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@@ -148,3 +148,5 @@ Neural Computation, 4(1):131–139, 1992.
 **[49]** Luca Bertinetto, Joao F. Henriques, Philip Torr and Andrea Vedaldi. **Meta-learning with differentiable closed-form solvers** arXiv preprint arXiv:1805.08136 (2018).
 
 **[50]** Yoonho Lee, Seungjin Choi. **Gradient-Based Meta-Learning with Learned Layerwise Metric and Subspace.** ICML 2018.
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+**[51]** Shipeng Wang, Jian Sun, Zongben Xu. **HyperAdam: A Learnable Task-Adaptive Adam for Network Training.** AAAI 2019.