From Lexical and Semantic to Predictive Search: Evolution or Involution?

We cover the evolution of web search from lexical and semantic search to the generative AI-powered chatbots predicting knowledge that are common today. For that we need to deep dive into the technical mechanics of vector models; content, link and usage features; entities; embeddings; large language models; and neural information retrieval, including dense retrieval and retrieval augmented generation (RAG).