Abstract: A data generating apparatus includes an acquiring unit that acquires text data (name data) related to a name associated with position information; a classifying unit that using the acquired position data, classifies the name data according to given regions; an integrating unit that integrates neighboring regions such that the total data size of the name data included in regions to be integrated does not exceed a predetermined given data size; a storage unit that groups the name data according to integrated regions and stores the grouped name data as a name dictionary to be used in both a facility search process and a map display process; and an extracting unit that from the classified name data, extracts the name data common to regions of a given number or more, where the storage unit groups and stores the common name data as a common name dictionary different from the name dictionary.

Abstract: In a map data recording device (100), a setting section (104) sets a group by combining parcel data so that the total amount of data is within the upper limit value acquired by an upper limit data amount acquiring section (102) or the total number of pieces of data is within the upper limit number of pieces acquired by an upper limit number-of-pieces of data acquiring section (103). A compression section (105) then groups the parcel data for compression and a recording control section (106) records it on a recording section (101). Further, in a map display (110), a reading section (112) reads the parcel data in a group unit from the recording section (101) and extends the parcel data read by an extension section (113). A display control section (114) then controls a display section (111) and selects parcel data included in a display range from the extended parcel data to display it on the display section (111).

Abstract: There is provided an information generation system, an information generation method and so on that generate information to correlate a road image to a branch point and that are capable of clearly recognizing heading direction or the like at the branch point while reducing work for correlating the branch point and image of a road at the branch point and cost required for creating the image.