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Paper at a Glance

Cognitive Linguistics and Connectionist
Models of Language Acquisition
Kenneth Smith
Masters Dissertation
Centre for Cognitive Science
Contents

1 Introduction 4 2 Harris's model: learning the senses of over 8 2.1 The training data . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 The neural network . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.3 Harris's Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.1 Trajector size and shape . . . . . . . . . . . . . . . . . . . 16 2.3.2 Landmark size and shape . . . . . . . . . . . . . . . . . . 17 2.3.3 Contact and upward movement . . . . . . . . . . . . . . . 17 2.4 Conclusions from Harris (1989,1990) . . . . . . . . . . . . . . . . 18 3 Replication of Harris's model 20 3.1 The training data . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.2 The neural network . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.3 Categorisation at the hidden layer . . . . . . . . . . . . . . . . . 22 3.3.1 Trajector hidden units . . . . . . . . . . . . . . . . . . . . 22 3.3.2 Verb hidden units . . . . . . . . . . . . . . . . . . . . . . 28 3.3.3 Landmark hidden units . . . . . . . . . . . . . . . . . . . 31 3.4 Generalisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.5 The nature of lexical semantics and semantic rules . . . . . . . . 36 4 Allen's model: acquisition of syntax 38 4.1 The training set . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.2 The neural network . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4.3 Allen's results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 4.4 Allen's conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 44 5 Replication of Allen's model 45 5.1 The training data . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 5.2 The neural network . . . . . . . . . . . . . . . . . . . . . . . . . . 50 5.3 Successes and failures of generalisation . . . . . . . . . . . . . . . 53 5.4 ...

@mastersthesis{smith99cognitiveLinguistics,
  author={Kenny Smith},
  title={Cognitive linguistics and connectionist models of language acquisition},
  year={1999},
  school={Department of Linguistics, University of Edinburgh},
  url={http://www.isrl.uiuc.edu/~amag/langev/paper/smith99cognitiveLinguistics.html}
}

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