Bibliographic record
Abstract
This chapter talks about an 83-year-old man with a 3-4-year history of progressive speech difficulty. Past medical history was remarkable for hypertension and ischemic heart disease. Psychiatric history was unremarkable. General neurological exam was remarkable for bilateral cogwheeling in the upper extremities, rigid posture, and bilateral decreased arm swing. Magnetic Resonance Imaging (MRI) of the brain showed diffuse atrophy. Single-Photon Emission Computed Tomography (SPECT) showed decreased perfusion in the left temporo-parietal region. The findings suggested a diagnosis of progressive non-fluent aphasia (PNFA). The possibility of corticobasal syndrome (CBS) was also raised. A variety of neuropathological changes have been associated with PNFA. The most common are non-Alzheimer tauopathies. Alzheimer pathology has also being identified in PNFA, with some reports showing these in up to 30% of cases. In these patients, the distribution of AD pathology may be unusual, showing a frontotemporal pattern.
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 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.015 | 0.008 |
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".