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Record W4403089890 · doi:10.1016/j.aej.2024.09.029

Parameter estimation for reduced Type-I Heavy-Tailed Weibull distribution under progressive Type-II censoring scheme

2024· article· en· W4403089890 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueAlexandria Engineering Journal · 2024
Typearticle
Languageen
FieldMathematics
TopicStatistical Distribution Estimation and Applications
Canadian institutionsnot available
FundersKing Saud University
KeywordsCensoring (clinical trials)Weibull distributionStatisticsMathematicsEstimationType (biology)EconometricsEngineeringBiology

Abstract

fetched live from OpenAlex

Reduced Type-I heavy-tailed Weibull (RTI-HTW) distribution is a particular case of the Type-I heavy-tailed family of distributions. This article has studied the properties, inference and real-life applications of RTI-HTW distribution. Firstly, properties such as quantile function, moment-generating function, stress–strength reliability, measure of uncertainty, and mean residual life have been discussed. Further, the inference of RTI-HTW distribution has been discussed under classical and Bayesian frameworks. We have studied the point and interval estimations of model parameters under the progressive Type-II censoring scheme. Four point estimation methods have been used to find the point estimates, such as maximum likelihood estimate (MLE), improved MLE, and Bayesian estimates under informative and kernel priors. Additionally, the approximate confidence interval has been calculated using MLEs, whereas the credible interval has been derived using the Bayesian estimates under informative prior. A Monte Carlo simulation study has been discussed to compare the results of all methods. To illustrate the practical applicability of the proposed model and methodologies, we have analyzed two real-world data sets: the mortality rate of COVID-19 patients in Canada and the infant mortality rate in China. Numerical results demonstrate that the proposed model provides a good fit for both data sets, and the estimation methods discussed are effective and satisfactory.

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.

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)0.000
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.929
Threshold uncertainty score0.681

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.054
GPT teacher head0.360
Teacher spread0.306 · 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