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United States Department of Agriculture National Agricultural Statistics Service

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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United States Department of Agriculture National Agricultural Statistics Service

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  1. 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

  2. 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

  3. Slide 3 • United States Census of Agriculture2007: • Scope and Background • Shortcomings of 2002 Census • Improvements to 2007 Census • Planning for 2012

  4. 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

  5. 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

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

  7. Slide 6 • Responses to 2002 Shortcomings • Database model • Roles of databases optimally redefined.

  8. 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).

  9. Slide 6 • Responses to 2002 Shortcomings • Imputation/Donor pool creation and maintenance • Improved donor pool design and deeper seed pool.

  10. Slide 6 • Responses to 2002 Shortcomings • No quality control/quality assurance utilities • Designed, tested and implemented QC/QA utilities.

  11. Slide 6 • Responses to 2002 Shortcomings • Lack of testing • Aggressive, early testing of components and entire system.

  12. 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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