Different-period spatial entity hierarchical matching method and system based on multi-source information

The invention relates to a different-period spatial entity hierarchical matching method and system based on multi-source information, and belongs to the technical field of data processing. The method comprises the following steps: firstly, judging whether a reference entity and a target entity satisfy attribute matching or not; if the reference entity and the target entity satisfy the attribute matching, showing that the target entity is a matching entity, and otherwise, carrying out geometric matching to the target entity to judge whether the target entity satisfies geometric matching or not; if the target entity satisfies the geometric matching, showing that the target entity is the matching entity, and otherwise, carrying out topological matching to the target entity; and if the target entity satisfies the topological matching, showing that the target entity is the matching entity. Through the above three levels of judgment, different-period spatial entity hierarchical matching can be realized. Meanwhile, in order to improve matching efficiency, an index is established for a target data set to be matched before formal matching. Through the above scheme, the quick and efficiency matching of different-period land use data spatial entities can be realized, and reliable technical support is provided for the uniformization processing, the change retrospect and statistic analysis as well as trend prediction and analogy of land use data.