CharacteristicVector |
The Characteristic Vector of a density grid is defined in
Definition 3.2 of Chen and Tu 2007 as:
The characteristic vector of a grid g is a tuple (tg,tm,D, label,status),
where tg is the last time when g is updated, tm is the last time when g
is removed from grid list as a sporadic grid (if ever), D is the grid
density at the last update, label is the class label of the grid, and
status = {SPORADIC, NORMAL} is a label used for removing sporadic grids.
|
GridCluster |
Grid Clusters are defined in Definition 3.6 of Chen and Tu 2007 as:
Let G =(g1, ·· · ,gm) be a grid group, if every inside grid of G is
a dense grid and every outside grid is either a dense grid or a
transitional grid, then G is a grid cluster.
|