The document discusses conversion rate optimization using big data and data science. It outlines opportunities to optimize conversion rates through user path analysis, A/B testing with big data, and data science. The solution framework involves collecting full session-level big data from the browser and web server, storing it in a big data framework, and analyzing it with data science techniques to deliver real-time, customized recommendations. The goal is to maximize expected revenue by quantifying the appeal, sell-ability, content value, and expected value of inventory.