Parameter vs Overfit - What's the difference?
parameter | overfit |
(mathematics, physics) A variable kept constant during an experiment, calculation or similar.
(programming) An input variable of a procedure definition, that gets an actual value (argument) at execution time (formal parameter) .
(programming) An actual value given to such a formal parameter (argument or actual parameter) .
A characteristic or feature that distinguishes something from others.
(geometry) In the ellipse and hyperbola, a third proportional to any diameter and its conjugate, or in the parabola, to any abscissa and the corresponding ordinate.
(crystallography) The ratio of the three crystallographic axes which determines the position of any plane.
(crystallography) The fundamental axial ratio for a given species.
(statistics) To use a statistical model that has too many parameters relative to the size of the sample leading to a good fit with the sample data but a poor fit with new data.
As a noun parameter
is a variable kept constant during an experiment, calculation or similar.As a verb overfit is
to use a statistical model that has too many parameters relative to the size of the sample leading to a good fit with the sample data but a poor fit with new data.parameter
English
Alternative forms
* parametreNoun
(en noun)- Roughly, a tuple of arguments could be thought of as a vector, whereas a tuple of parameters''' could be thought of as a covector (i.e., linear functional). When a function is called, a '''parameter tuple becomes "bound" to an argument tuple, allowing the function instance itself to be computed to yield a return value. This would be roughly analogous to applying a covector to a vector (by taking their dot product (or, rather, matrix-product of row vector and column vector)) to obtain a scalar.
- The parameter of the principal axis of a conic section is called the latus rectum.