activity
19982025
most citedThe Optimal Reward Baseline for Gradient-Based Reinforcement Learning

160 citations · 411 across the 10 of their papers we have counts for

collaborators

10 papers

cs.LG2025★ 7 cited

Reinforcement Learning From State and Temporal Differences

Lex Weaver, Jonathan Baxter

TD() with function approximation has proved empirically successful for some complex reinforcement learning problems. For linear approximation, TD() has been shown to minimise…

cs.LG2025★ 55 cited

A Multi-Agent, Policy-Gradient approach to Network Routing

Nigel Tao, Jonathan Baxter, Lex Weaver

Network routing is a distributed decision problem which naturally admits numerical performance measures, such as the average time for a packet to travel from source to destination.…

cs.LG2013★ 160 cited

The Optimal Reward Baseline for Gradient-Based Reinforcement Learning

Lex Weaver, Nigel Tao

There exist a number of reinforcement learning algorithms which learnby climbing the gradient of expected reward. Their long-runconvergence has been proved, even in partially obser…

cs.AI2011★ 139 cited

Experiments with Infinite-Horizon, Policy-Gradient Estimation

J. Baxter, P. L. Bartlett, L. Weaver

In this paper, we present algorithms that perform gradient ascent of the average reward in a partially observable Markov decision process (POMDP). These algorithms are based on GPO…

cs.DC2000★ 2 cited

Sorting Integers on the AP1000

Lex Weaver, Andrew Lynes

Sorting is one of the classic problems of computer science. Whilst well understood on sequential machines, the diversity of architectures amongst parallel systems means that algori…

cs.DC2000

Design and Evaluation of Mechanisms for a Multicomputer Object Store

Lex Weaver

Multicomputers have traditionally been viewed as powerful compute engines. It is from this perspective that they have been applied to various problems in order to achieve significa…