The model behind the check
About AURORA
AURORA — Alzheimer's Unified Representation for Omni-modal Risk Analysis — is a multimodal research model for Alzheimer's disease analysis. It combines clinical information with MRI-based information to identify patterns associated with Alzheimer's disease.
How it's built
Two data streams, one prediction
A tabular pathway (gradient-boosted trees over clinical and neuropsych scores) and an imaging pathway (EfficientNetB1 over MRI slices) are combined by weighted late fusion, producing a CN / MCI / AD classification with probabilities.
Trained on ADNI
Training used the Alzheimer's Disease Neuroimaging Initiative dataset — real patient MRIs and clinical records, the same source used widely in Alzheimer's research.
Lightweight by design
EfficientNetB1 was chosen so the imaging pathway runs on ordinary CPU hardware rather than requiring a dedicated GPU.
Honest limitations
- AURORA has not been clinically validated, peer reviewed, or approved by any medical regulator. It was built as a science fair project.
- Performance varies by class and by data split. The imaging pathway is weak on its own and contributes mainly through fusion.
- The paired imaging-plus-clinical cohort is small, so the fusion weighting is tuned on limited data.
- Reported contributing factors are approximations of global feature importance, not per-patient attribution.
- ADNI participants are not representative of the general population, so results may not transfer evenly across groups.
AURORA and the memory check are different things
The at-home memory check does not run through AURORA. The check uses simple, transparent scoring of the questions and tasks you complete — because AURORA expects standardised scores administered by a clinician (MMSE, MoCA, Trail Making, and similar), and feeding it self-administered answers would produce a number nobody has validated.
The AURORA analysis is available separately, for people who already have clinical test results from a doctor and want to explore what a multimodal model makes of them.
Open the AURORA research tool →