Comments on clay bodies used by two potters in the Port St Johns region of the Eastern Cape Province, South Africa
Bibliographic record
Abstract
This collaborative study has brought together our various backgrounds in art history, ceramics practice, \nchemistry, and clay mineralogy, so as to contextualise properties and ideas about the clay bodies \nused by octogenarian potters Alice Gqa Nongebeza and Debora Nomathamsanqa Ntloya. Nongebeza \nworks from her homestead at Nkonxeni village [31º 37’59.66”S, 29º 23’22.26”E] in the Tombo area, \nand Ntloya is based at Qhaka village [31º36’34.04”S, 29º 24’34.78”E] in the Chaguba area, these sites \nbeing within about 5 kilometres of each other on the R61 road from Mthatha towards Port St Johns. \nWorking separately, these potters have been digging clay from their respective mining sites and making \npots for approximately the past sixty years. In this paper notions about why those specific clays \nwere chosen and why their characteristics are desirable are enframed by comparative chemical analyses \nthereof as well as by a broad overview that places these clays in a wider perspective.
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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 | 0.006 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.008 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.022 | 0.001 |
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".