However, since these approaches take no account of complexity control and have no guarantee of global minimum, they often suffer from unstable performance.

但是由于这些方法不考虑复杂度的控制以及不能保证全局最小值，所以它们的性能不稳定。

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In Step 7, with the complexity of distributed control of IT mastered, with a clear understanding of how IT serves the business, the CIO can start exercising leadership.

FORBES: Eight Steps For Addressing the IT Management Crisis

Even with ADS-B, jets will be restricted to narrow lanes to reduce the complexity of air traffic control.

FORBES: Technology

Control without complexity rarely lasts very long.

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