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Record W2376804346

Simulated Analysis of Bivariate Extreme Mixed Model

2005· article· en· W2376804346 on OpenAlexaboutno aff
Hi D

Bibliographic record

VenueChinese Journal of Applied Probability and Statisties · 2005
Typearticle
Languageen
FieldEconomics, Econometrics and Finance
TopicFinancial Risk and Volatility Modeling
Canadian institutionsnot available
Fundersnot available
KeywordsBivariate analysisCopula (linguistics)MathematicsExtreme value theoryEconometricsGeneralized extreme value distributionMixed modelStatisticsMarginal distributionJoint probability distributionMarginal modelTail dependenceMultivariate statisticsRegression analysisRandom variable
DOInot available

Abstract

fetched live from OpenAlex

Bivariate extreme mixed model can not reach the complete dependence of extreme variables, so it has a restriction in application. However, bivariate extreme mixed model still a good model for some dependence. In this paper we firstly introduce some basic knowledge about bivariate extreme mixed model. Specifically, we aim to assess the effects through a simulation study when a BEV distribution with mixed model dependence is fitted to data from other bivariate extreme value copula. As a result, if we measure dependence by Kendall'sτ, we find that to some extent mixed model can capture the dependence of other models. And for asymptotically independent model, the bias in the marginal parameters is not severe. At last, we use mixed conditional model and GEV conditional model to analysize the data about the log-daily returns of two exchange rates: UK sterling against both the US dollar and the Canadian dollar.

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 score0.167
Threshold uncertainty score0.571

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
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 head0.048
GPT teacher head0.240
Teacher spread0.192 · 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

Citations1
Published2005
Admission routes1
Has abstractyes

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