The percolation threshold is a mathematical concept in percolation theory that describes the formation of long-range connectivity in random systems.

(mathematics) A mathematical theory that models a cluster structure in a random graph to describe the spread of phenomena passing through the edges.

Assessment of soil absorption rate.

In statistical mechanics, bootstrap percolation is a percolation process in which a random initial configuration of active cells is selected from a lattice or other space, and then cells with few active neighbors are successively removed from the active set until the system stabilizes.

The clique percolation method is a popular approach for analyzing the overlapping community structure of networks.

In statistical physics, directed percolation refers to a class of models that mimic filtering of fluids through porous materials along a given direction, due to the effect of gravity.