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Phonology Seminar: Bruce Hayes, “Allomorph discovery as a basis for learning alternations”

November 15, 2017 @ 7:30 pm - 10:00 pm

UCLA/USC Joint Phonology Seminar

I describe an implemented system for learning the allomorphs of morphemes. It inputs glossed paradigms and outputs the allomorphs of each morpheme. The system takes the form of a maxent grammar, with constraints preferring minimal alternation and segmental contiguity. Learning the allomorphs first greatly simplifies the learning of underlying forms: string alignment of allomorphs reveals the full set of alternations, which can be used to construct a highly informative candidate set from which the correct UR’s and constraint rankings are readily discovered. To illustrate, I show how the system learns UR’s and rankings for several well-known phonology problems.


November 15, 2017
7:30 pm - 10:00 pm
Event Category:


Hayes/Keating residence; Please contact Bruce if you need directions; bhayes@humnet.ucla.edu