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Record W2272548005

OPEN DATA EN TRANSPORT URBAIN : QUELLES SONT LES DONNEES MISES A DISPOSITION ? QUELS SONT LES STRATEGIES DES AUTORITES ORGANISATRICES ?

2013· article· fr· W2272548005 on OpenAlexaboutno aff
Catherine Bouteiller, Sybille Berjoan

Bibliographic record

VenueHAL (Le Centre pour la Communication Scientifique Directe) · 2013
Typearticle
Languagefr
FieldComputer Science
TopicData Management and Algorithms
Canadian institutionsnot available
Fundersnot available
KeywordsHumanitiesPolitical scienceArt
DOInot available

Abstract

fetched live from OpenAlex

Les données relatives au transport et à la mobilité mises à disposition en open data sont variées. Quelles sont-elles ? Certaines données sont-elles plus représentées que d'autres ? Quelles sont les stratégies des autorités organisatrices lorsqu'elles mettent à disposition du public ces données ? L'étude proposée inventorie les données mises à disposition dans 6 villes: Paris, Londres, New York, Toronto, Madrid et Singapour. 4 types de données sont présentes dans les bases. La donnée temps réel est la plus rare, c'est aussi la plus recherchée. 3 stratégies d'acteurs se dégagent in fine : ceux qui mettent à disposition la donnée brute, ceux qui délivrent un premier niveau de service, par exemple du calcul d'itinéraire, et vendent une donnée élaborée. Enfin ceux qui investissent dans des projets pour prendre une partie de la valeur que peut générer les applications issues du traitement de ces données.

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)0.023
metaresearch head score (Gemma)0.071
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesOpen science
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.997
Threshold uncertainty score0.121

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0230.071
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0050.008
Science and technology studies0.0050.004
Scholarly communication0.0190.033
Open science0.0030.008
Research integrity0.0040.005
Insufficient payload (model declined to judge)0.0110.007

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 head0.256
Teacher spread0.219 · 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.

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

Citations1
Published2013
Admission routes1
Has abstractyes

Explore more

Same venueHAL (Le Centre pour la Communication Scientifique Directe)Same topicData Management and AlgorithmsFrench-language works237,207