| 词条 | Geo-imputation |
| 释义 |
In data analysis involving geographical locations, geo-imputation or geographical imputation methods are steps taken to replace missing values for exact locations with approximate locations derived from associated data. They assign a reasonable location or geographic based attribute (e.g., census tract) to a person by using both the demographic characteristics of the person and the population characteristics from a larger geographic aggregate area in which the person was geocoded (e.g., postal delivery area or county). For example if a person's census tract was known and no other address information was available then geo-imputation methods could be used to probabilistically assign that person to a smaller geographic area, such as a census block group.[1] See also
Notes and references1. ^{{cite journal|author=Henry, Kevin A., Boscoe, Francis P.,|title=Estimating the accuracy of geographical imputation|journal=International Journal of Health Geographics|year=2008 |volume=7 |issue=3 |doi=10.1186/1476-072X-7-3|pmid=18215308|pages=3|pmc=2266732}}
3 : Geocodes|Geographic information systems|Missing data |
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