He reasoned that the most accurate sequence would be the one where concentrations of certain design styles had the shortest duration across the sequence of papers (Renfrew and Bahn 1996, p. In addition, it is vital that the lifespans of the different design styles overlap. to form groups of objects belonging to the same design style is by no means trivial.Following these rules, an assemblage of objects can be placed into sequence so that sites with the most similar proportions of certain styles are always together (Lock 2003, p. Creating a typology frequently is the basis of a seriation.Of course, these design styles are not eligible for chronological seriation.For example, knives in early medieval times in Europe are said to show no chronological variation.
Robinson based his frequency seriation method on a similarity matrix. 269–281) summarized the state of the art of seriation methods thoroughly, giving detailed descriptions of Kendall's and Robinson's approaches.This is called the arch effect by Hill and Gauch (1980).Both Kendall and Jensen & Høilund Nielsen (1997) created artificial data sets to show that the parabola results in ideal circumstances.In Europe, it has been used frequently to reconstruct the chronological sequence of graves in a cemetery (e.g.
Jørgensen 1992; Two different variants of seriation have been applied: contextual seriation and frequency seriation (Renfrew and Bahn 1996, pp. Whereas contextual seriation is based on the presence or absence of a design style, frequency seriation relies on measuring the proportional abundance or frequency of a design style.In 1971, Kendall proposed the use of multidimensional scaling techniques for seriation problems, and this approach has also been used by some other scientists (see Baxter 2003, pp. Baxter also presents a review of statistical methods for seriation and a description of these approaches (pp. Today, the most popular seriation method both for contextual and frequency problems is based on correspondence analysis. Using this technique, not only the sequence of the objects but also those of the design styles is established.