I am looking for the proper term for a kind of line on a scatter plot that displays recall, precision, and F-measure.
Below there is an example of a plot with the lines in question, from this blog post <http://gromgull.net/blog/2009/06/plotting-precision-and-recall-values/> (for which I thank the unnamed author). You will see that it has precision on the x-axis, recall on the y-axis, and then lines that show the boundaries of regions where the F1 has a particular value corresponding to the values of R and of P on the x- and y-axes.
It's those lines whose name I am looking for. In meteorology they indicate air pressure, and are called isobars. In dialectology, they go on maps, where they mark geographical boundaries between lexical items, and are called isoglosses. Wikipedia has an article on isosurfaces <https://en.wikipedia.org/wiki/Isosurface>, and that might be the right word, but I would not swear to it. Also, if there is a common term in NLP, I would love to use it.
Kevin Cohen -- Kevin Bretonnel Cohen, PhD Director, Biomedical Text Mining Group Computational Bioscience Program, U. Colorado School of Medicine D'Alembert Chair in Natural Language Processing for the Biomedical Domain (Emeritus), LIMSI, CNRS, Université Paris-Saclay 303-916-2417 http://compbio.ucdenver.edu/Hunter_lab/Cohen -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/html Size: 3257 bytes Desc: not available URL: <https://mailman.uib.no/public/corpora/attachments/20210624/11e20bf7/attachment.txt> -------------- next part -------------- A non-text attachment was scrubbed... Name: 3653326007_bd5f1a4a0e_o.png Type: image/png Size: 31482 bytes Desc: not available URL: <https://mailman.uib.no/public/corpora/attachments/20210624/11e20bf7/attachment.png>