Search Results for author: Carlo Albert

Found 6 papers, 3 papers with code

Simulation-based inference using surjective sequential neural likelihood estimation

1 code implementation2 Aug 2023 Simon Dirmeier, Carlo Albert, Fernando Perez-Cruz

We present Surjective Sequential Neural Likelihood (SSNL) estimation, a novel method for simulation-based inference in models where the evaluation of the likelihood function is not tractable and only a simulator that can generate synthetic data is available.

Bayesian Inference Variational Inference

Learning Summary Statistics for Bayesian Inference with Autoencoders

1 code implementation28 Jan 2022 Carlo Albert, Simone Ulzega, Firat Ozdemir, Fernando Perez-Cruz, Antonietta Mira

For stochastic models with intractable likelihood functions, approximate Bayesian computation offers a way of approximating the true posterior through repeated comparisons of observations with simulated model outputs in terms of a small set of summary statistics.

Bayesian Inference

Second-order Phase Transition in Phytoplankton Trait Dynamics

no code implementations1 Apr 2020 Jenny Held, Tom Lorimer, Francesco Pomati, Ruedi Stoop, Carlo Albert

Key traits of unicellular species, like cell size, often follow scale-free or self-similar distributions, hinting at the possibility of an underlying critical process.

Appraisal of data-driven and mechanistic emulators of nonlinear hydrodynamic urban drainage simulators

no code implementations25 Sep 2016 Juan Pablo Carbajal, João Paulo Leitão, Carlo Albert, Jörg Rieckermann

In this paper, we therefore compare the performance of two families of emulators for open channel flows in the context of urban drainage simulators.

Gaussian Processes

A Simulated Annealing Approach to Bayesian Inference

no code implementations17 Sep 2015 Carlo Albert

In the general case, we propose annealing with a constant entropy production rate, which is optimal as long as annealing is not too fast.

Bayesian Inference

A Simulated Annealing Approach to Approximate Bayes Computations

1 code implementation10 Aug 2012 Carlo Albert, Hans R. Kuensch, Andreas Scheidegger

In particle ABC, an ensemble of particles in the product space of model outputs and parameters is propagated in such a way that its output marginal approaches a delta function at the data and its parameter marginal approaches the posterior distribution.

Computation Computational Physics

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