1. United States Department of Agriculture
National Agricultural Statistics Service
United Nations Commission and Economic Commission for Europe Conference of European Statisticians May 14-16, 2005
A presentation by Jeff Beranek and Bob McEwen for:
UNECE, Ottawa Canada
Slide 1

2. United States Department of Agriculture
National Agricultural Statistics Service
Topic (iv) : New and emerging methods, including automation through machine learning, imputation, evaluation of methods. Improving an Edit and Imputation System for the United States Census of Agriculture
A presentation by Jeff Beranek and Bob McEwen for:
UNECE, Ottawa Canada
Slide 2

3. United States Census of Agriculture 2002:
Slide 3
United States Census of Agriculture 2002:
A Retrospective
Scope and Background
Failures
Successes
Planning for 2007

4. Scope and Background Quinquennial census of all US farms
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

5. Failures Scanning for data capture (OCR) Database model
Slide 5
Failures
Scanning for data capture (OCR)
Database model
Implementation of edit code
Imputation/Donor pool creation and maintenance
Testing

6. Successes National Processing Center Scanning for Image
Slide 6
Successes
National Processing Center
Scanning for Image
DLTs/Authoring System
Data Review System
Analysis System

7. Planning for 2007 No scanning for data capture Change database model
Slide 7
Planning for 2007
No scanning for data capture
Change database model
Increase speed of processing code
Improve imputation methodology and donor pool design/creation
Develop and implement QC/QA processes
Allow adequate development and testing time