Interactive Decision Maps

The IDM technique applies fast on-line display of bi-objective slices of the EPH approximated in advance.

Computer networks are able to bring, for example, Java applets that display graphs of the Pareto fronts on request.

[1] The above figure represents a gray scale copy of a color computer display for a real-life water quality problem[1] involving five objectives.

However, the most effective form of displaying information to the DM is based on an automatic movement of the slider, that is, on a gradual increment (or decrement) in the constraint imposed on the value of an objective.

[1] A large number of bi-objective slices of such approximations can be computed and displayed in the form of a decision map in several seconds.

Application of these methods results in decision maps that look fairly understandable if the number of approximating points is sufficiently large.

Decision maps help the user to identify the goal directly at a tradeoff curve drawn at the computer display.