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Record W4205175776 · doi:10.22215/etd/2021-14719

Joint Modeling of Longitudinal and Survival Data

2021· dissertation· en· W4205175776 on OpenAlexaff
Alia Alkhathami

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldMathematics
TopicStatistical Methods and Inference
Canadian institutionsCarleton University
Fundersnot available
KeywordsRandom effects modelEstimatorGeneralized linear mixed modelMixed modelInferenceStatisticsEvent (particle physics)Confidence intervalSurvival analysisEconometricsComputer scienceRestricted maximum likelihoodMathematicsMaximum likelihoodMedicineArtificial intelligenceMeta-analysis

Abstract

fetched live from OpenAlex

An important target of many biomedical and clinical research paradigms is to identify biomarkers, including risk scores, with strong prognostic capabilities.Biomarker evaluations are usually utilized to predict the progression of the disease under study.In such clinical studies, one major research objective is to identify immune response biomarkers measured longitudinally that may be associated with the risk of death, infection, or any Throughout the writing of this dissertation I have received a great deal of support and assistance from special people.Therefore, I would like to take some time to thank all the people without whom this work would never have been possible.Those people literally have contributed to the research in their own particular way, and for that they deserve special thanks from me.To the greatest extend, I sincerely thank the almighty God for His graces, strength, sustenance, and His faithfulness and love from the beginning of my academic life up to this doctoral level.Truly, His benevolence has made me excel and succeed in all my academic pursuits.I am grateful to God for all my accomplishments, especially this work.Mainly, My unalloyed appreciation also goes to my amiable, ever supportive and humble

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)0.022
metaresearch head score (Gemma)0.053
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.022
Threshold uncertainty score0.116

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0220.053
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.002
Bibliometrics0.0020.003
Science and technology studies0.0010.002
Scholarly communication0.0030.004
Open science0.0030.003
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.0050.001

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 head0.378
GPT teacher head0.457
Teacher spread0.079 · 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 designSimulation or modeling
Domainnot available
GenreMethods

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
Published2021
Admission routes1
Has abstractyes

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Same topicStatistical Methods and InferenceFrench-language works237,207