stem/AI/Neural Networks/RNN/Representation Learning.md

# [Un-Supervised](../../Learning.md#Un-Supervised)

- Auto-encoder FCN
- Learns bottleneck (latent) representation
	- Information rich
	- $f(.)$ is CNN encoding function
![](../../../img/unsup-representation-learning.png)

# [Supervised](../../Learning.md#Supervised)
- Triplet loss
	- Providing positive and negative requires supervision
- Two losses
![](../../../img/sup-representation-learning.png)