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Record W7052472623

Représentation et identification des hypersurfaces

2014· other· fr· W7052472623 on OpenAlexvenueno aff

Bibliographic record

VenueLibrary and Archives Canada (Government of Canada) · 2014
Typeother
Languagefr
FieldPhysics and Astronomy
TopicMagnetic confinement fusion research
Canadian institutionsnot available
Fundersnot available
KeywordsPopulationIntersection (aeronautics)Domain (mathematical analysis)Variable (mathematics)Context (archaeology)
DOInot available

Abstract

fetched live from OpenAlex

L’objectif à moyen terme de ce travail est d’explorer quelques formulations des problèmes\nd’identification de forme et de reconnaissance de surface à partir de mesures ponctuelles.\nCes problèmes ont plusieurs applications importantes dans les domaines de l’imagerie\nmédicale, de la biométrie, de la sécurité des accès automatiques et dans l’identification\nde structures cohérentes lagrangiennes en mécanique des fluides. Par exemple, le\nproblème d’identification des différentes caractéristiques de la main droite ou du visage\nd’une population à l’autre ou le suivi d’une chirurgie à partir des données générées par un\nnumériseur.\nL’objectif de ce mémoire est de préparer le terrain en passant en revue les différents\noutils mathématiques disponibles pour appréhender la géométrie comme variable d’optimisation\nou d’identification. Pour l’identification des surfaces, on explore l’utilisation de\nfonctions distance ou distance orientée, et d’ensembles de niveau comme chez S. Osher et\nR. Fedkiw ; pour la comparaison de surfaces, on présente les constructions des métriques\nde Courant par A. M. Micheletti en 1972 et le point de vue de R. Azencott et A. Trouvé en 1995 qui consistent à générer des déformations d’une surface\nde référence via une famille de difféomorphismes. L’accent est mis sur les fondations\nmathématiques sous-jacentes que l’on a essayé de clarifier lorsque nécessaire, et, le cas\néchéant, sur l’exploration d’autres avenues.

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)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.007
Threshold uncertainty score0.023

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0020.002
Open science0.0010.002
Research integrity0.0020.002
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 head0.004
GPT teacher head0.172
Teacher spread0.168 · 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 designTheoretical or conceptual
Domainnot available
GenreMethods

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

Citations0
Published2014
Admission routes1
Has abstractyes

Explore more

Same venueLibrary and Archives Canada (Government of Canada)→Same topicMagnetic confinement fusion research→French-language works237,207→