Bibliographic record
Abstract
From the early 1920s until 1959, the photographer Theodor Horydczak produced tens of thousands of prints, transparencies, and negatives, almost all of them black and white. After his retirement, the Library of Congress acquired them and, in 1996, posted digital versions of 14,350 of those images as this American Memory collection. Horydczak was an expert craftsman, and as a commercial photographer he recorded business subjects that complement more famous journalistic photographs of the middle twentieth century: the social documentaries of Dorothea Lange, or the breaking news of Robert Capa. We see doctors examining patients, new buildings rising (Horydczak's perspective-corrected architectural views are particularly good), and all manner of merchandise displayed in store windows or the photographer's studio. Naturally, Horydczak's home town of Washington, D.C., is particularly well represented, but he ranged as far as Canada and Europe. Unfortunately, the site does not live up to its promise. Almost all of...
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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.005 | 0.002 |
| Scholarly communication | 0.004 | 0.002 |
| Open science | 0.000 | 0.003 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.145 | 0.065 |
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".