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Predicting time-to-conversion for dementia of Alzheimer's type using multi-modal deep survival analysis

2022· article· en· W4306407322 on OpenAlexafffund
Ghazal Mirabnahrazam, Da Ma, Cédric Beaulac, Sieun Lee, Karteek Popuri, Hyunwoo Lee, Jiguo Cao, James E. Galvin, Lei Wang

Bibliographic record

VenueNeurobiology of Aging · 2022
Typearticle
Languageen
FieldMedicine
TopicDementia and Cognitive Impairment Research
Canadian institutionsUniversity of British ColumbiaMemorial University of NewfoundlandUniversity of VictoriaSimon Fraser University
FundersAlzheimer's Disease Research Center, Wake Forest School of MedicineAlzheimer Society of B.C.Canadian Institutes of Health ResearchNational Institute on AgingAlzheimer Society Research ProgramWake Forest School of MedicineNational Institutes of HealthGenentechNational Institute of Neurological Disorders and StrokeIXICOH. Lundbeck A/SServierEisaiUniversity of NottinghamAlzheimer SocietyMichael Smith Health Research BCU.S. Department of DefenseEli Lilly and CompanyCompute CanadaPeer Reviewed Alzheimer’s Research ProgramNorthern California Institute for Research and EducationNatural Sciences and Engineering Research Council of CanadaBioClinicaBiogenPfizerNovartis Pharmaceuticals CorporationUniversity of Southern CaliforniaBristol-Myers SquibbFondation Brain CanadaAlzheimer's Disease Neuroimaging InitiativeNational Center for Advancing Translational SciencesMeso Scale DiagnosticsAlzheimer's Association
KeywordsDementiaNeuroimagingCognitionAlzheimer's diseaseAlzheimer's Disease Neuroimaging InitiativeDiseaseMedicineAudiologyPsychologyNeuroscienceArtificial intelligenceInternal medicineComputer science

Abstract

fetched live from OpenAlex
No abstract in any covered source. Its absence is recorded, not treated as a negative.

No abstract. This is not a gap in this database; OpenAlex has none either. 23.3% of the frame is in this state, and the screen finds HALF as much metaresearch here, so the absence is a measured bias rather than a missing field.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.110
Threshold uncertainty score0.860

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.040
GPT teacher head0.333
Teacher spread0.293 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations44
Published2022
Admission routes2
Has abstractno

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