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Many newcomer users incorrectly apply tag 'metric' (defined as a subclass of distances) to questions where word "a metric" is used by them simply as "a coefficient", "a measure".

So please create tag 'metric-distance' and make tag 'metric' a junior synonym of it.

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    $\begingroup$ I might prefer [distance-metric], dunno, but otherwise, absolutely. $\endgroup$ Commented Sep 13, 2021 at 11:30
  • $\begingroup$ Do you mean the $d$ on the metric space $(M, d)$ as opposed to a metric like the AUC of a machine learning model? $\endgroup$
    – Dave
    Commented Sep 14, 2021 at 22:04
  • $\begingroup$ @Dave, yes, our current tag 'metric' is specifically for this, en.m.wikipedia.org/wiki/Metric_(mathematics). A distance satisfying the metricity axioms. $\endgroup$
    – ttnphns
    Commented Sep 15, 2021 at 5:31
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    $\begingroup$ Looking at some of the questions tagged with metric it seems relatively few of them are about metric in the sense intended so it might almost be better to give up and rename it distance. $\endgroup$
    – mdewey
    Commented Sep 21, 2021 at 15:02
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    $\begingroup$ @mdewey: and everybody: I will have a look! $\endgroup$ Commented Sep 23, 2021 at 20:29

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