Bibliographic record
Abstract
This chapter presents the foundations of dendrohydrology as employed in the ARCHIVES project. The development of annual rings in trees subject to seasonality is dependent on physiological processes leading to changes in the physical, biological and chemical properties of woody tissues. The rings formed, by their width, density and isotopic ratios of their elements (oxygen and carbon) provide information on the tree growth conditions. The metabolic processes leading to the production of woody tissue (wood) are governed by so-called limiting factors that dendrochronology seeks to reconstitute. The application of dendrochronology to hydrology (dendrohydrology) is supported by three approaches: 1) the search for indicators of the stresses caused by excess or lack of soil water for growth, 2) the dating of the direct actions of water or ice on trees bordering water bodies, and 3) the study of concordances between the hydro-climatic variations of a region (precipitation and temperature) and the characteristics of the rings of affected trees. The ARCHIVES project consisted in exploring these avenues over a vast territory in northern Quebec-Labrador.
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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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.003 | 0.005 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.004 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.055 | 0.013 |
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".