而模式匹配是数据集成领域中一个基本的问题，它主要考虑全局模式和局部模式之间的匹配。
Schema matching is a basic problem in the field of data integration, the main aspect of it concerns a match between global schema and local schema.
当匹配上的局部模式足够多且其空间关系正确时，目标即得到识别。
An object is recognized only when there are enough Numbers of local patterns is matched and the space relations between these local patterns are correct.
当匹配上的局部模式足够多且其空间关系正确时，目标即得到识别。
An object is recognized only when there are enough Numbers of local patterns is matched and the space relations between these local patterns are correct.
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