@inproceedings{JacksonSingampalli_ASA08,
        AUTHOR  =       "Jackson, P. J. B. and Singampalli, V. D.",
        TITLE   =       "Statistical identification of critical, dependent and redundant articulators",
        BOOKTITLE =	"J.~Acoust.\ Soc.\ Am.",
        VOLUME  =       "123",
        NUMBER  =       "5, Pt.\,2",
        PAGES   =       "3321",
        NOTE	=	"{Presented at Acoustics'08}", 
	ADDRESS =	"Paris",
	MONTH   =       "July",
        YEAR    =       "2008",
        CITE    =       "Jackson and Singampalli (2008)",
	ABSTRACT =	
"An automatic method for identifying critical, dependent and redundant  
roles in speech articulation is presented.  Critical articulators are  
identified using the Kullback-Leibler divergence between phone-specific and 
model pdfs, which are initialised to the grand pdfs for each articulator.  
Model pdfs of critical and dependent articulators, those significantly 
correlated with the critical ones, are updated accordingly for both 1D and 
2D cases, as long as the divergence exceeds the threshold.  Those 
unaffected are termed redundant.  Algorithm performance is evaluated on the 
MOCHA-TIMIT database by comparison with phonetic features.  Results are 
also given for an exhaustive search, and principal component analysis of 
articulatory fleshpoints.  Implications of being able to extract phonetic 
constraints automatically from articulatory recordings are discussed."
}