https://sites.temple.edu/rtassessment/files/2018/10/MoCA-Instructions-English_7.2.pdf
Give no (0) points for no correct subtractions, 1 point for one correction subtraction, 2 points for two-to-three correct subtractions, and 3 points if the participant successfully makes four or five correct subtractions.
https://cis.temple.edu/~wu/research/publications/Publication_files/ICDE2024_Xu.pdf
Here, the popularity of v1 is higher than v2, and Alice (or Bob) is capable of only caching one video due to the limited storage resources. Considering that high-popularity videos can generate more trading incomes, Alice and Bob generally tend to cache v1 to improve their utilities (i.e., net profits).