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Record W1993994795 · doi:10.3141/2468-12

Incorporating Weather

2014· article· en· W1993994795 on OpenAlexaff
Thomas Nosal, Luis Miranda-Moreno, Zlatko Krstulic

Bibliographic record

VenueTransportation Research Record Journal of the Transportation Research Board · 2014
Typearticle
Languageen
FieldSocial Sciences
TopicUrban Transport and Accessibility
Canadian institutionsMining Association of CanadaMcGill University
Fundersnot available
KeywordsTerm (time)StatisticsCyclingEstimationEnvironmental scienceEconometricsComputer scienceMathematicsGeographyEngineering

Abstract

fetched live from OpenAlex

“Annual average daily bicyclists traffic” (AADBT) is a term commonly used in various cycling-related research and practical applications. The AADBT value is usually estimated by averaging the daily cyclist totals recorded with a long-term automatic counter or by using such a counter to extrapolate short-term counts. The latter method, often referred to as the expansion factor method, produces estimates with considerable error. In an effort to mitigate this error, two AADBT estimation methods were proposed: one that uses a cycling weather model to adjust short-term counts and one that is based on individual daily totals from long-term counts (as opposed to annual averages by day or by month). These methods were compared with two traditional expansion factor methods. The weather and disaggregate methods outperformed the traditional methods, which produced an average absolute relative error of roughly 11% when based on 1 day of short-term data.

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)0.001
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: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.029
Threshold uncertainty score0.057

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0020.003
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0070.002

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 head0.101
GPT teacher head0.417
Teacher spread0.316 · 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 designNot applicable
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

Citations27
Published2014
Admission routes1
Has abstractyes

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