The 0/0 problem in the Fuzzy-Logical Model of Perception

Jean-Luc Schwartz (1)

1 ICP - Institut de la communication parlée

The “Fuzzy-Logical Model of Perception” (FLMP) has often been questioned for its presumed ability to fit any data, but no clear-cut evidence has been presented yet. This paper demonstrates the ability of the FLMP to fit random data in the “McGurk region”, that is in conditions involving conflicting stimuli. This is due to the so-called “0/0 problem”, consisting in the fact that any audio-visual response can be fitted by the FLMP if the audio and visual stimuli provide at least one null probability in each possible category. The consequence is a high instability of the Root Mean Square Error RMSE in the region of the best fit.

Domaines: Informatique

Jean-Luc Schwartz. The 0/0 problem in the Fuzzy-Logical Model of Perception. Journal of the Acoustical Society of America, 2006, 120 (4), pp.1795-1798. ⟨hal-00186565⟩