Patent ID: 8898102

Claim:
An apparatus comprising: one or more processors; one or more storage media storing instructions, which, when processed by the one or more processors, cause: computing, based on one or more first values of one or more physical properties for a first set of cells, first values of one or more physical fields at first spatial locations, the first set of cells constituting a grid that represents a spatial domain of exploration, the first values of the one or more physical properties having been obtained from the spatial domain of exploration; transforming the first set of cells into a second set of cells by splitting at least one cell in the first set of cells into two or more new cells; determining values of the one or more physical properties for the two or more new cells based upon the one or more first values of the one or more physical properties for the first set of cells; computing, based on second values of the one or more physical properties for the second set of cells, second values of the one or more physical fields at second spatial locations; and determining whether differences between the second values of the one or more physical fields at the second spatial locations and the first values of the one or more physical fields at the first spatial locations satisfy one or more criteria for further cell splitting of the two or more new cells.