Table 2 Overview over the size of the used datasets
From: What did you see? A study to measure personalization in Google’s search engine
All | German | Berlin | Berlin regional | |
|---|---|---|---|---|
Data records | 3,707,302 | 3,287,401 | 249,928 | 220,863 |
Users | 1759 | 1597 | 177 | 177 |
Result lists | 315,197 | 276,276 | 20,990 | 20,906 |