space complexity and time complexity

The time complexity and space complexity of the traditional attribute reduction algorithm using discernible matrix are quite big.

传统的利用区分矩阵进行属性约简算法，其时间复杂度和空间复杂度很大。

Time complexity and space complexity in searching binary complementary sequence pair are very huge because four sequences are involved in the calculation.

因为对二元互补序列偶的搜索涉及到四个序列的计算，搜索的时间复杂度和空间复杂度很大。

It is proved that this public key cryptosystem based on compound encryption has not been influenced on time complexity and space complexity, but it has more security t.

实践表明，这种基于复合加密的公钥密码系统，算法的时间复杂度和空间复杂度并未受到影响，但其安全性较早期各同类系统更高、更易被用户采纳。