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The semantic analysis of a word, a sentence or a text, consists in
determining its meaning. The notion of meaning is nevertheless
ambiguous and can only be precisely defined with respect to a given
formalism that is called semantic representation. The current
chapter aims at presenting the formalisms developed and used by
Japanese laboratories.
Two main families of semantic representations can be observed:
- structured organizations of semantic units, called concepts,
usually with the help of graphs;
- non-sorted series of concepts that define a high-dimension
vectorial space whose vectors are meanings. This representation
enables simple tools of Euclidean geometry to be used, e.g.
innerproduct or projections.
Jean-Philippe Vert
Sun Dec 6 11:05:42 MET 1998