Principles
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Claim Board — scientifically-declared inventory awaiting external contributors. Each stub is an open invitation: author the reference solver + dataset, open a PR, and earn the registration bounty. Not mineable until promoted to Tier 1/2 by 3-of-5 multisig.
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Problem classnonlinear_inverse (203)linear_inverse (197)parameter_estimation (62)linear_inverse_with_categorical_readout (18)statistical_inverse (5)forward (3)parametric_spectral_estimation (3)linear_inverse_count (3)
Noise modelgaussian (316)shot_poisson (80)poisson (28)observation_gaussian (13)poisson_gaussian (13)measurement_gaussian (10)lognormal (9)deterministic (7)
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| Title | ID | Chain | Domain | Tier | δ | L_DAG | Specs | Benchmarks |
|---|---|---|---|---|---|---|---|---|
| Hodgkin-Huxley Neuron Model Parameter Estimation | L1-396 | unregistered | Computational Biology | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| FitzHugh-Nagumo Excitability Model | L1-397 | unregistered | Computational Biology | 📋 Stub — not mineable | 3 | 2.5 | 0 | 0 |
| Cable Equation (Dendrite Propagation) | L1-398 | unregistered | Computational Biology | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Oxygen Transport (Krogh Cylinder) | L1-411 | unregistered | Computational Biology | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Advection-Dispersion Transport Inversion | L1-415 | unregistered | Environmental Science | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| River Hydraulics Shallow Water Inversion | L1-421 | unregistered | Environmental Science | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Linear State-Space System Analysis | L1-426 | unregistered | Control Theory | 📋 Stub — not mineable | 3 | 2.5 | 0 | 0 |
| Kalman Filter State Estimation | L1-427 | unregistered | Control Theory | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Extended Kalman Filter (EKF) | L1-428 | unregistered | Control Theory | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Unscented Kalman Filter (UKF) | L1-429 | unregistered | Control Theory | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| System Identification (N4SID/ARX) | L1-431 | unregistered | Control Theory | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| PID Controller Tuning | L1-434 | unregistered | Control Theory | 📋 Stub — not mineable | 3 | 2 | 0 | 0 |
| 4D-Var Data Assimilation | L1-435 | unregistered | Control Theory | 📋 Stub — not mineable | 5 | 4.5 | 0 | 0 |
| Ensemble Kalman Filter (EnKF) | L1-436 | unregistered | Control Theory | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Nonlinear Observer Design | L1-437 | unregistered | Control Theory | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Monte Carlo Option Pricing | L1-441 | unregistered | Computational Finance | 📋 Stub — not mineable | 3 | 2.5 | 0 | 0 |
| Forward Kinematics | L1-446 | unregistered | Robotics | 📋 Stub — not mineable | 3 | 2 | 0 | 0 |
| Forward Dynamics | L1-448 | unregistered | Robotics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Inverse Dynamics | L1-449 | unregistered | Robotics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Rigid Body Dynamics Simulation | L1-451 | unregistered | Robotics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Vehicle Dynamics (Bicycle Model) | L1-453 | unregistered | Robotics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Spacecraft Attitude Determination | L1-454 | unregistered | Robotics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Rotor Dynamics Aeroelastic Inversion | L1-456 | unregistered | Robotics | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| GNSS Positioning and Navigation | L1-466 | unregistered | Geodesy | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Satellite Orbit Determination | L1-467 | unregistered | Geodesy | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| LiDAR Point Cloud 3D Mapping | L1-469 | unregistered | Geodesy | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Photogrammetry Structure-from-Motion | L1-470 | unregistered | Geodesy | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| Satellite Gravity Gradiometry (GOCE) | L1-471 | unregistered | Geodesy | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Hyperspectral Spectral Unmixing | L1-472 | unregistered | Geodesy | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Radiometric Sensor Calibration | L1-473 | unregistered | Geodesy | 📋 Stub — not mineable | 3 | 2.5 | 0 | 0 |
| Charged Particle Track Reconstruction | L1-484 | unregistered | Particle Physics | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| Optimal Experimental Design | L1-500 | unregistered | Optimization | 📋 Stub — not mineable | 5 | 2.8 | 0 | 0 |
