The <i>Chaîne Opératoire</i> as an Approach to Distinguish between the Ceramic Production of the Viru and the Moche Polities on the North Coast of Peru
Bibliographic record
Abstract
Abstract Ceramics play a central role in the debates around the relationship between the Viru and the Moche. A recent model considers Negative and Moche-decorated ceramics produced by potters affiliated with the elites to be the cultural markers of the Viru and Moche populations, respectively. Due to the similarity of Viru and Moche plain-wares and the presence of Castillo Decorated ceramics in Viru and Moche contexts, this model sees both types of ceramics as domestic traditions, produced by independent potters and sharing a common technique. The research we present here supports this recent model by reconsidering the social and cultural meaning associated with these ceramic types: it uses a novel approach for South America of reconstructing the chaîne opératoire by studying the traces visible on ceramics at a macroscopic and microscopic scale. The study demonstrates how these potters used their own traditions to produce decorated and undecorated ceramics. Furthermore, we found that Castillo Decorated is a type produced only by Viru potters, and we argue that its presence in Moche contexts is evidence of the numerous exchanges maintained by these two populations.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.005 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".