GDL

Journal from gdlhub / 2017-08-14 14:13:15
Oleh : Claudia Marzi, Marcello Ferro, Ouafae Nahli, King Saud University
Dibuat : 2017-04-14, dengan 1 file

Keyword : Non-concatenative morphological structureWord recoding and processingLexical storage and accessTopological alignmentSynchronisationSelf-Organising Maps
Url : http://www.sciencedirect.com/science/article/pii/S1319157816301148
Sumber pengambilan dokumen : web

Aim of the present study is to model the human mental lexicon, by focussing on storage and processing dynamics, as lexical organisation relies on the process of input recoding and adaptive strategies for long-term memory organisation. A fundamental issue in word processing is represented by the emergence of the morphological organisation level in the lexicon, based on paradigmatic relations between fully-stored word forms. Morphology induction can be defined as the task of perceiving and identifying morphological formatives within morphologically complex word forms, as a function of the dynamic interaction between lexical representations and distribution and degrees of regularity in lexical data.


In the computational framework we propose here (TSOMs), based on Self-Organising Maps with Hebbian connections defined over a temporal layer, the identification/perception of surface morphological relations involves the alignment of recoded representations of morphologically-related input words. Facing a non-concatenative morphology such as the Arabic inflectional system prompts a reappraisal of morphology induction through adaptive organisation strategies, which affect both lexical representations and long-term storage.


We will show how a strongly adaptive self-organisation during training is conducive to emergent relations between word forms, which are concurrently, redundantly and competitively stored in human mental lexicon, and to generalising knowledge of stored words to unknown forms

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