| Self-Consistent Field Theory (SCFT) | L1-475 | unregistered | Polymer Physics | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| de Gennes-Doi-Edwards Reptation Theory | L1-476 | unregistered | Polymer Physics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Oldroyd-B Viscoelastic Constitutive Model | L1-477 | unregistered | Polymer Physics | 📋 Stub — not mineable | 5 | 3.6 | 0 | 0 |
| DLVO Colloidal Force Theory | L1-478 | unregistered | Polymer Physics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Landau-de Gennes Liquid Crystal Theory | L1-479 | unregistered | Polymer Physics | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Drift-Diffusion Semiconductor Transport (TCAD) | L1-488 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| Hydrodynamic Semiconductor Transport | L1-489 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 5 | 4.2 | 0 | 0 |
| Non-Equilibrium Green's Function (NEGF) Quantum Transport | L1-491 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 10 | 4 | 0 | 0 |
| BSIM Compact MOSFET Model | L1-492 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Solar Cell Device Physics (Shockley-Queisser + drift-diffusion) | L1-493 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 3 | 3.4 | 0 | 0 |
| LED and Laser Rate Equations | L1-494 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Thermionic Emission at Metal-Semiconductor Interfaces | L1-495 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 3 | 3.1 | 0 | 0 |
| Quantum Well and Quantum Dot Electronic Structure | L1-496 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 5 | 3.6 | 0 | 0 |
| Phonon Boltzmann Transport Equation | L1-497 | unregistered | Semiconductor Physics | 📋 Stub — not mineable | 5 | 3.6 | 0 | 0 |
| Kohn-Sham Density Functional Theory | L1-294 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Hartree-Fock Self-Consistent Field | L1-295 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 3 | 3.1 | 0 | 0 |
| Post-Hartree-Fock Correlated Methods (MP2, CCSD, CI) | L1-296 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 10 | 4 | 0 | 0 |
| Time-Dependent Density Functional Theory (TDDFT) | L1-297 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 5 | 3.6 | 0 | 0 |
| Chemical Kinetics via Stiff ODEs | L1-300 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Combustion Chemistry and Ignition Kinetics | L1-301 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Michaelis-Menten Enzyme Kinetics | L1-302 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 1 | 2.5 | 0 | 0 |
| Eyring Transition State Theory | L1-303 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 5 | 3.4 | 0 | 0 |
| Semi-Empirical Quantum Chemistry (AM1, PM6, DFTB, xTB) | L1-304 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Implicit Solvation Models (PCM, COSMO, SMD) | L1-305 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Metropolis Monte Carlo | L1-310 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Butler-Volmer Electrochemical Kinetics | L1-311 | unregistered | Computational Chemistry | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Time-Independent Schrödinger Equation | L1-312 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 5 | 3 | 0 | 0 |
| Time-Dependent Schrödinger Equation | L1-313 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Quantum Tunneling Through Barriers | L1-315 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Electronic Band Structure | L1-316 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Phonon Dispersion Relations | L1-317 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Tight-Binding Electronic Structure | L1-318 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| GW Approximation for Quasiparticle Energies | L1-319 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 10 | 4 | 0 | 0 |
| Bethe-Salpeter Equation for Excitons | L1-320 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 10 | 4.2 | 0 | 0 |
| Density Matrix Renormalization Group (DMRG) | L1-322 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 10 | 3.8 | 0 | 0 |
| Exact Diagonalization of Many-Body Hamiltonians | L1-323 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Lindblad Master Equation (Open Quantum Systems) | L1-324 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Electron-Phonon Coupling and Eliashberg Theory | L1-325 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 10 | 3.9 | 0 | 0 |
| k.p Perturbation Theory | L1-326 | unregistered | Quantum Mechanics | 📋 Stub — not mineable | 3 | 3.1 | 0 | 0 |
| Phase-Field Allen-Cahn Dynamics | L1-327 | unregistered | Materials Science | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Cahn-Hilliard Phase Separation | L1-328 | unregistered | Materials Science | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| CALPHAD Thermodynamic Modeling | L1-329 | unregistered | Materials Science | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Discrete Dislocation Dynamics | L1-330 | unregistered | Materials Science | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Grain Growth and Recrystallization | L1-331 | unregistered | Materials Science | 📋 Stub — not mineable | 3 | 3.1 | 0 | 0 |
