HANDLING DATA WITH LIMITED APPLICABILITY AREA

摘要

A server is caused to run-length encode grid regions of a grid, to which an applicability area of a set of data has been mapped, to obtain encoded information about the applicability area. The encoded information about the applicability area is caused to be transmitted. An apparatus receives the encoded information about the applicability area, run-length decodes the grid regions based on the encoded information about the applicability area, and evaluates the decoded grid regions when using the set of data.