1 / 12

United States Department of Agriculture National Agricultural Statistics Service

This presentation discusses the shortcomings of the 2002 US Census of Agriculture and the improvements made for the 2007 census. It also highlights areas for further improvement for the 2012 census.

charlotteallen
Download Presentation

United States Department of Agriculture National Agricultural Statistics Service

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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.

More Related