However, solving the sub-problems is either expensive or impossible. The inexact proximal point algorithm (IPPA) was developed in many literature.

然而精确地解子问题太昂贵有时也不可能，在许多文献里讨论了不精确邻近点算法(IPPA)。

youdao

However, solving the sub-problems is either expensive or impossible. The inexact proximal point algorithm (IPPA) was developed in many literature.

然而精确地解子问题太昂贵有时也不可能，在许多文献里讨论了不精确邻近点算法(IPPA)。

youdao