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Record W4231122003 · doi:10.22215/etd/2020-14354

Dose-Response Modelling and Optimization of Quantitative High-Throughput Screening Assays

2020· dissertation· en· W4231122003 on OpenAlexafffund
Shintaro Hagiwara

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEnvironmental Science
TopicEffects and risks of endocrine disrupting chemicals
Canadian institutionsCarleton University
FundersNational Institutes of HealthUniversity of Ottawa
KeywordsRisk assessmentIdentification (biology)Computer scienceHazard analysisHazardRisk analysis (engineering)Reliability engineeringData miningEngineeringMedicineBiology

Abstract

fetched live from OpenAlex

Human health risk assessment is a process designed to characterize potential health risks associated with exposure to environmental agents.Classically, it involves four main steps:(1) hazard identification, (2) dose-response assessment, (3) exposure assessment, and (4) risk characterization.Traditionally, toxicological testing has relied heavily on experimental animals to predict potential human health risk.Motivated in part by the 2007 U.S. National Research Council report, Toxicity Testing in the 21 st Century: A Vision and aStrategy, there has been a shift towards new approach methodologies using in vitro, in silico, and in chemico techniques.Quantitative high-throughput screening (qHTS) is one such methodology that can rapidly produce in vitro assays for thousands of chemicals that can be analyzed for hazard identification and dose-response assessment purposes.I owe my greatest appreciation to my family for their support and love they provided me throughout my entire life.I would like to further thank my girlfriend, Hui Zhang, for providing daily support and warm encouragement to help me achieve this milestone.

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)0.003
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: Empirical · Consensus signal: none
Teacher disagreement score0.004
Threshold uncertainty score0.011

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.001

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 head0.022
GPT teacher head0.337
Teacher spread0.314 · 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
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
Published2020
Admission routes2
Has abstractyes

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