https://www.newabdullah.com/tags/recsys/ Recent content in Recsys on Abdullah Al Mamun https://www.newabdullah.com/og-default.png https://www.newabdullah.com/og-default.png Hugo en newabdullah 2025 Sat, 19 Sep 2026 00:00:00 +0000 https://www.newabdullah.com/posts/embeddings-representation-layer-of-ai/ Sat, 19 Sep 2026 00:00:00 +0000 https://www.newabdullah.com/posts/embeddings-representation-layer-of-ai/ What an embedding actually is, every way people build them from matrix factorization and word2vec through two-tower retrieval to LLM-derived vectors, how embedding tables dominate recsys parameters, cosine against dot product against Euclidean, and how vector search really works with HNSW, IVF and product quantization.