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From: A federated learning–driven data fusion strategy for the hardenability prediction of gear steel
Figure 4. Parameter optimization of the federated learning strategy and prediction performance of the model with optimal parameters. (A1) Optimization results over 100 global communication rounds for Client 1; (A2) prediction performance of the optimal-parameter model; (A3) histogram of the frequency distribution of predicted values; (B-D) Optimization and prediction results for Clients 2, 3, and 4, respectively. HRC: Rockwell hardness.
