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Record W2186619673

RECENT ADVANCES IN GLOBALLY ROBUST INFERENCE METHODS

2005· article· en· W2186619673 on OpenAlexaff
Matías Salibián‐Barrera

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldMathematics
TopicAdvanced Statistical Methods and Models
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsEstimatorRobustness (evolution)OutlierInferenceRobust statisticsComputationMathematicsAsymptotic distributionComputer scienceMathematical optimizationAlgorithmStatisticsArtificial intelligence
DOInot available

Abstract

fetched live from OpenAlex

summary In this paper we discuss how recent advances in robustness theory can be used to construct globally robust inference methods, that is: procedures that remain stable and informative over a range of data distributions that includes the cases of asymmetric outliers, heavy tails, and other departures from the classical unperturbed model. In order to construct these inference methods we need robust estimators that are asymptotically normally distributed over contamination neighbourhoods and that simultaneously have good (small) asymptotic biases. First, we discuss the derivation of asymptotic approximations to the distribution of robust estimators that are valid over whole gross error contamination neighbourhoods. Next, we consider how to use the maximum bias of an estimator in the construction of globally robust confidence intervals and tests of hypotheses. Finally, we describe recently proposed efficient algorithmsto compute highly robust estimators. These algorithms allow the computation of robust estimators with good robustness and efficiency properties in a much widerrange of problems than was previously possible.

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)0.014
metaresearch head score (Gemma)0.035
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: Methods · Consensus signal: Methods
Teacher disagreement score0.014
Threshold uncertainty score0.073

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0140.035
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0030.003
Bibliometrics0.0030.003
Science and technology studies0.0010.003
Scholarly communication0.0020.003
Open science0.0030.004
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.0030.002

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 head0.209
GPT teacher head0.533
Teacher spread0.324 · 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
GenreMethods

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
Published2005
Admission routes1
Has abstractyes

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