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Record W3213006082 · doi:10.1016/j.ifacol.2021.08.184

Post-Processing of non gradient-based Topology Optimization with Simulated Annealing

2021· article· en· W3213006082 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueIFAC-PapersOnLine · 2021
Typearticle
Languageen
FieldEngineering
TopicTopology Optimization in Engineering
Canadian institutionsUniversity of Ontario Institute of Technology
Fundersnot available
KeywordsTopology optimizationSimulated annealingMathematical optimizationComputer scienceDiscontinuity (linguistics)Topology (electrical circuits)Convergence (economics)AlgorithmCantileverMathematicsFinite element methodEngineeringStructural engineering

Abstract

fetched live from OpenAlex

Topology optimization (TO) is a mathematical method of determining distribution of material in a design domain to achieve maximum performance for the desired application. Non-gradient-based topology optimization methods are beneficial for the problems in which the derivative of the objective function is not easy or even possible to calculate. The results coming from such methods include gray area and discontinuity based on the optimization algorithm. In this paper, a post-processing algorithm is presented to improve the results from a non-gradient topology optimization simulated annealing based process. It has been shown that the results using this post-processing method have less gray areas by fixing the densities of the elements. Therefore, better compliance values obtained for the cantilever and MBB beams problems regarding the results in the literature. The main advantage of post-processing is that the number of iterations can be reduced without sacrificing the quality of the results. This leads to improving the results as well as reducing the calculation costs by the faster convergence.

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.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.267
Threshold uncertainty score0.944

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
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 head0.005
GPT teacher head0.212
Teacher spread0.207 · 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