Insurance fraud detection with unsupervised deep learning

C Gomes, Z Jin, H Yang - Journal of Risk and Insurance, 2021 - Wiley Online Library
The objective of this paper is to propose a novel deep learning methodology to gain
pragmatic insights into the behavior of an insured person using unsupervised variable …

Specializing versatile skill libraries using local mixture of experts

O Celik, D Zhou, G Li, P Becker… - Conference on Robot …, 2022 - proceedings.mlr.press
A long-cherished vision in robotics is to equip robots with skills that match the versatility and
precision of humans. For example, when playing table tennis, a robot should be capable of …

Pseudo-likelihood inference

T Gruner, B Belousov, F Muratore… - Advances in …, 2024 - proceedings.neurips.cc
Abstract Simulation-Based Inference (SBI) is a common name for an emerging family of
approaches that infer the model parameters when the likelihood is intractable. Existing SBI …

A unified perspective on natural gradient variational inference with gaussian mixture models

O Arenz, P Dahlinger, Z Ye, M Volpp… - arXiv preprint arXiv …, 2022 - arxiv.org
Variational inference with Gaussian mixture models (GMMs) enables learning of highly
tractable yet multi-modal approximations of intractable target distributions with up to a few …

Wasserstein gradient flows for optimizing Gaussian mixture policies

H Ziesche, L Rozo - Advances in Neural Information …, 2024 - proceedings.neurips.cc
Robots often rely on a repertoire of previously-learned motion policies for performing tasks
of diverse complexities. When facing unseen task conditions or when new task requirements …

Curriculum-based imitation of versatile skills

MX Li, O Celik, P Becker, D Blessing… - … on Robotics and …, 2023 - ieeexplore.ieee.org
Learning skills by imitation is a promising concept for the intuitive teaching of robots. A
common way to learn such skills is to learn a parametric model by maximizing the likelihood …

Structured dropout variational inference for Bayesian neural networks

S Nguyen, D Nguyen, K Nguyen… - Advances in Neural …, 2021 - proceedings.neurips.cc
Approximate inference in Bayesian deep networks exhibits a dilemma of how to yield high
fidelity posterior approximations while maintaining computational efficiency and scalability …

Inferring versatile behavior from demonstrations by matching geometric descriptors

N Freymuth, N Schreiber, P Becker, A Taranovic… - arXiv preprint arXiv …, 2022 - arxiv.org
Humans intuitively solve tasks in versatile ways, varying their behavior in terms of trajectory-
based planning and for individual steps. Thus, they can easily generalize and adapt to new …

Fast Computer Model Calibration using Annealed and Transformed Variational Inference

DD Cho, W Chang, J Park - Journal of Computational and …, 2024 - Taylor & Francis
Computer models play a crucial role in numerous scientific and engineering domains. To
ensure the accuracy of simulations, it is essential to properly calibrate the input parameters …

Sequential Controlled Langevin Diffusions

J Chen, L Richter, J Berner, D Blessing… - arXiv preprint arXiv …, 2024 - arxiv.org
An effective approach for sampling from unnormalized densities is based on the idea of
gradually transporting samples from an easy prior to the complicated target distribution. Two …