Given that minDifferent
defaults to 2,
if activity \(A\) was compared to at least
two other activities, \(B\) and \(C\), then \(A\) is retained.
The rationale is that,
although little may be learned about \(A\),
there may be a transitive relationship,
such as \(B < A < C\), by which the model can infer that \(B < C\).
Therefore, per-activity sample size is less of a concern
when the graph is densely connected.
A young novice asked the wise master, "Why is 11 the default minAny
instead of 10?"
The master answered, "Because 11 is a prime number."