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Record W4382005560 · doi:10.3934/dcdss.2023101

Robust QLM-SCFTK matrix approach applied to a biological population model of fractional order considering the carrying capacity

2023· article· en· W4382005560 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

VenueDiscrete and Continuous Dynamical Systems - S · 2023
Typearticle
Languageen
FieldMathematics
TopicFractional Differential Equations Solutions
Canadian institutionsUniversity of Victoria
Fundersnot available
KeywordsRobustness (evolution)MathematicsApplied mathematicsNonlinear systemMathematical optimizationAlgebraic equationMatrix (chemical analysis)PopulationFractional calculusCollocation (remote sensing)Convergence (economics)Computer science

Abstract

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Two effective and accurate matrix collocation techniques based on novel generalized shifted Chebyshev functions of the third kind (GSCFTK) are presented to examine the approximate solutions of a fractional-order population model considering the impact of carrying capacity. The fractional operator in the Liouville-Caputo sense is considered. The first direct technique is called the GSCFTK matrix procedure whereas the second one relied on the quasilinearization method and the GSCFTK matrix collocation strategy is called QLM-GSCFTK. In both approaches, the nonlinear population model is transformed into an algebraic system of equations. The resulting matrix equation is nonlinear in the first approach while is linear in the latter one, which is more efficient than the direct matrix method. The convergence analysis of the new generalized bases is established. To testify the robustness and effectiveness of the presented techniques, various numerical simulations are performed using diverse fractional orders. The results prove the applicability of the presented techniques of providing accurate results in comparison to other available numerical models and can be extended to other similar biological problems. Results also show that the numerical schemes are robust.

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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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.784
Threshold uncertainty score0.525

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.117
GPT teacher head0.302
Teacher spread0.185 · 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