Complex-manifold (Kähler) structures for statistical models
Investigate the Fisher–Rao geometry of parametric statistical models M={p_θ: θ∈Θ} as complex manifolds when the model order is even, including the existence and properties of associated Kähler structures.
References
Finally, let us list some open problems: Problem 4. Study $M={p_\theta:\theta\in\Theta}$ as a complex manifold instead of a real manifold when the statistical model $m$ is of even order. See preliminary work in and K"ahler geometry in information geometry.
— Approximation and bounding techniques for the Fisher-Rao distances between parametric statistical models
(2403.10089 - Nielsen, 15 Mar 2024) in Conclusion: Summary and some open problems (final section)