Instead of explicitly attempting to group low dissimilarities along the diagonal, it attempts to push the high dissimilarity values away from the diagonal. This page was last edited on 22 Januaryat Arnold and Ernest C. Kris Hirst. In recent years, a few of these methods have come under close scrutiny as scientists strive to develop the most accurate dating techniques possible. Obsidian hydration counts begin after a fresh break; the obtained dates may be incorrect if the artifact was broken after the occupation. However, the complexity of the preliminary hierarchical clustering is usually O n3.
Then a class is a group of similar elements that cannot be classified.
An Introduction to Seriation
Baxter also presents a review of statistical methods for seriation and a description of these approaches pp. All criteria detailed above can be used in this situation without modification, but the algorithms to find the optimum differ. Updated March 07,