Build a News recommendation app from python with Vespa: Part 2

The blog post by Thiago Martins on the Vespa Blog details the process of transforming a news search application into a news recommendation app using embeddings with the Vespa engine. It explains how embeddings are used to represent both users and news articles as vectors, enabling recommendations through an approximate nearest neighbor (ANN) search. The guide covers the setup of user and news schemas with dense tensor fields for embeddings and describes how Vespa's ANN search can be combined with query filters to refine results. The post also includes steps for indexing news embeddings with the HNSW algorithm, deploying the updated application, and using Python functions to query user embeddings and retrieve personalized news recommendations. Additionally, it highlights Vespa's capabilities in integrating ANN search within its query tree, allowing seamless filtering without extra processing steps.