Pattern recognition in speech perception research
Terrance M. Nearey · Canadian acoustics · 2008
The use of more flexible pattern recognition methods in speech perception research was investigated. The logistic regression and methods imported from automatic speech recognition (ASR) technology was included. The APP scores generated by a NAPP model was expressed in the form of a multinomial logistic regression (MNLR). An initial MNLR analysis was conducted and the response factor comprised the 6 response categories. The clustering patterns of consonant responses suggested a factored solution, whereby judgment log-odds were tuned continuously by only the three factors that include closing place, opening place, and gap duration. a reduced logistic model enforcing the decomposition shows RMS error and modal agreement that are nearly indistinguishable from the full CC model.