Hierarchies in Dictionary De

Picard, Olivier; Blondin-Massé, Alexandre; Harnad, Stevan; Marcotte, Odile; Chicoisne, Guillaume et Gargouri, Yassine (2009). « Hierarchies in Dictionary De », dans NIPS 2009 Workshop: Analyzing Networks and Learning With Graphs (23rd Annual Conference on Neural Information Processing Systems: Workshop on Analyzing Networks and Learning With Graphs, Vancouver, BC, Canada, 11-12 décembre 2009), sous la dir. de Airoldi, Edoardo; Leskovec, Jure; Kleinberg, Jon et Tenenbaum, Josh.

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A dictionary defines words in terms of other words. Definitions can tell you the meanings of words you don't know, but only if you know the meanings of the defining words. How many words do you need to know (and which ones) in order to be able to learn all the rest from definitions? We reduced dictionaries to their "grounding kernels" (GKs), about 10% of the dictionary, from which all the other words could be defined. The GK words turned out to have psycholinguistic correlates: they were learned at an earlier age and more concrete than the rest of the dictionary. But one can compress still more: the GK turns out to have internal structure, with a strongly connected "kernel core" (KC) and a surrounding layer, from which a hierarchy of definitional distances can be derived, all the way out to the periphery of the full dictionary. These definitional distances, too, are correlated with psycholinguistic variables (age of acquisition, concreteness, imageability, oral and written frequency) and hence perhaps with the ``mental lexicon" in each of our heads.

Type: Communication, article de congrès ou colloque
Mots-clés ou Sujets: categories, de
Unité d'appartenance: Faculté des sciences > Département d'informatique
Faculté des sciences humaines > Département de psychologie
Instituts > Institut des sciences cognitives (ISC)
Déposé par: Stevan Harnad
Date de dépôt: 26 nov. 2009 16:16
Dernière modification: 01 nov. 2014 02:11
Adresse URL : http://archipel.uqam.ca/id/eprint/2438


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