Recommendations we get from websites about what to buy are often powered by an algorithm known as collaborative filtering. We trace this technology back to one person trying to declutter his inbox.

James Taylor, CEO, Particular Audience, looks at how to harness algorithmic attention so that retailers can ensure product discovery.

Ever since Amazon first deployed its recommendations system based on human curation and best-seller lists across its ecommerce platform two decades ago, product recommendations have been an important ...