发现基本蚁群优化算法存在慢收敛且易停滞等问题。

The ant colony optimization algorithm has found slow convergence and easy to stagnation.

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论述了TCP/IP网络中距离向量（V D）算法中的慢收敛问题，以及一些解决方法的不足。

The thesis describes some solutions for the slow convergence (count to infinite) problem in Vector-Distance algorithm in TCP/IP and points some shortages of them.

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分析了BP算法的基本原理，指出了BP算法具有收敛速度慢、易陷入局部极小点等缺陷以及这些缺陷产生的根源。

Then some defects such as slow convergence rate and getting into local minimum in BP algorithm are pointed out, and the root of the defects is presented.

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