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Record W1488442155

Assessment of the solution and prediction algorithms during the optimization of fluid-structure interaction dynamic systems

2004· article· en· W1488442155 on OpenAlexvenueno aff
Walter Jesus Paucar Casas, Renato Pavanello, Paulo Henrique Trombeta Zannin

Bibliographic record

VenueCanadian acoustics · 2004
Typearticle
Languageen
FieldEngineering
TopicVibration and Dynamic Analysis
Canadian institutionsnot available
Fundersnot available
KeywordsEigenvalues and eigenvectorsScheme (mathematics)AlgorithmMathematical optimizationProcess (computing)Computer scienceOptimization problemApplied mathematicsMathematicsMathematical analysis
DOInot available

Abstract

fetched live from OpenAlex

For optim ization problems based on dynamic criteria the system eigenvalues m ust be re-computed for each iteration as the values o f the design parameters are changed.From a computational point o f view it would be more efficient to replace the laborious process o f determining the eigenvalues by direct prediction.The suitability and advantages o f this scheme are examined here.The num ber o f operations required by the direct and the predictive solution algorithms are compared.The prediction scheme has been applied to the problem o f m axim izing the separation o f two adjacent eigenvalues for structural and couple fluid-structure systems. s o m m a i r eLes problèmes d 'optim isation basés sur des critères dynamiques doivent obtenir les valeurs propres de système, qui dépendent directem ent des valeurs des variables de conception.Pendant le processus d 'optimisation la fonction objective est calculée à plusieurs reprises pour chacun nouvel ensemble de variables de conception, et alors une alternative plus économique du point de vue informatique devrait prévoir les valeurs propres pour le nouvel ensemble de variables au lieu de résoudre le problème encore.Ainsi, le but de ce travail est de déterm iner la convenance et les avantages d 'employer la prévision de valeurs propres, au lieu des solutions directes, dans les itérations pendant le processus d 'optimisation.Puis, le nombre d 'opérations entre la solution directe et prédictive du système est comparé pour une itération principale pendant l'optimisation.Généralement, il est nécessaire de résoudre le système ou de le prévoir plus d 'une fois pour avancer à la prochaine itération principale; la prévision est meilleure dans ce cas-ci, parce q u 'elle doit calculer seulement la sensibilité des valeurs propres une fois pour une itération principale de l 'algorithme.Après, une analyse d 'erreur des valeurs propres et des vecteurs propres prévus est faite en vue de lim iter la portée de la prévision dans le processus d 'optimisation.L'analyse est faite pendant la m axim isation d 'espace entre deux valeurs propres adjacentes sur les systèmes structuraux et couplés de fluide-structure, modifiant une certaine variable structurale géométrique précédem m ent définie du modèle fini d 'élément.

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)0.003
metaresearch head score (Gemma)0.015
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.004
Threshold uncertainty score0.016

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.015
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
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 head0.003
GPT teacher head0.189
Teacher spread0.186 · 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 designBench or experimental
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
Published2004
Admission routes1
Has abstractyes

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