activity
20152025
most citedTrust Region Policy Optimization

3k citations · 6.2k across the 11 of their papers we have counts for

collaborators

11 papers

cs.AI2025

SkyRL-Agent: Efficient RL Training for Multi-turn LLM Agent

Shiyi Cao, Dacheng Li, Fangzhou Zhao +12

We introduce SkyRL-Agent, a framework for efficient, multi-turn, long-horizon agent training and evaluation. It provides efficient asynchronous dispatching, lightweight tool integr…

cs.DC2020

Hoplite: Efficient and Fault-Tolerant Collective Communication for Task-Based Distributed Systems

Siyuan Zhuang, Zhuohan Li, Danyang Zhuo +5

Task-based distributed frameworks (e.g., Ray, Dask, Hydro) have become increasingly popular for distributed applications that contain asynchronous and dynamic workloads, including…

cs.LG2019★ 18 cited

Policy Gradient Search: Online Planning and Expert Iteration without Search Trees

Thomas Anthony, Robert Nishihara, Philipp Moritz +2

Monte Carlo Tree Search (MCTS) algorithms perform simulation-based search to improve policies online. During search, the simulation policy is adapted to explore the most promising…

cs.LG2018★ 599 cited

Tune: A Research Platform for Distributed Model Selection and Training

Richard Liaw, Eric Liang, Robert Nishihara +3

Modern machine learning algorithms are increasingly computationally demanding, requiring specialized hardware and distributed computation to achieve high performance in a reasonabl…

cs.AI2017★ 328 cited

RLlib: Abstractions for Distributed Reinforcement Learning

Eric Liang, Richard Liaw, Philipp Moritz +6

Reinforcement learning (RL) algorithms involve the deep nesting of highly irregular computation patterns, each of which typically exhibits opportunities for distributed computation…

cs.DC2017★ 252 cited

Ray: A Distributed Framework for Emerging AI Applications

Philipp Moritz, Robert Nishihara, Stephanie Wang +8

The next generation of AI applications will continuously interact with the environment and learn from these interactions. These applications impose new and demanding systems requir…

cs.DC2017★ 14 cited

Real-Time Machine Learning: The Missing Pieces

Robert Nishihara, Philipp Moritz, Stephanie Wang +7

Machine learning applications are increasingly deployed not only to serve predictions using static models, but also as tightly-integrated components of feedback loops involving dyn…

stat.ML2015★ 74 cited

SparkNet: Training Deep Networks in Spark

Philipp Moritz, Robert Nishihara, Ion Stoica +1

Training deep networks is a time-consuming process, with networks for object recognition often requiring multiple days to train. For this reason, leveraging the resources of a clus…

math.OC2015★ 164 cited

A Linearly-Convergent Stochastic L-BFGS Algorithm

Philipp Moritz, Robert Nishihara, Michael I. Jordan

We propose a new stochastic L-BFGS algorithm and prove a linear convergence rate for strongly convex and smooth functions. Our algorithm draws heavily from a recent stochastic vari…

cs.LG2015★ 1.7k cited

High-Dimensional Continuous Control Using Generalized Advantage Estimation

John Schulman, Philipp Moritz, Sergey Levine +2

Policy gradient methods are an appealing approach in reinforcement learning because they directly optimize the cumulative reward and can straightforwardly be used with nonlinear fu…

cs.LG2015★ 3k cited

Trust Region Policy Optimization

John Schulman, Sergey Levine, Philipp Moritz +2

We describe an iterative procedure for optimizing policies, with guaranteed monotonic improvement. By making several approximations to the theoretically-justified procedure, we dev…