Learning robust statistics for simulation-based inference under model misspecification

D Huang, A Bharti, A Souza… - Advances in Neural …, 2023 - proceedings.neurips.cc
Simulation-based inference (SBI) methods such as approximate Bayesian computation
(ABC), synthetic likelihood, and neural posterior estimation (NPE) rely on simulating …

Robust Bayesian inference for simulator-based models via the MMD posterior bootstrap

C Dellaporta, J Knoblauch… - International …, 2022 - proceedings.mlr.press
Simulator-based models are models for which the likelihood is intractable but simulation of
synthetic data is possible. They are often used to describe complex real-world phenomena …

Optimally-weighted estimators of the maximum mean discrepancy for likelihood-free inference

A Bharti, M Naslidnyk, O Key… - … on Machine Learning, 2023 - proceedings.mlr.press
Likelihood-free inference methods typically make use of a distance between simulated and
real data. A common example is the maximum mean discrepancy (MMD), which has …

Measurement-based prediction of mmWave channel parameters using deep learning and point cloud

H Mi, B Ai, R He, A Bodi, R Caromi… - IEEE Open Journal …, 2024 - ieeexplore.ieee.org
Millimeter-wave (MmWave) channel characteristics are quite different from sub-6 GHz
frequency bands. The major differences include higher path loss and sparser multipath …

Composite goodness-of-fit tests with kernels

O Key, A Gretton, FX Briol, T Fernandez - arXiv preprint arXiv:2111.10275, 2021 - arxiv.org
Model misspecification can create significant challenges for the implementation of
probabilistic models, and this has led to development of a range of robust methods which …

Approximate Bayesian computation with domain expert in the loop

A Bharti, L Filstroff, S Kaski - International Conference on …, 2022 - proceedings.mlr.press
Approximate Bayesian computation (ABC) is a popular likelihood-free inference method for
models with intractable likelihood functions. As ABC methods usually rely on comparing …

Discrepancy-based inference for intractable generative models using quasi-Monte Carlo

Z Niu, J Meier, FX Briol - Electronic Journal of Statistics, 2023 - projecteuclid.org
Intractable generative models, or simulators, are models for which the likelihood is
unavailable but sampling is possible. Most approaches to parameter inference in this setting …

Bayesian inference for stochastic multipath Radio Channel models

C Hirsch, A Bharti, T Pedersen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Stochastic radio channel models based on underlying point processes of multipath
components (MPCs) have been studied intensively since the seminal papers of Turin and …

Cost-aware simulation-based inference

A Bharti, D Huang, S Kaski, FX Briol - arXiv preprint arXiv:2410.07930, 2024 - arxiv.org
Simulation-based inference (SBI) is the preferred framework for estimating parameters of
intractable models in science and engineering. A significant challenge in this context is the …

Propagation graph representation learning and its implementation in direct path representation

K Suto, S Bannai, K Sato, T Fujii - 2023 IEEE Wireless …, 2023 - ieeexplore.ieee.org
This paper proposes a novel graph-learning-based radio propagation model, referred to as
propagation graph representation learning. Recent advancements in deep learning have …