000 records).
slide9

Slide 6

  • Responses to 2002 Shortcomings
  • Imputation/Donor pool creation and maintenance
  • Improved donor pool design and deeper seed pool.
slide10

Slide 6

  • Responses to 2002 Shortcomings
  • No quality control/quality assurance utilities
  • Designed, tested and implemented QC/QA utilities.
slide11

Slide 6

  • Responses to 2002 Shortcomings
  • Lack of testing
  • Aggressive, early testing of components and entire system.
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Slide 7

  • Areas of Research for 2012
  • Data transfer between databases.
  • Donor imputation and donor pool seeding/weighting of donor records.
  • Editing of demographic and economic data.
  • Shortcomings of 2007 form(s).
  • Further implementation of selective editing.
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