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Record W2335583346 · doi:10.2514/6.2008-6022

Method of Regular Simplexes: A Difference-Assisted Simplex-Based Search Algorithm

2008· article· en· W2335583346 on OpenAlexaff
Arman Azad, J. S. Hansen

Bibliographic record

Venue12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference · 2008
Typearticle
Languageen
FieldMathematics
TopicAdvanced Optimization Algorithms Research
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsSimplex algorithmSimplexAlgorithmComputationComputer scienceFunction (biology)Path (computing)Set (abstract data type)Gradient descentPattern searchMathematical optimizationMathematicsLinear programmingCombinatoricsArtificial intelligence

Abstract

fetched live from OpenAlex

A new difierence-assisted simplex-based algorithm which has signiflcant advantages in handling optimization problems with large dimensions is introduced. First, fundamental principles are utilized to illustrate a theorem that provides the basis for computation of the simplex-based difierences. Then, a set of new outside-expansion and inside-contraction points are deflned, and with the help of function values at these points, a bi-directional search pattern is constructed. The primary search direction is determined using the blended difierence information that is readily available at the outset of the analysis. In order to compensate for inaccuracies associated with the difierence-assisted descent path, a secondary search direction is also deflned with the help of the available information about function values. Examples are given to demonstrate the accuracy and e‐ciency of the new approach, and the performance of the algorithm in parallel environments is discussed.

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 score0.006
Threshold uncertainty score0.019

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 studies0.0000.001
Scholarly communication0.0010.001
Open science0.0020.002
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0060.003

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 head0.094
GPT teacher head0.388
Teacher spread0.295 · 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
Published2008
Admission routes1
Has abstractyes

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