P
Physics World Model
← All principles

SEIR Epidemic with Exposed Compartment L1-406

Computational BiologyEpidemiologyδ=3 · standardL_DAG = 2.8📋 Stub — not mineable
📋

Unclaimed Principle — open for contribution

This Principle is declared in the catalog but has no reference solver, no pinned dataset, and is not registered on-chain. There is no reward pool. Submitting a cert against this Principle today will record the cert for reproducibility but pay zero PWM.

To claim it as a Bounty #7 contribution: open a PR adding (1) a reference solver, (2) ≥1 dataset pinned to IPFS, (3) updates to the L3 manifest with dataset CIDs. After verifier-agent triple-review, the founders' 3-of-5 multisig signs PWMRegistry.register() and the Principle becomes mineable.

Forward model E

SEIR Epidemic with Exposed Compartment: SEIR model: adds exposed/latent compartment E accounting for incubation period before infectiousness. The forward operator produces the measurement through a 3-node primitive DAG (M.ode.seir_model…); recovery is posed as a parameter_estimation problem. Difficulty tier delta=3 with effective condition number kappa_eff~80; age_structure_neglect, spatial_heterogeneity set the accuracy floor at the Omega boundary. See the forward_model field for the closed-form equation.

L-DAG

D.time -> O.likelihood.seir_incidence -> S.mcmc.seir_posterior
D.timeO.likelihood.seir_incidenceS.mcmc.seir_posterior

Well-posedness W

Existence:
true
Uniqueness:
true
Stability:
conditional
κ:
2000

Existence of the recovered SEIR_parameter_vector is guaranteed within the declared Omega bounds. Uniqueness holds on the measurement-supported subspace; out-of-support modes are controlled by declared priors. Stability is conditionally stable (kappa_eff ~= 80); age_structure_neglect dominates the stability cliff; the remaining mismatch parameters contribute higher-order bias terms. Negative binomial sets the irreducible data-fidelity floor.

Solvability C

Solver class:
statistical [MCMC_SEIR or particle_filter_sequential]
Convergence rate q:
2
Complexity:
O(N_days * N_MCMC) per fit per iteration

Specs (0)

No L2 specs registered yet for this principle.