Bibliographic record
Abstract
In 1853, Robert Stephenson (1803–1859) travelled to North America, principally in connection with the design and construction planning of the Victoria Bridge across the River St. Lawrence at Montreal for which he was the Consulting Engineer. He travelled via New York in both directions, and apparently on his return journey, he took time off to visit the studios of the Meade brothers, Henry and Charles, to have a daguerreotype portrait taken of himself. The image was seemingly privately owned until it was acquired by Bill Becker, proprietor of the American Museum of Photography, in 2017. The author was consulted about the image and confirmed that it was indeed that of Stephenson. The image has now been acquired by Mark Andrews (Member) of Toronto, who has kindly agreed to its publication, for the first time, in the International Journal. To accompany its publication, the background story of the eight weeks Stephenson spent in the United States and Canada has been researched, to set the context for his visit and the photograph.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.018 | 0.004 |
| Scholarly communication | 0.004 | 0.002 |
| Open science | 0.001 | 0.004 |
| Research integrity | 0.002 | 0.004 |
| Insufficient payload (model declined to judge) | 0.047 | 0.007 |
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".