<OT> New Posting: ROA-669

[roa at ruccs.rutgers.edu]

ROA 669-0704

Exemplar-based phonology and the time problem: a new representational technique

Robert Kirchner <kirchner at ualberta.ca>

Direct link: http://roa.rutgers.edu/view.php3?roa=669


Abstract:
Exemplar-based approaches to phonology presuppose that each
exemplar can be assigned to a particular point in some fixed-dime
nsional mathematical space, such that it has a measurable
distance from all other exemplars. But the speech signal
is inherently of variable length. A new technique from the
machine learning literature, the string kernel, permits
variable-length signals to be mapped to fixed-dimensional
space, by computing the extent to which they contain the
same (contiguous and non-contiguous) sub-sequences. In this
article, the string kernel technique is applied to a computationa
l implementation of a phonological exemplar-based learning
system (PEBLS).  An experiment is presented, using this
model to test an exemplar-based account of phonologization.

Comments: submitted to LabPhon 9
Keywords: exemplar, string kernels, phonologization
Areas: Phonology,Computation,Phonetics
Type: Conference Proceedings Chapter

Direct link: http://roa.rutgers.edu/view.php3?roa=669