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 [13] VideoMoCo paper. https://arxiv.org/pdf/2103.05905.pdf.  
 [14] Hyperparameter tuning. https://cloud.google.com/ai-platform/training/docs/hyperparameter-tuning-overview.  
 [15] Overfitting. https://en.wikipedia.org/wiki/Overfitting.  
-[16] Focal loss. https://amaarora.github.io/2020/06/29/FocalLoss.html.  
+[16] Focal loss. https://amaarora.github.io/posts/2020-06-29-FocalLoss.html.  
 [17] Gradient blending in multimodal systems. https://arxiv.org/pdf/1905.12681.pdf.  
 [18] ROC curve vs precision-recall curve. https://machinelearningmastery.com/roc-curves-and-precision-recall-curves-for-classification-in-python/.  
 [19] Introduced bias by human labeling. https://labelyourdata.com/articles/bias-in-machine-learning.