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Record W4380079374 · doi:10.32920/23467526.v1

Empirical Estimation of the Haezendonck-Goovaerts Risk

2023· preprint· en· W4380079374 on OpenAlexaffabout
Kathleen E. Miao

Bibliographic record

Venuenot available
Typepreprint
Languageen
FieldEngineering
TopicReservoir Engineering and Simulation Methods
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsMeasure (data warehouse)Risk measureExpected shortfallCoherent risk measureEstimationSpectral risk measureEmpirical measurePortfolio optimizationEconometricsConvergence (economics)Value at riskEstimatorDynamic risk measureComputer scienceEmpirical researchMathematicsStatisticsPortfolioMathematical optimizationRisk managementData miningEconomics

Abstract

fetched live from OpenAlex

<p> In this thesis, we describe and study the empirical Haezendonck-Goovaerts (HG) risk measure. First, we introduce the HG risk measure, and provide the mathematical construction of the HG measure. We then show that the HG risk measure is coherent, and describe estimation methods. We perform extensive numerical experiments, and conclude that the optimization methodology of estimating risk with the HG has significant flaws. We find that the empirical method of estimation is a significant improvement over estimation via optimization with respect to both speed and accuracy, and that the empirical method has the behaviours of asymptotic normality and weak convergence. Finally, we perform a case study with a Canadian portfolio, and compare the results to the well-known and well-used risk measure expected shortfall. </p>

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 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)0.000
Version: codex-gemma-dda1882f352aValidation 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 score0.596
Threshold uncertainty score0.547

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
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 integrity0.0000.001
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 head0.058
GPT teacher head0.338
Teacher spread0.280 · 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 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
Published2023
Admission routes2
Has abstractyes

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