no code implementations • ICLR 2019 • Xiaoyu Lu, Jan Stuehmer, Katja Hofmann
In this paper, we use a generative model to capture different emergent playstyles in an unsupervised manner, enabling the imitation of a diverse range of distinct behaviours.
1 code implementation • 20 Jun 2022 • Xiaoyu Lu, Alexis Boukouvalas, James Hensman
Gaussian Process (GP) models are a class of flexible non-parametric models that have rich representational power.
1 code implementation • 1 Sep 2021 • Wennan Chang, Pengtao Dang, Changlin Wan, Xiaoyu Lu, Yue Fang, Tong Zhao, Yong Zang, Bo Li, Chi Zhang, Sha Cao
Compared with existing spatial regression models, our proposed model assumes the existence a few distinct regression models that are estimated based on observations that exhibit similar response-predictor relationships.
no code implementations • 1 Jan 2021 • Bharathan Balaji, Petros Christodoulou, Xiaoyu Lu, Byungsoo Jeon, Jordan Bell-Masterson
We propose a simple class of deep reinforcement learning (RL) methods, called FactoredRL, that can leverage factored environment structures to improve the sample efficiency of existing model-based and model-free RL algorithms.
1 code implementation • 18 Jul 2020 • Purva Pruthi, Javier González, Xiaoyu Lu, Madalina Fiterau
Human beings learn causal models and constantly use them to transfer knowledge between similar environments.
no code implementations • 24 May 2020 • Virginia Aglietti, Xiaoyu Lu, Andrei Paleyes, Javier González
This paper studies the problem of globally optimizing a variable of interest that is part of a causal model in which a sequence of interventions can be performed.
no code implementations • 31 Oct 2018 • Xiaoyu Lu, Tom Rainforth, Yuan Zhou, Jan-Willem van de Meent, Yee Whye Teh
We study adaptive importance sampling (AIS) as an online learning problem and argue for the importance of the trade-off between exploration and exploitation in this adaptation.
no code implementations • ICML 2018 • Xiaoyu Lu, Javier Gonzalez, Zhenwen Dai, Neil Lawrence
We tackle the problem of optimizing a black-box objective function defined over a highly-structured input space.
no code implementations • 25 Jun 2018 • Tom Rainforth, Yuan Zhou, Xiaoyu Lu, Yee Whye Teh, Frank Wood, Hongseok Yang, Jan-Willem van de Meent
We introduce inference trees (ITs), a new class of inference methods that build on ideas from Monte Carlo tree search to perform adaptive sampling in a manner that balances exploration with exploitation, ensures consistency, and alleviates pathologies in existing adaptive methods.
no code implementations • 14 Sep 2016 • Xiaoyu Lu, Valerio Perrone, Leonard Hasenclever, Yee Whye Teh, Sebastian J. Vollmer
Based on this, we develop relativistic stochastic gradient descent by taking the zero-temperature limit of relativistic stochastic gradient Hamiltonian Monte Carlo.
no code implementations • 23 May 2016 • Hyunjik Kim, Xiaoyu Lu, Seth Flaxman, Yee Whye Teh
We tackle the problem of collaborative filtering (CF) with side information, through the lens of Gaussian Process (GP) regression.