1. An apparatus for displaying a result of analogous image retrieval, comprising: a server, communicatively coupled to a plurality of cameras and a retrieval terminal, configured to execute computer-executable components, comprising: a person characteristic database that stores person characteristic data extracted from a plurality of cameras; a retrieval request receiving section that receives, as a retrieval key, an identifier for identifying a person to be retrieved; a characteristic retrieval section that retrieves as retrieval results one or more persons from the person characteristic database matching the retrieval key in a descending order of similarity to the retrieval key, the retrieval results corresponding to characteristic data extracted from the plurality of cameras; a retrieval result grouping section that: divides the retrieval results on a per-camera basis; calculates evaluation values for each of the plurality of cameras; compares the evaluation values for each of the plurality of cameras; divides cameras with similar evaluation values into groups; and further classifies the retrieval results divided on a per-camera basis into units corresponding to the groups of cameras with similar evaluation values; and a retrieval result display section that displays the retrieval results according to the units determined by the retrieval result grouping section.