Searching in high - dimensional spaces : index structures for improving the performance of multimedia databases . acm computing surveys , 2001 , 33 : 322 - 373 . 2 guttman a . r - tree : a dynamic index structure for spatial searching 本文试图将高维空间中的每个点对应的两种距离尺度通过线性组合的方式表达成复合距离尺度,从而能够较好地缩小查询空间,提高查询效率。
百科解释
ACM Computing Surveys (CSUR) is a peer reviewed scientific journal published by the Association for Computing Machinery. The journal publishes survey articles and tutorials related to computer science and computing.