中学校理科教科書でつかわれる語句がつくる複雑ネットワーク

概要

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Within the frameword of complex network theory, we investigate the nature of the network composed of words which appear in textbooks of natural science used by students of junior high school. To compare the properties, the network composed of words in textbooks of social science is also analyzed. In both networks, the average distance between words is about 3.0, and the degree distribution follows a power law with slope about -2.0. We conclude that the two networks are small worlds with the scale free property. The words considered as hubs of the scale free networks correspond to kernel words which are used to explain higher level of concepts. The cluster coefficient of the networks and the degree dependence indicate that the correlation between words in the textbooks of natural science is stronger than that in the textbooks of social science.
滋賀大学の論文