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Gautham Vasan

4 accepted papers

2024

Deep Policy Gradient Methods Without Batch Updates, Target Networks, or Replay Buffers

NeurIPS 2024poster

Modern deep policy gradient methods achieve effective performance on simulated robotic tasks, but they all require large replay buffers or expensive batch updates, or both, making them incompatible for real systems with resource-limited computers. We show that these methods fail catastrophically whe…

2023

Correcting discount-factor mismatch in on-policy policy gradient methods

ICML 2023poster

The policy gradient theorem gives a convenient form of the policy gradient in terms of three factors: an action value, a gradient of the action likelihood, and a state distribution involving discounting called the *discounted stationary distribution*. But commonly used on-policy methods based on the…

Cited by 12SourcePDFScholar
2023

Real-Time Reinforcement Learning for Vision-Based Robotics Utilizing Local and Remote Computers

ICRA 2023poster

Real-time learning is crucial for robotic agents adapting to ever-changing, non-stationary environments. A common setup for a robotic agent is to have two different computers simultaneously: a resource-limited local computer tethered to the robot and a powerful remote computer connected wirelessly.…

Cited by 14SourcecodeScholar
2018

Benchmarking Reinforcement Learning Algorithms on Real-World Robots

CoRL 2018

Through many recent successes in simulation, model-free reinforcement learning has emerged as a promising approach to solving continuous control robotic tasks. The research community is now able to reproduce, analyze and build quickly on these results due to open source implementations of learning a