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lines changed Original file line number Diff line number Diff line change @@ -44,6 +44,16 @@ overall usage at a given time instance.
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#### Background and Caveats
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+ The original concept for churn is captured in [ this Mana
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+ page] ( https://mana.mozilla.org/wiki/display/FIREFOX/Project%3A+Firefox+Churn+v1.0 ) .
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+ The original derived data-set was created in [ bug
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+ 1198537] ( https://bugzilla.mozilla.org/show_bug.cgi?id=1198537 ) . The first
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+ [ major revision (` v2 ` )] ( https://bugzilla.mozilla.org/show_bug.cgi?id=1389230 ) of
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+ this data-set added attribution, search, and uri counts. The second [ major
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+ revision (` v3 ` )] ( https://bugzilla.mozilla.org/show_bug.cgi?id=1389231 ) included
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+ additional clients through the ` new-profile ` ping and adjusted the collection
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+ window from 10 to 5 days.
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+
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* Each row in this dataset describes a unique segment of users
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- The number of rows is exponential with the number of dimensions
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- New fields should be added sparing to account for data-set size
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