LES CHANGEMENTS DE L'OCCUPATION DU SOL DANS LE BASSIN VERSANT DE LA RIVIÈRE CÂU (VIÊT-NAM)
Bibliographic record
Abstract
Les objectifs de notre recherche étaient la détection des changements de l'occupation du sol à partir de données satellitaires multidates et de l'estimation générale de l'impact de ces changements sur la qualité des ressources en eau dans le bassin versant. La méthode de comparaison diachronique de classifications a été utilisée. L'approche de classification orientée-objets (contextuelle) à partir de pseudo-bandes (ACP, NDVI) a été retenue. Les précisions globales obtenues sont de 69 % (1993), 80 % (1999) et 78 % (2003). Ces résultats ont permis d'identifier l'évolution temporelle et spatiale de l'occupation du sol du bassin versant pour une période de dix ans (de 1993 à 2003). Il ressort une expansion spatiale et une augmentation importante de la densité du milieu urbain. Il ressort également une diminution des milieux agricoles et forestiers. Les premiers résultats de l'analyse de l'impact du changement de l'occupation du sol sur la qualité de l'eau de surface ont montré un lien qualitatif entre ces deux grandeurs.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 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".