Creating DDI-Lifecycle Documentation for Longitudinal Data at ICPSR
Bibliographic record
Abstract
In line with ICPSR’s commitment to adopt DDI Lifecycle to document some of its longitudinal studies, we have recently embarked on a new project that involves creating DDI 3.2 metadata for one of our most popular collections at the National Social Life, Health and Aging Project (NSHAP), which is managed and distributed by our National Archive of Computerized Data on Aging (NACDA). We will briefly introduce this collection and elaborate on the steps taken to move its metadata to DDI Lifecycle using Colectica Designer and make it publicly available on the Colectica Portal. We plan to focus on any specific challenges encountered during this process and the practical solutions applied to overcome them. We also intend to showcase some of the benefits of using DDI-L, such as the improved comparability and usability of the data.
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 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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.004 | 0.007 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.006 |
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; both teacher heads agree on what is shown here.
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".