Experimenting Generalized Procrustes Analysis on a corpus of scenes carved on Mesopotamian cylinder seals and encoded in a textual data set

Di Ludovico, Alessandro and Camiz, Sergio (2022) Experimenting Generalized Procrustes Analysis on a corpus of scenes carved on Mesopotamian cylinder seals and encoded in a textual data set. Archeologia e Calcolatori, 33 (2). pp. 13-32. ISSN 1120-6861

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Official URL: http://www.archcalc.cnr.it/journal/id.php?id=1199

Abstract

In a recently published study, a textual dataset encoding a group of scenes depicted on Mesopotamian cylinder seals from the third millennium was submitted to Procrustes Analysis, considering Correspondence Analysis variations due to progressive reductions of the forms involved. The results seemed to indicate that a slight reduction in the number of forms used to describe the raw data would improve the Correspondence Analysis results. Indeed, the actual impact of each reduction on the outcome of the analyses could not be adequately identified if the forms were not considered as elements forming segments, i.e., sub-images of the scenes. In this paper, the results of the same methodology are presented, this time applied to repeated segments within the same dataset, i.e., sequences of textual forms that may describe sub-images of the described scenes. The comparison between the progressive reductions of repeated segments showed relevant differences between small (around 10 of the rarest segments) and large reductions. Indeed, the latter may undermine a consistent interpretation of the different finding sites, yet well represented keeping 90 of segments. Moreover, a reduction performed by hand and not on the frequency of occurrences provided better results.

Item Type: Article
Additional Information: Licensed under CC BY-NC-ND 4.0
Uncontrolled Keywords: Statistics; Classification of archaeological finds
Subjects: 900 Storia, Geografia e discipline ausiliarie > 930 Storia dei mondo antico fino al 499 ca. > 930.1 Archeologia (Classificare qui la Storia fino al 4000 a.C., l'Archeologia preistorica, le opere interdisciplinari sull'Archeologia) > 930.102 Archeologia - Opere miscellanee > 930.1028 Archeologia – Tecniche, metodologie, apparecchi e strumenti (comprende: Archeometria) > 930.10285 Archeologia – Applicazioni informatiche (comprende: tecniche di datazione)
Depositing User: Dott.ssa Paola Moscati
Date Deposited: 29 Jul 2024 13:48
Last Modified: 29 Jul 2024 13:48
URI: http://eprints.bice.rm.cnr.it/id/eprint/23033

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