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Record W2763825041

Omitting correlated variables

2004· article· es· W2763825041 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueInvestigación operacional · 2004
Typearticle
Languagees
FieldMathematics
TopicStatistical Methods and Applications
Canadian institutionsRoyal Military College of Canada
Fundersnot available
KeywordsHumanitiesPhilosophy
DOInot available

Abstract

fetched live from OpenAlex

Los datos coleccionados del mundo fisico, biologico o producto de la actividad humana usualmente estan altamente correlacionados entre ellos, estableciendose el cuestionamiento de si menos variables pueden contener casi la misma informacion. Una solucion cruda es mirar simplemente a la matriz de correlacion de Pearson y omitir uno de un par de variables altamente correlacionadas. En contraste con esto, nosotros desarrollamos un metodo sistematico de condicionar una o mas variables, y observar la resultante matriz de covarianzas. Si las variables tienen una pequena varianza despues de condicionar, entonces las variables condicionantes contienen la mayor parte de la informacion de todas variables originales. Paralelamente a los usuales tests aplicados en juzgar cuantos componentes principales son suficientes para representar toda la data, usamos la cantidad de varianza explicada por la(s) variable(s) condicionante(s), como una medida de la informacion contenida. El trabajo explica la computacion e incluye ejemplos usando conjuntos de datos publicados. El enfoque esta basado en la alta ganancia respecto al uso de componentes principales, y posee la obvia ventaja respecto a ellos de omitir simplemente algunas de las variables originales a partir de otras consideraciones. El metodo ha sido codificado en Visual-Basic anadido a una hoja de calculo Excel

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.

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)0.003
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.124
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.003
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)0.0010.001

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 head0.062
GPT teacher head0.364
Teacher spread0.302 · 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