I'm wondering if there are any good resources (papers, books, etc) about the math that tagtime is based on.
Briefly looking through the code, I have a couple questions and I think they could be answered by understanding some of the math behind tagtime:
1) What do you get by having every user of tagtime on the same ping schedule? Does this workout nice mathematically somehow?
2) In cntpings.pl
and when syncing to beeminder, it looks like every ping is given 45 minutes worth of time. Is this correct?
It seems like some days would have much less than 24 hours of activity logged. If you were generating graphs like the site above, wouldn't this throw them off? Is there any solution to this other than smoothing out the graph?
3) I'd like to learn more about the math below which calculates confidence intervals for time per tag. Can you point me to any books/papers/resources? Or even just general concepts?