Thematic analysis of food discourse from co-occurrence graphs
Abstract
This paper focuses on the thematic analysis of food discourse on mass media when they conduct scientific dissemination. It aims to (i) establish the topics of food discourse; (ii) determine the degree of importance and centrality of topic, (iii) analyze the relationships established among them and (iv) assess the ideological approaches given to these issues. For this purpose, a corpus with 144 news on nutrition published in the most-read Spanish general media has been compiled. From this corpus, an undirected and weighted word co-occurrence graph has been elaborated and its betweenness, degree and modularity have been calculated. These measures have allowed us to identify communities that constitute the different topics and subtopics. It has been concluded that the fundamental focus of food is health, that food is no longer perceived as just food, but as nutrients, and that the main targeted groups are children and women.
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