In statistics, a percentile is a term that describes how a score compares to other scores from the same set. While there is no universal definition of percentile, it is commonly expressed as the percentage of values in a set of data scores that fall below a given value, for example the 25th percentile, the ... Read more
A perceptron is a type of algorithm which is utilized by ANNs to solve binary classification problems.
Periodicity is a term used in seasonal forecasting models. It is used to signify the number of observations which comprise a single season.
Perturbation refers to a set of methods for distorting the pixels in an image without compromising the overall information contained within it. These methods can be changing the image's resolution, converting it from color to greyscale, reverting the image dimensions, etc.