1. A computer-implemented method for facilitating visualization of input data classifications, the method comprising: obtaining, from a computer system, output data which includes a classification and a score that a corresponding set of input data belongs to one or more classifications; computing an objective function based on the score and the input data; computing a gradient of the objective function based on the input data; and in response to determining that the computed gradient is greater than a predetermined threshold: perturbing the input data in a direction of or opposite to the computed gradient; and transmitting the perturbed input data to the computer system to obtain new output data; and displaying on a device a visualization of whether the input data belongs more or less strongly to a classification.