Kenneth Cheng · Macau

Mathematical models for real systems.

From pattern formation and nonlinear mechanics to scientific institutions, reliability, and experimental design: reproducible computation, explicit assumptions, and honest limits turn models into testable research questions.

Latest writing

Question, verification, and limitation belong in the same article.

Every research article is manually written from verified private ScienceProject results and supported by approved figures, numerical checks, negative findings, claim boundaries, and references.

Research figure for What Must a Traffic Model Remember?

26 Sept 2026Research note

What Must a Traffic Model Remember?

A controlled ring-road study separates hidden velocity, projection-induced memory, noisy observation, and numerical sensitivity, asking when a better traffic forecast also gives a better stability diagnosis.

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Research figure for Did the Hotspot Move, or Did It Grow?

19 Sept 2026Research note

Did the Hotspot Move, or Did It Grow?

Two spatial maps can share a convincing least-cost explanation without revealing the history that produced them. A controlled unbalanced optimal transport study separates endpoint fit, numerical convergence and evidence for movement versus local growth.

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Selected research

Evidence before volume

Only projects with a clear question, reviewed figures, and visible assumptions and limitations appear here.

Constructed four-node example: the highest proxy score and highest expected gain select different edges.
Manuscript in preparation2026

CUT-AUDIT-ER: When the Highest Score Is Not the Best Repair

A study of verification-only entity repair separates finding the highest score from choosing a useful repair, and fewer complete evaluations from lower total cost.

Structural analysis · Constructed controls · Natural-data diagnostics

Entity resolutionGraph repair
Research figure for How Rare Is a Flip?
Reproducible study2026

How Rare Is a Flip?

A reproducible Phase-1 study checks a synthetic low-copy exclusive genetic toggle with an error-bounded finite-state reference and seeded direct SSA.

Stochastic reaction networksGenetic toggles
Research figure for Topology at the Edge of Resolution
Reproducible study2026

Topology at the Edge of Resolution

A controlled false-threshold audit of melt-pond connectivity under blur, downsampling, segmentation error, finite windows, and morphology shift.

Arctic Sea IceTopological Data Analysis