The structure of the index tree decides the average index number to be visited, but even regarding the same index structure, the average visit time is different if the broadcast sequence is different.

索引树的结构决定了平均访问索引节点的数目，但是即使对于相同的索引结构，如果采用不同的广播序列，则平均访问时间也不尽相同。

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This paper introduces a newly generalized and dynamic structure for the similarity retrieval of high dimensional feature vectors called the recursive clustering index tree.

文章提出了一种新的适用于高维特征矢量相似检索动态聚类索引树结构。

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R-tree is a dynamic index tree of space search. Its structure use multi-dimensional region to express spatial data object. R-tree is a valid way to visit rectangle.

树是空间搜索的动态索引树，它的结构是利用多个维中的区间来表示空间数据对象，它是矩形访问的一种有效方法。

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