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Record W7133052104

MRI-based Neurodevelopmental Outcome in Very Preterm Neonates

2023· dissertation· W7133052104 on OpenAlexaboutno aff
Amir Saman Osia

Bibliographic record

VenueTSpace · 2023
Typedissertation
Language
FieldMedicine
TopicNeonatal and fetal brain pathology
Canadian institutionsnot available
Fundersnot available
KeywordsToddlerOutcome (game theory)Bayley Scales of Infant DevelopmentAffect (linguistics)Gestational ageNeuroimagingConvolutional neural network
DOInot available

Abstract

fetched live from OpenAlex

Preterm birth is the leading cause of lifelong disability globally and in Canada. Gaining insight to the different factors and variables that affect preterm neonatal neurodevelopmental trajectory can aid clinicians in introducing beneficial interventions. The work in this thesis focuses on using early in life brain imaging to predict the neurodevelopmental outcome as measured by the Bayley Score of Infant and toddler Development (BSID) at 18 months of age. The proposed method combines the usage of a convolutional neural network to segment the brain into coarse regions. The segmentation information, along with other patient metadata are used in a random forest model to predict the aforementioned outcome. Precision medication can be facilitated by utilizing the SHapley Additive exPlanations (SHAP) to highlight which factors are most in need of clinical intervention.

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 imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.006
Threshold uncertainty score0.011

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.001

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 head0.030
GPT teacher head0.340
Teacher spread0.310 · 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 source (direct Gemma or distilled Codex), 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

Citations0
Published2023
Admission routes1
Has abstractyes

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