Building a Multi-Stage Recommendation System (Part 1.1)

Understanding candidate generation and the two-tower model

Introduction

In this blog post, we will first discover why multi-step recommendation should be the go-to strategy for companies with large item catalogs. Then we will move on to describe one of the famous latest architecture for candidate generation, namely the two tower architecture. In the subsequent post, we will also implement this model and apply it using the H&M Kaggle competition dataset.