Setting the Record Straight: On the Russian Origins of Dasymetric Mapping
Bibliographic record
Abstract
A growing volume of dasymetric mapping research poses a very important and still unanswered question about the historical origins of this method. Conflicting versions offered in the literature propagate confusion among researchers. This article attempts to clarify who invented the dasymetric mapping method and first published dasymetric maps, as well as when this took place. Evidence presented in this article suggests that the Russian geographer Benjamin Semenov-Tian-Shansky must be considered the originator and first practitioner of modern dasymetric mapping. He developed this technique in 1911 and published a substantial number of maps in the 1920s. Reviews and descriptions of Semenov-Tian-Shansky's works in English appeared in the Geographical Review a decade before the frequently cited article by John Wright was published in the same journal.
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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 | 0.006 | 0.010 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.002 | 0.009 |
| Scholarly communication | 0.004 | 0.005 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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".