How do Product Recommendation Engines Work?

The relevance of search results and product recommendations should depend on a visitor's intent, not the accuracy of their words. Therefore, it shouldn't matter whether a visitor uses the words cookies or biscuits to describe what they are looking for – the products displayed to them in search and recommendations should be sweet baked treats regardless. It's by understanding how products relate to one another that a web page can effectively show visitors the full range of relevant products that match their buying intent.