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Record W1824963387

Quantile of a Mixture

2014· preprint· en· W1824963387 on OpenAlexaboutno aff
Carole Bernardand, Steven Vanduffel

Bibliographic record

VenuearXiv (Cornell University) · 2014
Typepreprint
Languageen
FieldDecision Sciences
TopicRisk and Portfolio Optimization
Canadian institutionsnot available
Fundersnot available
KeywordsQuantileHospitalityValue (mathematics)EconomicsManagementMathematical economicsActuarial scienceOperations researchLibrary scienceEconometricsMathematicsStatisticsPolitical scienceComputer scienceLaw
DOInot available

Abstract

fetched live from OpenAlex

AbstractIn this note, we give an explicit expression for the quantile of a mixture of tworandom variables. We carefully examine all possible cases of discrete and continuousvariables with possibly unbounded support. The result is useful for finding boundson the Value-at-Risk of risky portfolios when only partial information is available(Bernard and Vanduffel (2014)). ∗ Carole Bernard, Department of Statistics and Actuarial Science at the University of Waterloo (email:c3bernar@uwaterloo.ca). † Corresponding author : Steven Vanduffel, Department of Economics and Political Sciences at VrijeUniversiteit Brussel (VUB). (e-mail: steven.vanduffel@vub.ac.be). ‡ C. Bernard gratefully acknowledges support from the Natural Sciences and Engineering ResearchCouncil of Canada, the Humboldt Research Foundation and the hospitality of the chair of mathematicalstatistics of Technische Universit¨at Mu¨nchen where the paper was completed. S. Vanduffel acknowledgesthe financial support of the BNP Paribas Fortis Chair in Banking.

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)0.001
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: Empirical
Teacher disagreement score0.338
Threshold uncertainty score0.765

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.001
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 head0.152
GPT teacher head0.261
Teacher spread0.109 · 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

Citations4
Published2014
Admission routes1
Has abstractyes

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