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| Geo-imputation ： ウィキペディア英語版 |
Geo-imputation
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.
== See also ==
*Geocoding
*Imputation (statistics)
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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