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. Author manuscript; available in PMC: 2019 Sep 27.

Published in final edited form as: IEEE Trans Knowl Data Eng. 2018 Jan 17;30(8):1440–1453. doi: 10.1109/TKDE.2018.2794384

Fig. 6. — (a) Convergence versus Privacy, $\hat{w} = \frac{1}{t} \sum_{k = 1}^{t} {\bar{w}}_{k}$ . (b) Regret incurred by using Mini-Batches. (c) The euclidean distance is generated by $\sum_{i = 1}^{m} {‖ w_{t}^{i} - {\bar{w}}_{t} ‖}_{2}$ , where ${\bar{w}}_{t} = \frac{1}{m} \sum_{i = 1}^{m} w_{t}^{i}$ .