Simulated annealing tends to be trapped in local optima, but it also possess powerful fine adjustment ability.

模拟退火算法容易陷入局部最优解，但是具有很强的微调能力。

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For complex functions with high dimensions, general particle swarm optimization methods are slow speed on convergence and easy to be trapped in local optima.

对于高维复杂函数，一般粒子群优化算法收敛速度慢，易早熟收敛。

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Numerical simulation results show that, compared with QDPSO, it is effective, with strong ability to avoid being trapped in local minima and robust to initial value.

数值实验结果表明，与量子粒子群优化算法相比，该算法效率高、优化性能好，具有较强的避免局部极小能力，对初值具有较强的鲁棒性。

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The area is prone to changes in winds and local currents, and ships can quickly become trapped, sometimes for weeks, when the concentration of pack ice increases.

BBC: HMS Protector approaches MS Fram

They've even brought in a loader from the local authority to bring out some of the trapped victims, who were still alive, from under the wreckage.

BBC: Cairo train derailment leaves 19 dead