How does Hot Searches work?

4. How does Hot Searches work?

Hot Searches reflects what people are searching for on Google today. Rather than showing the most popular searches overall, which would always be generic terms like “weather,” Hot Searches highlights searches that experience sudden surges in popularity, and updates that information hourly. Our algorithm analyzes millions of web searches performed on Google and displays those searches that deviate the most from their historic traffic pattern. The algorithm also filters out spam and removes inappropriate material. For each search, Hot Searches shows related searches and a Search Volume Index graph. The page also displays news, blog posts, and web results to give context about why a search may be appearing on the Hot Searches list. You can also choose a date in the past to see what the top Hot Searches were for that date by clicking change date.