Long-term resilience of cultivation systems in Tigrai (Ethiopia): an integrated approach combining archaeobotany, ethnoarchaeology and ecological modelling
Bibliographic record
Abstract
This repository contains the PhD thesis entitled: "Long-term resilience of cultivation systems in Tigrai (Ethiopia): an integrated approach combining archaeobotany, ethnoarchaeology and ecological modelling". The present dissertation is proposed as a thesis by articles, which are included throughout the text as specific sections of the dissertation in order to articulate and organise them within the broader context of the thesis. The publications include: Ruiz-Giralt, A., Beldados, A. 2024. The development of agricultural systems in the Ethiopian highlands (NE Africa): a review of the archaeobotanical evidence. Azania: Archaeological Research in Africa. https://doi.org/10.1080/0067270X.2024.2316518 D’Andrea, C., Welton, L., Manzo, A., Woldekiros, H., Brandt, S., Beldados, A., Peterson, E., Nixon-Darcus, L., Gaudiello, M., Wood, S. Mekonnen, H., Batiuk, S., Meresa, Y., Ruiz-Giralt, A., Lancelotti, C. Mengistu, A., Johnson, L. 2023. The Pre-Aksumite Period: Indigenous Origins and Development in the Horn of Africa. Azania: Archaeological Research in Africa 58(3): 329-392. https://doi.org/10.1080/0067270X.2023.2236484 Ruiz-Giralt, A., Bouchaud, C., Salavert, A., D’Andrea, C., Lancelotti, C. 2021. Human-Woodland interactions during the Pre-Aksumite and Aksumite periods in NE Tigray, Ethiopia: insights from the wood charcoal analyses of Mezber and Ona Adi. Vegetation History and Archaeobotany 30: 713–728. https://doi.org/10.1007/s00334-021-00825-2 Ruiz-Giralt, A., Nixon-Darcus, L., D’Andrea, C., Meresa, Y., Biagetti, S., Lancelotti, C. 2024. On the verge of domestication: early use of C4 plants in the Horn of Africa. PNAS 120(27): e2300166120. https://doi.org/10.1073/pnas.2300166120 Beldados, A., Ruiz-Giralt, A., Lancelotti, C., Meresa, Y., D’Andrea C. 2023. Pre-Aksumite Plant Husbandry in the Horn of Africa. Vegetation History and Archaeobotany 32: 635–654. https://doi.org/10.1007/s00334-023-00949-7 Meresa, Y., Ruiz-Giralt, A., Beldados, A., Lancelotti, C., D’Andrea, C. 2024. Pre-Aksumite and Aksumite agricultural economy at Ona Adi, Tigrai (Ethiopia): first look at a 1000 year-history. African Archaeological Review. https://doi.org/10.1007/s10437-024-09574-9 Biagetti, S., Ruiz-Giralt, A., Madella, M., Khalid Magroub, M., Meresa, Y., Haile Gebreselassie, M., Vesaar, G.M., Alam Abro, T., Chandio, A., Lancelotti, C. 2022. No rain no grain? Ethnoarchaeology of sorghum and millets cultivation in drylands. Ethnoarchaeology 13(1-2): 80–104. https://doi.org/10.1080/19442890.2022.2059994 Beldados, A., Ruiz-Giralt, A. 2023. Burning questions: experiments on the effects of charring on domestic and wild sorghum. Journal of Archaeological Science: Reports 51: 104170. https://doi.org/10.1016/j.jasrep.2023.104170 Ruiz-Giralt, A., Biagetti, S., Madella, M., Lancelotti, C. 2023. Small-scale farming in drylands: new models for resilient practices of millet and sorghum cultivation. PLOS ONE 18(2): e0268120. https://doi.org/10.1371/journal.pone.0268120 Ruiz-Giralt, A., Beldados, A., Biagetti, S., D’Agostini, F., D’Andrea, C., Meresa, Y., Lancelotti, C. 2023. Sorghum and finger millet cultivation during the Aksumite period: insights from ethnoarchaeological modelling and microbotanical analysis. Journal of Computer Applications in Archaeology 6(1): 96-116. https://doi.org/10.5334/jcaa.132 Supplementary materials are available at https://doi.org/10.5281/zenodo.8407589.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.003 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.005 | 0.006 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.006 | 0.004 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".