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Code for "An adaptively weighted stochastic gradient MCMC algorithm for Monte Carlo simulation and global optimization (Statistics and Computing 2022)"

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Global-optimization-via-an-adaptively-weighted-stochastic-gradient-MCMC

Code for "An adaptively weighted stochastic gradient MCMC algorithm for Monte Carlo simulation and global optimization (Statistics and Computing 2022)"

Global optimization on 10 non-convex functions

The adaptively weighted scheme can outperform the vanilla alternative by almost hundreds of times in the following cases (but not limited to) and is much better the existing baselines.

Index Function name Dimension Link
1 Rastrigin 20 link
2 Griewank 20 link
3 Sum Squares 20 link
4 Rosenbrock 20 link
5 Zakharov 20 link
6 Powell 24 link
7 Dixon & Price 25 link
8 Levy 30 link
9 Sphere 30 link
10 Ackley 30 link

Mode explorations on MNIST dataset

Although MNIST has been talked about a billion times, the MCMC algorithms cannot achieve free exploration / fluctuating losses using a fixed learning rate. Luckily, such a tragedy has been solved through this code.

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Code for "An adaptively weighted stochastic gradient MCMC algorithm for Monte Carlo simulation and global optimization (Statistics and Computing 2022)"

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