Formula · Our own model
A sigmoid turns an on or off decision into a probability: near the cut-off the output sits around 0.5 instead of flipping on a 0.1 point difference. Tau sets how wide the transition band is.
Our model; the cut-off and width are fixed and inspectable
Our own model
This one is our own model: the formula and its inputs are shown on the page.
Related: the ten domains · all formulas · tools
Where is this formula used?
It is the same entry listed on the method page, used in pages such as the ten domains; the link above shows it in context.
Did you invent this formula?
This one is our own model: the formula and its inputs are shown on the page.