1. A computer implemented method for visualizing concepts within a collection of information, the method comprising: analyzing, by a computer system, a set of materials from at least one collection of information; defining, by the computer system, an attribute space associated with the set of materials; determining automatically, by the computer system, similarity of members of the attribute space, by determining a measurement of the distinctiveness for the members of the attribute space based on a statistical distribution of at least one identifying characteristic within the respective sets of materials associated with respective members of the attribute space; normalizing, by the computer system, the measurement of distinctiveness by determining an amount by which the measurement of distinctiveness exceeds a mean score for one or more sets of materials of a similar or identical size; and generating, by the computer system, a graphical model of the members of the attribute space, wherein generating the graphical model includes generating a display of the members of the attribute space, each of the members having a respective display distance from other respective members of the attribute space reflective of the determined similarity.