MétaCan
Menu
Back to cohort

Distributionally Robust Chance-Constrained Optimization with Deep Kernel Ambiguity Set

2022· article· en· W4296912309 on OpenAlexaff
Shu‐Bo Yang, Zukui Li

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldDecision Sciences
TopicRisk and Portfolio Optimization
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsKernel (algebra)Mathematical optimizationAmbiguityComputer scienceNonlinear programmingRobust optimizationKernel methodMathematicsArtificial intelligenceAlgorithmNonlinear systemSupport vector machine

Abstract

fetched live from OpenAlex

A distributionally robust chance-constrained programming (DRCCP) approach based on the deep kernel ambiguity set is proposed in this paper. The kernel ambiguity set possesses notable advantages over other existing ambiguity sets from the literature, and it is constructed by using the kernel mean embedding (KME) and the maximum mean discrepancy (MMD) between distributions. In the proposed method, the worst-case Conditional Value-at-Risk (CVaR) approximation is employed to approximate the distributionally robust joint chance constraint (DRJCC). Additionally, the performance of the presented method can be significantly enhanced by using the multi-layer deep arc-cosine kernel (MLACK), compared to the use of shallow kernels. The presented DRCCP approach is applied to a numeral example and a nonlinear process optimization problem to demonstrate its efficacy.

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)0.002
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation 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: Empirical · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.011

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.004
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0020.002
Open science0.0020.003
Research integrity0.0020.003
Insufficient payload (model declined to judge)0.0020.000

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 head0.063
GPT teacher head0.313
Teacher spread0.249 · 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 designTheoretical or conceptual
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
Published2022
Admission routes1
Has abstractyes

Explore more

Same topicRisk and Portfolio OptimizationFrench-language works237,207