COMPLEX SEMANTIC NETWORKS

G. M. Teixeira (), M. S. F. Aguiar, C. F. Carvalho, D. R. Dantas, M. V. Cunha, J. H. M. Morais, H. B. B. Pereira () and J. G. V. Miranda ()
Additional contact information
G. M. Teixeira: Centro Federal de Educação Tecnológica da Bahia, Salvador, Bahia, Brazil
M. S. F. Aguiar: Instituto de Física, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil
C. F. Carvalho: Departamento de Psicologia, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil
D. R. Dantas: Departamento de Psicologia, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil
M. V. Cunha: Instituto de Física, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil
J. H. M. Morais: Departamento de Psicologia, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil
H. B. B. Pereira: Programa de Modelagem Computational — SENAI CIMATEC, 41.650-010 Salvador, Bahia, Brazil;
J. G. V. Miranda: Instituto de Física, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil

International Journal of Modern Physics C (IJMPC), 2010, vol. 21, issue 03, 333-347

Abstract: Verbal language is a dynamic mental process. Ideas emerge by means of the selection of words from subjective and individual characteristics throughout the oral discourse. The goal of this work is to characterize the complex network of word associations that emerge from an oral discourse from a discourse topic. Because of that, concepts of associative incidence and fidelity have been elaborated and represented the probability of occurrence of pairs of words in the same sentence in the whole oral discourse. Semantic network of words associations were constructed, where the words are represented as nodes and the edges are created when the incidence-fidelity index between pairs of words exceeds a numerical limit (0.001). Twelve oral discourses were studied. The networks generated from these oral discourses present a typical behavior of complex networks and their indices were calculated and their topologies characterized. The indices of these networks obtained from each incidence-fidelity limit exhibit a critical value in which the semantic network has maximum conceptual information and minimum residual associations. Semantic networks generated by this incidence-fidelity limit depict a pattern of hierarchical classes that represent the different contexts used in the oral discourse.

Keywords: Complex networks; oral discourse; incidence-fidelity index (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (2)

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DOI: 10.1142/S0129183110015142

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