| Solid-State Diffusion (Fick + Onsager) | L1-333 | unregistered | Materials Science | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Dendritic Solidification | L1-334 | unregistered | Materials Science | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Flory-Huggins Polymer Solution Theory | L1-335 | unregistered | Materials Science | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Rubber Elasticity Theory | L1-336 | unregistered | Materials Science | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Electrochemical Corrosion Kinetics | L1-339 | unregistered | Materials Science | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Battery Electrode Electrochemistry (Newman-Doyle-Fuller) | L1-340 | unregistered | Materials Science | 📋 Stub — not mineable | 5 | 4.1 | 0 | 0 |
| Additive Manufacturing (Selective Laser Melting) Thermal Model | L1-341 | unregistered | Materials Science | 📋 Stub — not mineable | 5 | 3.9 | 0 | 0 |
| Polarization Microscopy (Stokes / birefringence imaging) | L1-013 | unregistered | Microscopy | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Zernike Phase-Contrast Microscopy | L1-017 | unregistered | Microscopy | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Differential Interference Contrast (DIC / Nomarski) Microscopy | L1-018 | unregistered | Microscopy | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| Darkfield Microscopy (oblique-illumination scattering imaging) | L1-019 | unregistered | Microscopy | 📋 Stub — not mineable | 1 | 2.2 | 0 | 0 |
| Single-Pixel Imaging (random basis compressive sensing) | L1-026 | unregistered | Compressive Imaging | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Low-Rank Matrix Sensing (compressive matrix recovery) | L1-028 | unregistered | Compressive Imaging | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Magnetic Resonance Imaging (MRI) — proton-density / T1 / T2 contrast | L1-030 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.6 | 0 | 0 |
| Clinical B-mode Ultrasound | L1-032 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| Photoacoustic Tomography (PAT) | L1-041 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 4.2 | 0 | 0 |
| Optical Coherence Tomography (OCT) | L1-042 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| Functional MRI (BOLD) | L1-043 | unregistered | Medical Imaging | 📋 Stub — not mineable | 10 | 4 | 0 | 0 |
| Magnetic Resonance Spectroscopy (MRS) | L1-044 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Diffusion MRI (DWI / DTI / HARDI) | L1-045 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Doppler Ultrasound (color / spectral) | L1-046 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Elastography (Shear-Wave / Strain) | L1-047 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Fiber-Optic Endoscopy | L1-048 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Fundus Imaging (retinal photography) | L1-049 | unregistered | Medical Imaging | 📋 Stub — not mineable | 1 | 2.2 | 0 | 0 |
| OCT Angiography (OCTA) | L1-050 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| Brachytherapy Dose Imaging | L1-052 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Magnetic Resonance Elastography (MRE) | L1-055 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| Chemical Exchange Saturation Transfer (CEST) MRI | L1-056 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Arterial Spin Labeling (ASL) MRI | L1-057 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| MR Angiography (time-of-flight / phase-contrast) | L1-058 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.4 | 0 | 0 |
| Susceptibility-Weighted Imaging (SWI) | L1-059 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| MR Fingerprinting (MRF) | L1-060 | unregistered | Medical Imaging | 📋 Stub — not mineable | 10 | 4.5 | 0 | 0 |
| Intravascular Ultrasound (IVUS) | L1-061 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Contrast-Enhanced Ultrasound (CEUS) | L1-062 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Functional Near-Infrared Spectroscopy (fNIRS) | L1-065 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Electrical Impedance Tomography (EIT) | L1-066 | unregistered | Medical Imaging | 📋 Stub — not mineable | 10 | 4.5 | 0 | 0 |
| Magnetoencephalography (MEG) | L1-067 | unregistered | Medical Imaging | 📋 Stub — not mineable | 10 | 4.5 | 0 | 0 |
| Electroencephalography (EEG) | L1-068 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| Magnetic Particle Imaging (MPI) | L1-069 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| Quantitative Susceptibility Mapping (QSM) | L1-503 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 7.4 | 0 | 0 |
| Quantitative Photoacoustic Tomography (qPAT) | L1-504 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 8.5 | 0 | 0 |
| Hyperpolarized 13C Metabolic MRI | L1-506 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 10.4 | 0 | 0 |
