GPD

GPD is an acronym with several distinct meanings. In statistics, GPD stands for the generalized Pareto distribution, a family of continuous distributions used in extreme value theory to model exceedances over a high threshold. It is defined by a shape parameter xi and a scale parameter sigma, with the threshold u determining the excess variable Y = X − u. The cumulative distribution function is F(y) = 1 − [1 + xi y / sigma]^(−1/xi) for xi ≠ 0 and y ≥ 0; when xi = 0 the distribution reduces to an exponential with F(y) = 1 − exp(−y / sigma). The shape parameter xi governs tail heaviness and the fit to extreme data.

GPD also refers to GamePad Digital, a Chinese electronics company known for designing and manufacturing handheld gaming devices and compact Windows-based computers. The company has produced products such as the GPD Win and GPD Pocket series, which are designed to enable portable PC gaming or computing. These devices typically emphasize a compact form factor, integrated controls or keyboards, and support for Windows or Linux environments, appealing to hobbyists, developers, and enthusiasts.

In context, GPD most commonly denotes either the generalized Pareto distribution in statistical literature or the GamePad Digital company in technology and hardware discussions. The intended meaning depends on the surrounding subject matter.