Search Results for author: Kee Siong Ng

Found 9 papers, 3 papers with code

Dynamic Knowledge Injection for AIXI Agents

no code implementations18 Dec 2023 Samuel Yang-Zhao, Kee Siong Ng, Marcus Hutter

Prior approximations of AIXI, a Bayesian optimality notion for general reinforcement learning, can only approximate AIXI's Bayesian environment model using an a-priori defined set of models.

General Reinforcement Learning

Variational Inference for Scalable 3D Object-centric Learning

no code implementations25 Sep 2023 Tianyu Wang, Kee Siong Ng, Miaomiao Liu

We tackle the task of scalable unsupervised object-centric representation learning on 3D scenes.

Object Representation Learning +1

A Direct Approximation of AIXI Using Logical State Abstractions

no code implementations13 Oct 2022 Samuel Yang-Zhao, Tianyu Wang, Kee Siong Ng

We propose a practical integration of logical state abstraction with AIXI, a Bayesian optimality notion for reinforcement learning agents, to significantly expand the model class that AIXI agents can be approximated over to complex history-dependent and structured environments.

Factored Conditional Filtering: Tracking States and Estimating Parameters in High-Dimensional Spaces

no code implementations5 Jun 2022 Dawei Chen, Samuel Yang-Zhao, John Lloyd, Kee Siong Ng

This paper introduces the factored conditional filter, a new filtering algorithm for simultaneously tracking states and estimating parameters in high-dimensional state spaces.

Spatially Invariant Unsupervised 3D Object-Centric Learning and Scene Decomposition

no code implementations10 Jun 2021 Tianyu Wang, Miaomiao Liu, Kee Siong Ng

Experimental results demonstrate that SPAIR3D has strong scalability and is capable of detecting and segmenting an unknown number of objects from a point cloud in an unsupervised manner.

Object Relational Reasoning +1

Towards Fair and Privacy-Preserving Federated Deep Models

1 code implementation4 Jun 2019 Lingjuan Lyu, Jiangshan Yu, Karthik Nandakumar, Yitong Li, Xingjun Ma, Jiong Jin, Han Yu, Kee Siong Ng

This problem can be addressed by either a centralized framework that deploys a central server to train a global model on the joint data from all parties, or a distributed framework that leverages a parameter server to aggregate local model updates.

Benchmarking Fairness +3

Context Tree Switching

1 code implementation14 Nov 2011 Joel Veness, Kee Siong Ng, Marcus Hutter, Michael Bowling

This paper describes the Context Tree Switching technique, a modification of Context Tree Weighting for the prediction of binary, stationary, n-Markov sources.

Information Theory Information Theory

A Monte Carlo AIXI Approximation

2 code implementations4 Sep 2009 Joel Veness, Kee Siong Ng, Marcus Hutter, William Uther, David Silver

This paper introduces a principled approach for the design of a scalable general reinforcement learning agent.

General Reinforcement Learning Open-Ended Question Answering +2

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