| Joint MEG-EEG Source Imaging | L1-507 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 10 | 0 | 0 |
| Optical Coherence Elastography (OCE) | L1-508 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 8.4 | 0 | 0 |
| Photoacoustic-Ultrasound Dual-mode Imaging (PAUS) | L1-509 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 9.5 | 0 | 0 |
| Cardiac 4D-flow MRI with Hemodynamic Biomechanics | L1-510 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 8.3 | 0 | 0 |
| PillCam-SPECTRA Optical-Property Recovery (analytical core) | L1-511 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 4.9 | 0 | 0 |
| PillCam-SPECTRA Bleeding-Region Detection (PWDR) | L1-512 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 6.9 | 0 | 0 |
| Diabetic Retinopathy Grading from Fundus Imaging (PWDR) | L1-513 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 5 | 0 | 0 |
| MR Spectroscopy Tumor Grading (PWDR) | L1-516 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 5.9 | 0 | 0 |
| Dermoscopy Skin Lesion Malignancy Classification (PWDR) | L1-517 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 4.9 | 0 | 0 |
| Glaucoma Optic-Disc Cupping Classification (PWDR) | L1-529 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 5.6 | 0 | 0 |
| Age-Related Macular Degeneration OCT Grading (PWDR) | L1-530 | unregistered | Medical Imaging | 📋 Stub — not mineable | 3 | 5.6 | 0 | 0 |
| EEG Seizure Detection (PWDR) | L1-531 | unregistered | Medical Imaging | 📋 Stub — not mineable | 5 | 6 | 0 | 0 |
| Optical Diffraction Tomography (ODT) — 3D refractive-index imaging | L1-073 | unregistered | Coherent Imaging | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Lensless Imaging with Diffuser PSF (DiffuserCam) | L1-075 | unregistered | Computational Photography | 📋 Stub — not mineable | 3 | 2.6 | 0 | 0 |
| Multi-Focus / Panorama Fusion (all-in-focus composite imaging) | L1-076 | unregistered | Computational Photography | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Coded-Exposure Imaging for Motion Deblur | L1-077 | unregistered | Computational Photography | 📋 Stub — not mineable | 3 | 2.5 | 0 | 0 |
| Light-Field (Plenoptic) Imaging | L1-080 | unregistered | Computational Optics | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Integral Photography (Lippmann-style MLA capture + reconstruction) | L1-081 | unregistered | Computational Optics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Neural Radiance Fields (NeRF) — implicit volumetric scene representation | L1-082 | unregistered | Computational Optics | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| 3D Gaussian Splatting (3DGS) — explicit real-time rendering | L1-083 | unregistered | Computational Optics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Structured-Light 3D Imaging (projector-camera triangulation) | L1-097 | unregistered | Depth Imaging | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Photometric Stereo (shape-from-shading with multiple light directions) | L1-098 | unregistered | Depth Imaging | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Active Sonar — underwater acoustic imaging | L1-101 | unregistered | Remote Sensing | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| Hyperspectral Imaging (pushbroom / AVIRIS-style) | L1-102 | unregistered | Remote Sensing | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Multispectral Imaging (Landsat/Sentinel-2) | L1-103 | unregistered | Remote Sensing | 📋 Stub — not mineable | 1 | 2.5 | 0 | 0 |
| Ground Penetrating Radar (GPR) | L1-104 | unregistered | Remote Sensing | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| Doppler Weather Radar | L1-105 | unregistered | Remote Sensing | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Very Long Baseline Interferometry (VLBI) | L1-106 | unregistered | Remote Sensing | 📋 Stub — not mineable | 10 | 4.5 | 0 | 0 |
| Passive Microwave Radiometry | L1-107 | unregistered | Remote Sensing | 📋 Stub — not mineable | 3 | 2.7 | 0 | 0 |
| Ocean Color Remote Sensing (chlorophyll / CDOM / TSM) | L1-110 | unregistered | Remote Sensing | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| Phased-Array Ultrasonic Testing (PAUT) | L1-113 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| Eddy-Current Testing (near-surface metallic defect detection) | L1-114 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| Active Thermography (pulsed / lock-in IR inspection) | L1-115 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Terahertz Imaging (0.1-10 THz time-domain / CW) | L1-116 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Automated Optical Inspection (AOI) for PCB / manufacturing defects | L1-117 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 1 | 2.5 | 0 | 0 |
