Bibliographic record
Abstract
Diatoms, vascular vegetation, sediment data and water salinity from contemporary intertidal environ ments in Roudsea Marsh, northwest England, are used to define altitudinal relationships between diatom assem blages and reference water levels. Comparison of these data with the high-resolution diatom biostratigraphy of a fossil marsh sequence allows identification of fluctuations of relative sea level in the mid- and late Holo cene. Two oscillations in relative sea level are recorded. A rise in sea level (> 0.6 m) led to the inundation of the site after 6000 BP and was followed by a fall in sea level (c. 1 m) around 4700 BP. A second rise in sea level (> 0.5 m) occurred before 2420 BP and was followed by a relatively stable or smaller rise of sea level during the last millennium. The use of diatom groups based on marsh altitude was successful.
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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) | 0.004 | 0.002 |
| Meta-epidemiology (broad) | 0.003 | 0.002 |
| Bibliometrics | 0.004 | 0.003 |
| Science and technology studies | 0.003 | 0.003 |
| Scholarly communication | 0.005 | 0.009 |
| Open science | 0.005 | 0.005 |
| Research integrity | 0.009 | 0.004 |
| Insufficient payload (model declined to judge) | 0.992 | 0.994 |
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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.
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".