Such as: existing partial minimum, the slow convergence, selecting the number of hidden nodes difficult and so on.

如：训练时易陷入局部极小、收敛速度慢、隐结点个数难以确定等。

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Traditional neural network algorithms are easy to fall into the local minimum, slow convergence when in fault diagnosis.

传统的神经网络算法应用于故障诊断时，具有易陷入局部极小值，收敛速度较慢等缺点。

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Reinforcement learning is an important machine learning method. However, slow convergence has been one of main problem in practice.

强化学习是一种重要的机器学习方法，然而在实际应用中，收敛速度缓慢是其主要不足之一。

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The Five Star Party's avowed opposition to eurozone fiscal convergence might also slow future progress on banking union and other financial reforms.

BBC: Italian voters declare opposition to austerity

However, convergence towards common standards of middleware appears to be slow in the academic world.

ECONOMIST: Computing

As discussed in my previous article convergence of business analytics and location analytics has been a slow process.

FORBES: Esri Continues Focus on Spatial Analytics for Business