| Shearography (ESPI-based strain imaging) | L1-119 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Scanning Acoustic Microscopy (SAM) | L1-120 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Magnetic Flux Leakage (MFL) — pipeline & rail inspection | L1-121 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Guided-Wave Ultrasonic Testing (long-range pipe/rail inspection) | L1-122 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 5 | 3.6 | 0 | 0 |
| Digital Image Correlation (DIC) for full-field strain | L1-123 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Vibration-Based Damage Detection (modal analysis NDT) | L1-124 | unregistered | Industrial Inspection | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Pump-Probe Spectroscopy / Imaging | L1-150 | unregistered | Ultrafast Imaging | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| PET-CT Fusion (metabolism + anatomy) | L1-156 | unregistered | Multimodal Fusion | 📋 Stub — not mineable | 3 | 3.5 | 0 | 0 |
| PET-MR Fusion (molecular + multi-contrast soft tissue) | L1-157 | unregistered | Multimodal Fusion | 📋 Stub — not mineable | 5 | 3.8 | 0 | 0 |
| SPECT-CT Fusion | L1-158 | unregistered | Multimodal Fusion | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| US-MRI Fusion (biopsy guidance / cardiac) | L1-159 | unregistered | Multimodal Fusion | 📋 Stub — not mineable | 5 | 4 | 0 | 0 |
| Atomic Force Microscopy (AFM) | L1-162 | unregistered | Scanning Probe | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Scanning Tunneling Microscopy (STM) | L1-163 | unregistered | Scanning Probe | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Magnetic Force Microscopy (MFM) | L1-165 | unregistered | Scanning Probe | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Ideal MHD — magnetohydrodynamics infinite-conductivity limit | L1-342 | unregistered | Plasma Physics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Resistive MHD — finite-resistivity plasma | L1-343 | unregistered | Plasma Physics | 📋 Stub — not mineable | 10 | 3.7 | 0 | 0 |
| Vlasov Equation — collisionless kinetic plasma | L1-344 | unregistered | Plasma Physics | 📋 Stub — not mineable | 10 | 3.8 | 0 | 0 |
| Gyrokinetic — 5D reduced plasma kinetic | L1-345 | unregistered | Plasma Physics | 📋 Stub — not mineable | 10 | 3.8 | 0 | 0 |
| Fokker-Planck — Coulomb-collision kinetic | L1-347 | unregistered | Plasma Physics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Grad-Shafranov — tokamak equilibrium | L1-348 | unregistered | Plasma Physics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| MHD Stability — linear eigenmode growth rates | L1-349 | unregistered | Plasma Physics | 📋 Stub — not mineable | 5 | 3 | 0 | 0 |
| Plasma Sheath — Debye-scale boundary layer | L1-350 | unregistered | Plasma Physics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| RF Heating — ICRF / LH / ECH wave absorption | L1-351 | unregistered | Plasma Physics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Hall MHD — ion-scale physics in reconnection | L1-353 | unregistered | Plasma Physics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Point Reactor Kinetics — power transient modeling | L1-357 | unregistered | Nuclear Engineering | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Burnup / Depletion — fuel nuclide evolution | L1-358 | unregistered | Nuclear Engineering | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Reactor Thermal-Hydraulics — coupled T/H with neutronics | L1-359 | unregistered | Nuclear Engineering | 📋 Stub — not mineable | 5 | 3.7 | 0 | 0 |
| Nuclear Data — R-matrix resonance evaluation | L1-362 | unregistered | Nuclear Engineering | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Decay Heat — residual power after reactor shutdown | L1-363 | unregistered | Nuclear Engineering | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Incompressible Navier-Stokes — low-Mach viscous flow | L1-170 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Compressible Navier-Stokes — viscous shock/boundary-layer | L1-171 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.7 | 0 | 0 |
| Euler Equations — inviscid compressible | L1-172 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Stokes Flow — low-Re linear viscous | L1-173 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Boundary Layer — Prandtl / Blasius near-wall flow | L1-174 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Potential Flow — irrotational inviscid | L1-175 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| RANS k-epsilon — turbulence closure | L1-176 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| RANS k-omega SST — Menter's two-eq turbulence model | L1-177 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Spalart-Allmaras — one-eq turbulence model | L1-178 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3.2 | 0 | 0 |
| LES — large-eddy simulation | L1-179 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 10 | 3.8 | 0 | 0 |
| DNS — direct numerical simulation | L1-180 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 10 | 3.5 | 0 | 0 |
