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stat.ML2025
Beyond likelihood ratio bias: Nested multi-time-scale stochastic approximation for likelihood-free parameter estimation
Zehao Li, Zhouchen Lin, Yijie Peng
We study parameter inference in simulation-based stochastic models where the analytical form of the likelihood is unknown. The main difficulty is that score evaluation as a ratio o…
stat.ML2025
A New Stochastic Approximation Method for Gradient-based Simulated Parameter Estimation
Zehao Li, Yijie Peng
This paper tackles the challenge of parameter calibration in stochastic models, particularly in scenarios where the likelihood function is unavailable in an analytical form. We int…