I think after parsing saints in our books you can just chart the "last time here" and visually come to one or various natural thresholds.
If I were you I'd put the whole table into an extra module which is imported by chatterbot and updated once per week.
The threshold for greetings depends on frequency, at some point people might get annoyed by too many of them.
I'd start with 6 or 12 month and would adjust those settings later.
Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery
In reply to Re^6: Chatterbot update
by LanX
in thread Chatterbot update
by cavac
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