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Full-Text Articles in Cognition and Perception
K-Means Clustering With Multiresolution Peak Detection, Guanshan Yu, Leen-Kiat Soh, Alan B. Bond
K-Means Clustering With Multiresolution Peak Detection, Guanshan Yu, Leen-Kiat Soh, Alan B. Bond
Avian Cognition Papers
Clustering is a practical data mining approach of pattern detection. Because of the sensitivity of initial conditions, k-means clustering often suffers from low clustering performance. We present a procedure to refine initial conditions of k-means clustering by analyzing density distributions of a data set before estimating the number of clusters k necessary for the data set, as well as the positions of the initial centroids of the clusters. We demonstrate that this approach indeed improves the accuracy and performance of k-means clustering measured by average intra to interclustering error ratio. This method is applied to the virtual ecology project to …
Actantial Analysis Greimas’S Structural Approach To The Analysis Of Self-Narratives, Yong Wang, Carl W. Roberts
Actantial Analysis Greimas’S Structural Approach To The Analysis Of Self-Narratives, Yong Wang, Carl W. Roberts
Department of Sociology Faculty Scholarship and Creative Works
This paper introduces a formal procedure for analyzing narratives that was developed by the French/Lithuanian structuralist, A. J. Greimas. The focus is on demonstrating the utility of Greimas's ideas for analyzing one aspect of personal narratives: identity-construction. Reconstructing the basic actantial structure from self-narratives is shown to provide cues to power differentials among actants as perceived by the narrator. Distinguishing narrated events along conflict versus communication axes helps the analyst determine whether an experiential or a discursive domain is of primacy for the narrator. Moreover, investigation of communicative outcomes can be used to validate (or invalidate) findings on power relations. …