去年，耶鲁大学的一群物理学家想出了一个叫作时间反演激光器的东西，来实现这个逆过程。

Last year, a group of physicists at Yale University proposed a way to do just that with something called a time-reversed laser.

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脑电逆问题是指利用脑电图(EEG)数据去反演可以反映脑电活动等效偶极子源的参数信息。

Inverse problem of EEG means using EEG data to get the information of equivalent dipole sources that can reflect the activity of EEG.

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混合逆数值算法是一种两步算法，包含直接矩阵反演求逆和二次规划两个步骤。

The Hybrid Inverse numerical method is a two-step numerical method, comprising of direct matrix inversion and quadratic programming.

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