DKDivyajot Kaurinai-beginners-journey.hashnode.dev·2d ago · 5 min readPart 20: What are Activation Functions ?Imagine you're standing in a crowded railway station. There are hundreds of sounds around you, but when someone calls your name, you immediately pay attention. Your brain doesn't treat every signal eq00
DKDivyajot Kaurinai-beginners-journey.hashnode.dev·Aug 21 · 4 min readPart 19: Neural Networks: How Machines Learn to Make Decisions Imagine you are looking at a picture of a cat. You can instantly recognize it because your brain processes many things at once—its ears, eyes, fur, shape, and overall appearance. But how can a compute00
DKDivyajot Kaurinai-beginners-journey.hashnode.dev·Aug 15 · 5 min readPart 18: What is Deep LearningImagine teaching a child to recognize a cat. You don't give the child a list of rules like: “A cat has two ears, four legs, whiskers, and a tail.” Instead, you show the child hundreds of pictures of c00
DKDivyajot Kaurinai-beginners-journey.hashnode.dev·Aug 6 · 6 min readPart 17: Principal Component Analysis (PCA): Simplifying Complex Data Imagine you're taking a trip and your phone has hundreds of photos from different places. Looking through every single photo to understand your trip would take a lot of time. Instead, you might select00
DKDivyajot Kaurinai-beginners-journey.hashnode.dev·Jul 31 · 5 min readPart 16: Hierarchical Clustering: How Data Forms a Tree of GroupsImagine you're organizing a family reunion. At first, everyone is together in one big group. Then you notice that some people are siblings, some are cousins, and some belong to different branches of t00