| Shallow Water Equations — coastal/tidal/inundation | L1-181 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Boussinesq Approximation — buoyant flow | L1-182 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Volume of Fluid (VOF) — multiphase interface tracking | L1-183 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Level-Set Method — implicit interface evolution | L1-184 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Eulerian-Lagrangian — dispersed-phase particle tracking | L1-185 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| SPH — smoothed particle hydrodynamics | L1-186 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Lattice Boltzmann Method (LBM) — mesoscale fluid | L1-187 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Darcy Flow — low-Re porous-medium flow | L1-188 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Richards Equation — unsaturated variably-saturated flow | L1-189 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Advection-Diffusion — scalar transport | L1-190 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Convection-Diffusion-Reaction — transport with source terms | L1-191 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Buckley-Leverett — two-phase displacement saturation | L1-192 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Stefan Problem — fluid-side melt-front tracking | L1-193 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Fluid-Structure Interaction (FSI) — coupled fluid + solid | L1-194 | unregistered | Fluid Dynamics | 📋 Stub — not mineable | 10 | 4 | 0 | 0 |
| Transient Heat Conduction — inverse heat conduction (IHCP) | L1-195 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3 | 0 | 0 |
| Steady Heat Conduction — conductivity imaging | L1-196 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Forced Convection — conjugate heat transfer inversion | L1-197 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Natural Convection — buoyancy-driven flow heat transfer | L1-198 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Radiative Transfer Equation — radiative heat exchange | L1-199 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Participating Media — RTE with gas/soot emission-absorption | L1-200 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.7 | 0 | 0 |
| Conjugate Heat Transfer — coupled fluid-solid thermal | L1-201 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Phase Change Material — Stefan moving-boundary problem | L1-202 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Thermoelectric Transport — coupled Seebeck-Peltier | L1-203 | unregistered | Heat Transfer | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Thermal Contact Resistance — interface conductance estimation | L1-204 | unregistered | Heat Transfer | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Laser Heating — short-pulse temperature rise inversion | L1-205 | unregistered | Heat Transfer | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Cryogenic Storage Boiloff — MLI heat-leak estimation | L1-206 | unregistered | Heat Transfer | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Linear Elasticity — Navier-Cauchy 3D solid mechanics | L1-207 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Euler-Bernoulli Beam — thin-beam bending | L1-208 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Timoshenko Beam — shear-deformation thick-beam | L1-209 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Kirchhoff Plate — thin-plate bending | L1-210 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Mindlin-Reissner Plate — thick-plate with shear | L1-211 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Shell Theory — curved thin-structure mechanics | L1-212 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Modal Analysis — natural frequencies and mode shapes | L1-213 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Linear Buckling — eigenvalue stability analysis | L1-214 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Hyperelasticity — large-deformation rubber-like | L1-215 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| J2 Plasticity — von Mises rate-independent | L1-216 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Crystal Plasticity — slip-system resolved plasticity | L1-217 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 10 | 3.8 | 0 | 0 |
