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两套绘图元
原标题:Algorithm for mapping elements between two sets

我有两组病媒,即A组和B组。 我有自己的方法测量任何两种病媒之间的距离。 目标是在B组中向该病媒绘制A的矢量图,其距离在具体门槛值之内。 现在,如果两个病媒之间的距离不在某一门槛值之内,那么这些病媒就没有搭配。 制图是一环,即A组中的一种病媒只能被绘制成B组和反射中的一种病媒。

因此,最后可能发生的情况是,A组中的40个病媒被测绘为B组中的40个病媒,因此,A组中的60个病媒与B组中的任何病媒没有配对。

现在,如果我把A1、A2、A3 ......A100和B1、B2、B3 中的病媒贴上标签,那么,通过两套设备进行这种搭配的最有效方式是什么。

请让我知道,是否需要进一步澄清。

最佳回答

What you need to do is first see which vectors from A can be paired with which vectors in B. This is done with O(n^2) complexity and will create a bipartite graph - you have two partitions of vertices - the vectors in A and the vectors in B and you have an edge if and only if a vector from A can be paired with a vector from B. After you have built the graph, you need to find maximum bipartite matching and this is usually done using a flow. Take a look here for instance. I personally use Dinitz algorithm for the flow.

希望这一帮助。

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