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Found 8 papers, 6 papers with code
Fast and Credible Likelihood-Free Cosmology with Truncated Marginal Neural Ratio Estimation
Sampling-based inference techniques are central to modern cosmological data analysis; these methods, however, scale poorly with dimensionality and typically require approximate or intractable likelihoods.
Truncated Marginal Neural Ratio Estimation
Parametric stochastic simulators are ubiquitous in science, often featuring high-dimensional input parameters and/or an intractable likelihood.
Topological Echoes of Primordial Physics in the Universe at Large Scales
We present a pipeline for characterizing and constraining initial conditions in cosmology via persistent homology.
Interpretable Phase Detection and Classification with Persistent Homology
We apply persistent homology to the task of discovering and characterizing phase transitions, using lattice spin models from statistical physics for working examples.
Simulation-efficient marginal posterior estimation with swyft: stop wasting your precious time
We present algorithms (a) for nested neural likelihood-to-evidence ratio estimation, and (b) for simulation reuse via an inhomogeneous Poisson point process cache of parameters and corresponding simulations.
Quantitative and Interpretable Order Parameters for Phase Transitions from Persistent Homology
This method suffices to identify magnetization, frustration, and vortex-antivortex structure as relevant features for phase transitions in our models.
Statistical Mechanics Algebraic Topology
The Persistence of Large Scale Structures I: Primordial non-Gaussianity
Persistent homology is a technique from topological data analysis that quantifies the multiscale topology of a data set, in our context unifying the contributions of clusters, filament loops, and cosmic voids to cosmological constraints.
Cosmology and Nongalactic Astrophysics High Energy Physics - Theory Algebraic Topology
Searching the Landscape of Flux Vacua with Genetic Algorithms
In this paper, we employ genetic algorithms to explore the landscape of type IIB flux vacua.
