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Record W2319304088 · doi:10.3166/ts.28.547-574

Sélection adaptative de caractéristiques pertinentes et classification hiérarchique des images dans les bases hétérogènes

2011· article· fr· W2319304088 on OpenAlexvenueno aff
Rostom Kachouri, Khalifa Djemal, H. Mâaref, Caroline Chaux, Saïd Moussaoui

Bibliographic record

VenueTraitement du signal · 2011
Typearticle
Languagefr
FieldComputer Science
TopicImage Retrieval and Classification Techniques
Canadian institutionsnot available
Fundersnot available
KeywordsPolitical science

Abstract

fetched live from OpenAlex

Dans les bases hétérogènes, les images appartiennent souvent à différentes classes thématiques et nécessitent une large description permettant leur reconnaissance. Cependant, les caractéristiques utilisées ne sont pas toujours adaptées au contenu de la base d’images considérée. Nous proposons dans cet article une nouvelle approche se basant sur deux originalités, à savoir la sélection adaptative de caractéristiques et la classification multi- modèle intitulée MC-MM. La sélection adaptative permet de ne considérer que les caractéristiques les mieux adaptées au contenu de la base d’images utilisée. La méthode MC- MM assure la reconnaissance des images en se servant hiérarchiquement des caractéristiques sélectionnées. Les résultats expérimentaux obtenus confirment l’efficacité et la robustesse de notre approche.

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)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.867
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
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 head0.172
GPT teacher head0.320
Teacher spread0.148 · 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 designBench or experimental
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".

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Citations0
Published2011
Admission routes1
Has abstractyes

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