این لینک اصلی مقاله است .
https://medium.com/the-cauldron/just...y-78df9187adc2
در پیوند زیر هم با استفاده از google trend مفهوم average interest over time را تعریف کرده .
https://support.google.com/trends/an...164?hl=en&rd=1
معیار زیر بنایی محاسبات ایشون بر این اساس هست .
This is where the functionality of Google Trends comes into play. A free tool that can be used by anyone, anywhere, to see how many Google searches were conducted on a certain search query,
it’s the ideal way to link the assumption that “most searched” equals “most popular.” Google Trends houses A LOT OF DATA, too — as of December 2014, Google boasted a 75.2 percent search engine market share in the U.S., with Bing (12.5 percent) and Yahoo! (10.4 percent) lagging well behind, respectively.
Worldwide, the gap between Google and its competitors is even wider, meaning Google provides us with an extremely large sample size, spanning all ethnicities, geolocations, and socioeconomic statuses.