| Viscoelasticity — linear hereditary models | L1-218 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Creep Mechanics — high-temperature rate-dependent | L1-219 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Linear Elastic Fracture Mechanics (LEFM) — K/J evaluation | L1-220 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Cohesive Zone Model — traction-separation interface | L1-221 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| XFEM — extended finite element for cracks | L1-222 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Phase-Field Fracture — regularized crack model | L1-223 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Fatigue — Paris law crack growth | L1-224 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Hertzian Contact — elastic sphere/cylinder contact | L1-225 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Frictional Contact — Coulomb / state-rate friction | L1-226 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Poroelasticity — Biot coupled solid/fluid | L1-227 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Thermoelasticity — coupled thermal-mechanical | L1-228 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Piezoelectricity — coupled mechanical-electrical | L1-229 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Elastodynamics — dynamic wave propagation in solids | L1-230 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Continuum Damage Mechanics — scalar/tensor damage | L1-231 | unregistered | Structural Mechanics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Maxwell Full-Wave — time-domain 3D Maxwell equations | L1-232 | unregistered | Electromagnetics | 📋 Stub — not mineable | 10 | 3.8 | 0 | 0 |
| Helmholtz Scattering — frequency-domain EM scattering | L1-233 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| FDTD — finite-difference time-domain Maxwell | L1-234 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Method of Moments (MoM) — integral-equation EM | L1-235 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Antenna Analysis — radiation pattern inversion | L1-236 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Radar Cross-Section — backscatter reconstruction | L1-237 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Eddy Currents — conductor inversion from induced fields | L1-238 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Waveguide Modes — dispersion and S-parameter analysis | L1-239 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Fiber Optic — nonlinear Schrodinger pulse propagation | L1-240 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Fresnel Diffraction — paraxial wave propagation | L1-241 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Geometric Optics — ray tracing / eikonal | L1-242 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Mie Scattering — rigorous spherical-particle scattering | L1-243 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Rayleigh Scattering — molecular / small-particle scattering | L1-244 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Thin Film Interference — transfer-matrix optical design | L1-245 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Holographic Reconstruction — wavefront from interference | L1-246 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Photonic Inverse Design — nanostructure topology optimization | L1-248 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Metamaterial / Metasurface — effective medium inversion | L1-249 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Electrostatics — Poisson equation inversion | L1-250 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Magnetostatics — coil design and field inversion | L1-251 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Inverse Synthetic Aperture Radar (ISAR) — rotating-target imaging | L1-252 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Ray Tracing (EM) — wireless propagation model | L1-253 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3.3 | 0 | 0 |
| Microwave Imaging — permittivity imaging for biomed/NDE | L1-255 | unregistered | Electromagnetics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| THz Time-Domain Spectroscopy — material parameter extraction | L1-256 | unregistered | Electromagnetics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Acoustic Wave Equation — time-domain pressure field reconstruction | L1-257 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Helmholtz Equation — frequency-domain acoustic scattering / interior field | L1-258 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Room Acoustics — ray-tracing impulse response | L1-259 | unregistered | Acoustics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Room Acoustics — image-source method (shoebox rooms) | L1-260 | unregistered | Acoustics | 📋 Stub — not mineable | 3 | 2.8 | 0 | 0 |
| Acoustic Scattering — boundary element method (BEM) | L1-261 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Underwater Acoustic Ray Tracing (Bellhop) | L1-262 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Underwater Normal Modes — modal propagation (KRAKEN) | L1-263 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3 | 0 | 0 |
| Underwater Acoustics — Parabolic Equation (RAM) | L1-264 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Acoustic Beamforming — DOA & imaging from array | L1-265 | unregistered | Acoustics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Structural Vibration Analysis — modal response | L1-266 | unregistered | Acoustics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Acoustic Emission — source localization | L1-267 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Vibroacoustics — structure-acoustic coupling | L1-268 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Duct Acoustics — wave propagation in ducts / silencers | L1-269 | unregistered | Acoustics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Aeroacoustics — Lighthill analogy (jet/airframe noise) | L1-270 | unregistered | Acoustics | 📋 Stub — not mineable | 10 | 3.8 | 0 | 0 |
