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Activity Number:
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305
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Type:
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Topic Contributed
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Date/Time:
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Wednesday, August 14, 2002 : 10:30 AM to 12:20 PM
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Sponsor:
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Section on Survey Research Methods*
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| Abstract - #301287 |
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Title:
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Implied Edit Generation and Error Localization for Ratio and Balancing Edits
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Author(s):
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Maria Garcia*+
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Affiliation(s):
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U.S. Census Bureau
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Address:
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4600 Silver Hill Road, Washington, District of Columbia, 20233-9100, U.S.A.
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Keywords:
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editing ; error localization ; Fellegi-Holt model
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Abstract:
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The US Census Bureau has developed SPEER software that applies the Fellegi-Holt editing method to economic establishment surveys under ratio edit and a limited form of balancing. It is known that more than 99% of economic data only require these basic forms of edits. If implicit edits are available, then Fellegi-Holt methods have the advantage that they determine the minimal number of fields to change (error localize) so that a record satisfies all edits in one pass through the data. In most situations, implicit edits are not generated because the generation requires days-to-months of computation. In some situations when implicit edits are not available Fellegi-Holt systems use pure integer programming methods to solve the error localization problem directly and slowly (1-100 seconds per record). With only a small subset of the needed implicit edits, the current version of SPEER (Draper and Winkler 1997, upwards of 1000 records per second) applies ad hoc heuristics that finds error-localization solutions that are not optimal for as much as five percent of the edit-failing records.
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- The address information is for the authors that have a + after their name.
- Authors who are presenting talks have a * after their name.
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