ISRN UIUCLIS- -1999/3+IRG Further Cautions for the Calculation of Discrimination Values David S. Dubin Graduate School of Library and Information Science University of Illinois at Urbana-Champaign September, 1998 Term discrimination values computed using the cosine measure without first removing stop words produced results consistent with discrimination values com- puted using Euclidean distance. Under these conditions, terms that would or- dinarily be considered poor discriminators are ranked among the best. Systems designers intending to use discrimination value for selecting or weighting docu- ment attributes (especially image, sound, or other non-text attributes) should note the measure’s complexity and sensitivity.