Ten Years of Experience in Converting Canadian Hydrographic Service Charts to a World-Based Geodetic Datum
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
As long ago as 1975, North Americans realized that the North American Datum of 1927 (NAD 27) was becoming out-dated and that it would eventually have to be replaced by a geocentric datum. The Canadian Hydrographic Service (CHS) welcomed the idea but was also fully aware that some of its charts were not even based on NAD 27. In 1986, once the framework stations became known on the North American Datum of 1983 (equivalent to the World Geodetic System of 1984), CHS started the conversion of Canadian charts to that datum. This paper describes why the work was necessary, the means by which it was done, the difficulties encountered and overcome and the progress made to date.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.006 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it