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Record W4285221620 · doi:10.7202/1088302ar

Identifier, détecter et localiser les centralités économiques : une proposition inspirée de l’algorithme DBSCAN

2022· article· fr· W4285221620 on OpenAlexaffvenueabout
Jean Dubé, Philippe‐Antoine Bilodeau, Gabriel Sylvain-Nolet, Claudel Keuneng, Oussema Amir Boumankar, Joé Dufour

Bibliographic record

VenueCanadian Journal of Regional Science · 2022
Typearticle
Languagefr
FieldEconomics, Econometrics and Finance
TopicRegional Economics and Spatial Analysis
Canadian institutionsUniversité Laval
Fundersnot available
KeywordsPropositionHumanitiesDBSCANComputer scienceCartographyGeographyArtArtificial intelligenceCluster analysisPhilosophy

Abstract

fetched live from OpenAlex

En sciences régionales, la notion de centre(s) revêt une importance capitale pour plusieurs modèles théoriques et cadres conceptuels. Les dynamiques urbaines et locales ont conduit à une multiplication des centres rendant le polycentrisme la norme dans la plupart des aires métropolitaines. Or, la localisation du centre (ou des centres) est souvent postulée comme exogène, déterminée à l’avance. Elle s’avère souvent un intrant nécessaire afin d’identifier les multiples centres. Cette note de recherche propose de développer un algorithme permettant d’identifier, de détecter et de localiser les différents centres à partir d’une typologie issue de critères économiques (unités de logements et commerciales). Afin de présenter son implémentation, deux applications fictives sont développées. Une première sur une ville monocentrique, et une seconde sur une ville polycentrique. Une application empirique permet d’identifier et de localiser les centralités de 31 régions métropolitaines de recensement (RMR) et agglomérations de recensement (AR) du Québec à partir d’information sur les unités d’évaluation contenues dans les rôles d’évaluations municipaux.

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)0.003
metaresearch head score (Gemma)0.000
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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.809
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0030.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.001
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 head0.037
GPT teacher head0.240
Teacher spread0.202 · 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 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

Citations3
Published2022
Admission routes3
Has abstractyes

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