1. An information processing device comprising: a candidate attribute area identification portion configured to receive information associated with a cluster of at least one data item, and identify at least one named attribute area for each of the at least one data item; a relatedness assessment portion configured to perform a relatedness assessment between the cluster and each of the at least one named attribute area; and a cluster name generation portion configured to generate a cluster name based on the relatedness assessment, wherein said cluster name includes at least a part of one of the at least one named attribute area.