VARA-PINNexact
Live Preview, Result Rechecks, And Submission Packaging
Kovasznay: five-seed reductions of roughly 33-46 percent.
progress update · 2 min34 public entries
Research log.
A chronological record of experiments, technical notes, results, and research decisions across VARA-PINN and SafeGraph-CAV.
Dates may be exact, approximate, reconstructed, or mixed. Every entry carries its source range and review date.
34 of 34 public entries
July 2026
2 entriesJune 2026
27 entriesVARA-PINNexact
Cahn-Hilliard Stress Test And End Of Tracked Development
An independent split-form Cahn-Hilliard suite was added.
progress update · 2 minVARA-PINNexact
First Complete EAAI Manuscript And Statistical Consolidation
Processed datasets and scripts were assembled for the paper: Kovasznay five- seed summaries, cavity Re=100 five-seed metrics, Reynolds continuation, controller sensitivity, runtime overhead, variable-awareness ablation, Allen-Cahn and advection-diffusion results, and a Reynolds stress-test trace.
progress update · 2 minVARA-PINNexact
Taylor-Green Repair And PDE Generalization
The isolated Taylor-Green VARA V2 wiring was repaired and evaluation was optimized.
progress update · 2 minSafeGraph-CAVapproximate
Representative trajectories, trust heatmap, and diagnostic integrity
Representative-run plots were added for inter-vehicle gaps, spacing errors, velocities, and accelerations.
progress update · 2 minSafeGraph-CAVapproximate
SUMO/TraCI integrated validation
The SUMO scenario used a straight two-lane road, five CAVs, a 0.05 s simulation step, a 120 s horizon, vehicle length 4.8 m, maximum speed 33.33 m/s, maximum acceleration 2.5 m/s2, and maximum deceleration 4.5 m/s2.
progress update · 2 minSafeGraph-CAVexactnegative resultfeatured
Invalid communication-noise sweep discovered and excluded
An initial communication-noise sensitivity sweep was found to be invalid because the intended configuration keys did not actually change the experimental conditions.
progress update · 2 minSafeGraph-CAVmixed
Scalability, headway, delay, trust robustness, and latency diagnostics
The sensitivity suite was extended across platoon size N = 4, 6, 8, 12, and 16.
progress update · 2 minSafeGraph-CAVapproximate
Statistical validation and paired comparisons
Bootstrap 95 percent confidence intervals were computed for the main held-out metrics.
progress update · 2 minSafeGraph-CAVapproximatefeatured
Main held-out benchmark and the central empirical result
The held-out benchmark established the main result.
progress update · 2 minSafeGraph-CAVapproximate
Held-out protocol, metrics, and reproducibility design
The main benchmark was organized around disjoint training and evaluation seeds.
progress update · 2 minVARA-PINNexact
No-Variable-Awareness Ablation
A V2 ablation removed variable identity while retaining regional adaptation.
progress update · 2 minSafeGraph-CAVapproximatefeatured
Runtime shield implementation and interpretation
TTC_i = g_i / max(v_i - v_(i-1), epsilon).
progress update · 2 minVARA-PINNexactnegative result
Sparse CFD Reconstruction And A Long Debugging Cycle
The lid-band momentum coupling was fixed.
progress update · 2 minSafeGraph-CAVapproximate
Baseline suite and the need to decompose the contribution
Raw CACC using communicated predecessor states directly.
progress update · 2 minSafeGraph-CAVapproximate
Designing the physics-guided trust estimator
The trust estimator was designed to combine learning with physical structure without making exaggerated claims about formal guarantees.
progress update · 2 minVARA-PINNexactnegative result
Cavity Formulation Crisis And Rebalancing
This was an intensive cavity-debugging day.
progress update · 2 minSafeGraph-CAVapproximatefeatured
Formalizing the threat model and attack generator
The communication attack suite was expanded beyond basic false-data injection.
progress update · 2 minSafeGraph-CAVexactnegative result
Repository setup, naming, import failure, and infrastructure repair
The repository was organized under /content/trustgraph-platoon during Colab development.
progress update · 2 minSafeGraph-CAVexactnegative result
SUMO/TraCI setup and the netgenerate failure
SUMO was installed in the Colab/Linux environment.
progress update · 2 minVARA-PINNexactnegative result
Near-Wall Repair And Low-Reynolds Stabilization
Near-wall cavity repair was integrated with VARA V2.
progress update · 2 minSafeGraph-CAVmixed
Architecture fixed around edge trust, trust-weighted CACC, and shielding
By this point the research direction was explicitly described as physics-guided graph trust, runtime shielding, attack detection/prevention, and platoon safety.
progress update · 2 minVARA-PINNexactnegative result
Hard-Boundary Streamfunction Formulation
A hard-boundary streamfunction-pressure cavity formulation was introduced and then stabilized.
progress update · 2 minSafeGraph-CAVapproximate
Scoping the problem and defining a defensible contribution
The foundational control background was organized around constant-time-headway platooning.
progress update · 2 minVARA-PINNexactfeatured
Generalized VARA Controller V2
VARA V2 was introduced as an opt-in controller without changing V1 configs or legacy runs.
progress update · 2 minSafeGraph-CAVmixed
Initial research direction: from attack detection to safe closed-loop control
The project began from an interest in cyber-resilient connected and automated vehicles, specifically longitudinal vehicle platooning under unreliable or adversarial vehicle-to-vehicle communication.
progress update · 2 minVARA-PINNexact
Reynolds Continuation, Full-Field References, And Fairness Studies
A method-isolated Reynolds-continuation workflow was created for the cavity.
progress update · 2 minVARA-PINNexact
Guarded Final Repair And RAR Baseline
A guarded final physics-repair phase was added to recover physics consistency after adaptive training.
progress update · 2 minMay 2026
5 entriesVARA-PINNexactnegative result
Patch-Aware Cavity Control And Optimizer-Schedule Caution
A cavity patch-aware local controller was added and merged.
progress update · 2 minVARA-PINNexactnegative resultfeatured
Reference-Free Cavity Control And The First Major Revert
The profile-aware cavity controller was corrected so the Ghia reference stayed evaluation-only.
progress update · 2 minVARA-PINNexactfeatured
Five-Seed Kovasznay Evidence And Benchmark Expansion
The first repeated experiment was consolidated into five-seed Kovasznay raw and summary CSVs.
progress update · 2 minVARA-PINNexactfeatured
First Complete VARA-PINN V3 Codebase
The Kovasznay prototype was converted into a full research repository.
progress update · 2 minVARA-PINNapproximatefeatured
Origin of the idea
The practical starting point was a Kovasznay-flow PINN notebook.
progress update · 3 min