If the address data is incomplete, the Postal Matcher can fill in relevant information from the rest of the geographic level and postal code data. For example, an input address data may be missing the Level 1 geographic level value. Assuming that the rest of the geographic data in combination are unique within the national addressing system, the Postal Matcher can fill in the correct Level 1 value.
- Example 1 - Missing Level 1
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Input: __ __ __大连市 中山区 解放路 1号 116001
Fixed: 辽宁省 大连市 中山区 解放路 1号 116001
In this case, since there is only one combination of '辽宁省 大连市' within China, the Postal Matcher can fill in the Level 1 value.
- Example 2 - Missing Level 2
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Input: 辽宁省 __ __ __中山区 解放路 1号 116001
Fixed: 辽宁省 大连市 中山区 解放路 1号 116001
In this case, since there is only one '中山区' within '辽宁省' and that being '大连市', the Postal Matcher is able to fill in the Level 2 value.
- Example 3 - Missing Level 3
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Input: 辽宁省 大连市 __ __ __ 解放路 1号 116001
Fixed: 辽宁省 大连市 中山区 解放路 1号 116001
In this case, although there can be many possible Level 3 values within '辽宁省 大连市', the postal code gives the Postal Matcher enough information to fill in '中山区' as the Level 3 value.
Note: If the postal code information were not specified, the Postal Matcher would not be able to fill in the Level 3 value.
- Example 4 - Missing Level 4
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In general, missing Level 4 values cannot be filled in, because these values refer to `large-scale delivery sites' or `apartment buildings' or `business buildings'. Only a limited number of these buildings are catalogued by the national postal authority and thus cannot be verified with precision.
- Example 5 - Missing Postcode
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Input:辽宁省 大连市 中山区 解放路 1号 ______
Fixed: 辽宁省 大连市 中山区 解放路 1号 116001
- Example 6 - Multiple Missing Elements
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The Postal Matcher can also fill in more than one missing address element when it is logically feasible.
Multiple Elements Missing Fill In? 辽宁省 __ __ 中山区 解放路 1号 ______ Yes __ __ __ __ 中山区 解放路 1号 116001 Yes __ __ 大连市 __ __ 解放路 1号 116001 Yes 辽宁省 __ __ __ __ 解放路 1号 ______ No