The amount of time needed can be evaluated for different accuracy levels e.g., 0.75 and 0.95.
with 75% accuracy we classify: • 100 (∼20%) Republican users in 3.6 hours and Democratic users in 2.2 hours for G cand ; • 100 (∼56%) R users in 20 weeks and 100 (∼52%) D users in 8.9 weeks for G ZLR which is 800 times longer that for G cand ; • 100 (∼75%) R users in 12 weeks and 80 (∼60%) D users in 19 weeks for G geo .