A Distributed Model of the English Past Tense Formation

Steve HowellKeystone College, La Plume, Pennsylvania, USA
Maryellen MacDonaldUniversity of Wisconsin-Madison
Mark SeidenbergUniversity of Wisconsin-Madison

Abstract

We developed a version of the Joanisse and Seidenberg (1999) past-tense model to address two issues: whether the model’s performance depended on the use of localist semantic representations, and the challenges to this account presented by a patient who was impaired in generating irregular past tenses despite apparently intact semantics. The model also demonstrates the frequency by regularity interaction from Patterson et al (2001), and shows that a single-mechanism connectionist model can perform realistically on the past-tense task.

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A Distributed Model of the English Past Tense Formation (162 KB)



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