AI Fundamentals
Cosine similarity compares direction while a dot product also keeps magnitude
Compare cosine similarity and dot products with a small vector example, then check how normalisation affects an AI retrieval system.
AI · VISION · EVERYDAY SYSTEMS
embeddings
AI Concepts
Reading Embeddings Without Inventing Names for Every Dimension
Understand an embedding as a learned numerical representation without assuming each coordinate has a tidy human-readable meaning.
Applied AI
Semantic Similarity Does Not Mean Two Sentences Agree
Understand why embedding similarity can retrieve related sentences that disagree, and test negation, numbers and conditions before using a score as evidence.