Ranking on Amazon - A9 Masterclass. Here is a quick overview. Ranking on Amazon - A9 Masterclass Part 1 This is our first Masterclass in understanding the A9 algo, where we dive deep into the three main components of product search and provide real-life examples to help you understand how it all works based on the science papers and directly from A9 team member presentations. In the first episode of our series, we break down the Query Category Score, Hunger Score, and In-Category Relevance Score, and explain how they are used by Amazon's Search Relevance Team to determine the best results to show when someone executes a search query and how they combine all three. We provide clear explanations and real-life examples to help you understand how these components work and how you can use this knowledge for your own brand. We also dispel some of the myths surrounding A9 algorithm and provide insights directly from the source. This episode is 13 minutes, watch to the end as you will hear some really interesting stuff on the "Honeymoon" Period.