The Gaussian mechanism is a technique used in differential privacy that adds noise drawn from a Gaussian distribution to the outputs of a function, ensuring that the inclusion or exclusion of a single data point does not significantly affect the result. This method helps to protect individual privacy while still allowing for useful data analysis by masking sensitive information. It plays a crucial role in federated learning and privacy-preserving deep learning by enabling models to learn from decentralized data without compromising user privacy.
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