Mutual Disambiguation Measure
nMutual Disambiguation dependent measure was developed
nRate of mutual disambiguation per subject (MDj)
nPercentage of all scorable integrated commands (Nj) in which the rank of the correct lexical choice on the multimodal n-best lists (RiMM) was lower than the average rank of the correct lexical choice on the speech and gesture n-best lists (Ris and Rig), minus the number of commands in which the rank of the correct choice was higher on the multimodal n-best list than its average rand on the speech and gesture n-best lists: