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Record W3089367349 · doi:10.1080/23249935.2020.1831649

Travel distance and land use: a generalized Box–Cox model with conditional spatial lag dependence

2020· article· en· W3089367349 on OpenAlexafffundabout
Jason Hawkins, Khandker Nurul Habib

Bibliographic record

VenueTransportmetrica A Transport Science · 2020
Typearticle
Languageen
FieldSocial Sciences
TopicUrban Transport and Accessibility
Canadian institutionsUniversity of Toronto
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsEconometricsLagAutocorrelationSpatial analysisSpatial econometricsEconometric modelStatisticsSampling (signal processing)Spatial dependenceField (mathematics)MathematicsComputer science

Abstract

fetched live from OpenAlex

Disentangling individual contributions to travel distance continues to be an active field of research, with advances in econometrics being germane. In this study, we focus on several econometric techniques, some of which have been applied in isolation in past studies, but the combination of which has yet to be applied to the problem. We apply a series of statistical tests using the method of artificial regression to test the joint effects of functional form and spatial autocorrelation on model fit. An empirical application is made to the Greater Toronto Area using a large-scale travel survey. Several results found in past studies are refuted through the use of advanced econometric methods, including the previous finding of a positive correlation between travel distance and density in the study region. Model results are validated using bootstrapped sampling and local indicators of spatial association.

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 categoriesMeta-epidemiology (narrow), Science and technology studies
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.323
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.004
Science and technology studies0.0010.003
Scholarly communication0.0000.002
Open science0.0010.000
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 head0.039
GPT teacher head0.278
Teacher spread0.239 · 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.

Study designObservational
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

Citations8
Published2020
Admission routes3
Has abstractyes

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