Loss Functions

Today is a new day, a day of adventure and mountain climbing! So like the good student you are, you attended today's class but didn't understand:( Luckily, you got me, your personal professor. I asked your classmates about today's class and they told me that the professor taught you about Loss Functions, some even told me that he taught them how to climb down from different mountains. Well, grab your hiking gear and follow my lead, we are going to climb down from a high mountain, higher than Everest itself. Do you remember that the objective of training the neural network is to try to minimize the loss between the predictions and the actual values?