| Outdoor Noise Propagation — atmospheric refraction + ground effect | L1-271 | unregistered | Acoustics | 📋 Stub — not mineable | 5 | 3.7 | 0 | 0 |
| Seismic Travel-Time Tomography — ray-based velocity imaging | L1-272 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Full Waveform Inversion (FWI) — subsurface velocity imaging | L1-273 | unregistered | Geophysics | 📋 Stub — not mineable | 50 | 4.5 | 0 | 0 |
| Surface Wave Dispersion — shallow Vs profile inversion | L1-274 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Receiver Function — teleseismic crust imaging | L1-275 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Seismic Reflection — post-stack migration and imaging | L1-276 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Ambient-Noise Tomography — Green-function retrieval | L1-277 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Earthquake Source Inversion — finite-fault slip | L1-278 | unregistered | Geophysics | 📋 Stub — not mineable | 10 | 3.7 | 0 | 0 |
| Gravity Field Inversion — density imaging | L1-279 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3 | 0 | 0 |
| Magnetic Field Inversion — susceptibility imaging | L1-280 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3 | 0 | 0 |
| Magnetotelluric Inversion — resistivity imaging | L1-281 | unregistered | Geophysics | 📋 Stub — not mineable | 10 | 3.7 | 0 | 0 |
| Controlled-Source EM (CSEM) — resistivity for hydrocarbons | L1-282 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Electrical Resistivity Tomography (ERT) — near-surface | L1-283 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.2 | 0 | 0 |
| Induced Polarization — chargeability imaging | L1-284 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Satellite Gravity Recovery — GRACE/GRACE-FO mass change | L1-285 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Mantle Convection — high-Ra thermal convection | L1-286 | unregistered | Geophysics | 📋 Stub — not mineable | 10 | 4 | 0 | 0 |
| Glacial Isostatic Adjustment (GIA) — post-glacial rebound | L1-287 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Volcanic Deformation — InSAR/GPS source modeling | L1-288 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Tsunami Propagation — shallow-water wave simulation | L1-289 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.3 | 0 | 0 |
| Geothermal Reservoir — coupled thermo-hydraulic inversion | L1-290 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 3.5 | 0 | 0 |
| Well Test Analysis — transient pressure testing | L1-291 | unregistered | Geophysics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Tidal Analysis — harmonic tidal constituent extraction | L1-292 | unregistered | Geophysics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Subsurface Temperature — geothermal gradient inversion | L1-293 | unregistered | Geophysics | 📋 Stub — not mineable | 3 | 3 | 0 | 0 |
| Earthquake Magnitude Classification (PWDR) | L1-522 | unregistered | Geophysics | 📋 Stub — not mineable | 5 | 6.3 | 0 | 0 |
| Image Deblurring (non-blind and blind deconvolution) | L1-382 | unregistered | Signal Processing | 📋 Stub — not mineable | 3 | 2 | 0 | 0 |
| Image Super-Resolution (single-image) | L1-383 | unregistered | Signal Processing | 📋 Stub — not mineable | 3 | 2.7 | 0 | 0 |
| Image Inpainting (masked region recovery) | L1-384 | unregistered | Signal Processing | 📋 Stub — not mineable | 3 | 2 | 0 | 0 |
| Compressed Sensing (random-projection linear inverse) | L1-386 | unregistered | Signal Processing | 📋 Stub — not mineable | 3 | 2.3 | 0 | 0 |
| Blind Source Separation (ICA / cocktail-party problem) | L1-388 | unregistered | Signal Processing | 📋 Stub — not mineable | 5 | 2.2 | 0 | 0 |
| Sparse Signal Recovery (analysis / synthesis sparsity) | L1-391 | unregistered | Signal Processing | 📋 Stub — not mineable | 3 | 2.7 | 0 | 0 |
| Matrix Completion (low-rank recovery from partial entries) | L1-392 | unregistered | Signal Processing | 📋 Stub — not mineable | 3 | 2 | 0 | 0 |
| Adaptive Filtering (LMS / RLS time-varying system identification) | L1-395 | unregistered | Signal Processing | 📋 Stub — not mineable | 2 | 2.3 | 0 | 0 |
| ECG Arrhythmia Classification (PWDR) | L1-528 | unregistered | Signal Processing | 📋 Stub — not mineable | 3 | 5.9 | 0 | 0 |
| FTIR Imaging — Fourier-Transform Infrared Hyperspectral Microscopy | L1-140 | unregistered | Spectroscopy | 📋 Stub — not mineable | 3 | 2.7 | 0 | 0 |
| UV-Vis Spectroscopy / Imaging (electronic absorption) | L1-145 | unregistered | Spectroscopy | 📋 Stub — not mineable | 1 | 2 | 0 | 0 |