In addition to right truncation, left and simultaneous left and right truncation are available in the Basic Index. 在附加到右边截断,左边和同时的左边和右边截断在基本索引中是可得的。
Study of the Chinese Document Retrieval by Right Truncation Searching 中文后截词文献检索研究
The existing algorithms include equivalent left and right curve angle by definition, normal section line method and tangent projection etc. But all their precisions are limit to one-order truncation error, and make severe accumulate error on discrete models. 有关的算法有根据定义的左右曲面角相等,法截面法和切向投影等。这些方法的精度都局限在一阶截断误差,在离散的网格上有严重的累积误差。