Adapting Double Q-Learning for Continuous Reinforcement Learning
- URL: http://arxiv.org/abs/2309.14471v1
- Date: Mon, 25 Sep 2023 19:09:54 GMT
- Title: Adapting Double Q-Learning for Continuous Reinforcement Learning
- Authors: Arsenii Kuznetsov
- Abstract summary: We present a novel approach to the bias correction, similar in spirit to Double Q-Learning.
Our approach shows promising near-SOTA results on a small set of MuJoCo environments.
- Score: 0.65268245109828
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Majority of off-policy reinforcement learning algorithms use overestimation
bias control techniques. Most of these techniques rooted in heuristics,
primarily addressing the consequences of overestimation rather than its
fundamental origins. In this work we present a novel approach to the bias
correction, similar in spirit to Double Q-Learning. We propose using a policy
in form of a mixture with two components. Each policy component is maximized
and assessed by separate networks, which removes any basis for the
overestimation bias. Our approach shows promising near-SOTA results on a small
set of MuJoCo environments.
Related papers
- Multi-Agent Reinforcement Learning from Human Feedback: Data Coverage and Algorithmic Techniques [65.55451717632317]
We study Multi-Agent Reinforcement Learning from Human Feedback (MARLHF), exploring both theoretical foundations and empirical validations.
We define the task as identifying Nash equilibrium from a preference-only offline dataset in general-sum games.
Our findings underscore the multifaceted approach required for MARLHF, paving the way for effective preference-based multi-agent systems.
arXiv Detail & Related papers (2024-09-01T13:14:41Z) - BECLR: Batch Enhanced Contrastive Few-Shot Learning [1.450405446885067]
Unsupervised few-shot learning aspires to bridge this gap by discarding the reliance on annotations at training time.
We propose a novel Dynamic Clustered mEmory (DyCE) module to promote a highly separable latent representation space.
We then tackle the, somehow overlooked yet critical, issue of sample bias at the few-shot inference stage.
arXiv Detail & Related papers (2024-02-04T10:52:43Z) - Projected Off-Policy Q-Learning (POP-QL) for Stabilizing Offline
Reinforcement Learning [57.83919813698673]
Projected Off-Policy Q-Learning (POP-QL) is a novel actor-critic algorithm that simultaneously reweights off-policy samples and constrains the policy to prevent divergence and reduce value-approximation error.
In our experiments, POP-QL not only shows competitive performance on standard benchmarks, but also out-performs competing methods in tasks where the data-collection policy is significantly sub-optimal.
arXiv Detail & Related papers (2023-11-25T00:30:58Z) - Statistically Efficient Variance Reduction with Double Policy Estimation
for Off-Policy Evaluation in Sequence-Modeled Reinforcement Learning [53.97273491846883]
We propose DPE: an RL algorithm that blends offline sequence modeling and offline reinforcement learning with Double Policy Estimation.
We validate our method in multiple tasks of OpenAI Gym with D4RL benchmarks.
arXiv Detail & Related papers (2023-08-28T20:46:07Z) - Expeditious Saliency-guided Mix-up through Random Gradient Thresholding [89.59134648542042]
Mix-up training approaches have proven to be effective in improving the generalization ability of Deep Neural Networks.
In this paper, inspired by the superior qualities of each direction over one another, we introduce a novel method that lies at the junction of the two routes.
We name our method R-Mix following the concept of "Random Mix-up"
In order to address the question of whether there exists a better decision protocol, we train a Reinforcement Learning agent that decides the mix-up policies.
arXiv Detail & Related papers (2022-12-09T14:29:57Z) - On the Estimation Bias in Double Q-Learning [20.856485777692594]
Double Q-learning is not fully unbiased and suffers from underestimation bias.
We show that such underestimation bias may lead to multiple non-optimal fixed points under an approximated Bellman operator.
We propose a simple but effective approach as a partial fix for the underestimation bias in double Q-learning.
arXiv Detail & Related papers (2021-09-29T13:41:24Z) - Parameter-Free Deterministic Reduction of the Estimation Bias in
Continuous Control [0.0]
We introduce a parameter-free, novel deep Q-learning variant to reduce this underestimation bias for continuous control.
We test the performance of our improvement on a set of MuJoCo and Box2D continuous control tasks.
arXiv Detail & Related papers (2021-09-24T07:41:07Z) - Estimation Error Correction in Deep Reinforcement Learning for
Deterministic Actor-Critic Methods [0.0]
In value-based deep reinforcement learning methods, approximation of value functions induces overestimation bias and leads to suboptimal policies.
We show that in deep actor-critic methods that aim to overcome the overestimation bias, if the reinforcement signals received by the agent have a high variance, a significant underestimation bias arises.
To minimize the underestimation, we introduce a parameter-free, novel deep Q-learning variant.
arXiv Detail & Related papers (2021-09-22T13:49:35Z) - Cross Learning in Deep Q-Networks [82.20059754270302]
We propose a novel cross Q-learning algorithm, aim at alleviating the well-known overestimation problem in value-based reinforcement learning methods.
Our algorithm builds on double Q-learning, by maintaining a set of parallel models and estimate the Q-value based on a randomly selected network.
arXiv Detail & Related papers (2020-09-29T04:58:17Z) - SUNRISE: A Simple Unified Framework for Ensemble Learning in Deep
Reinforcement Learning [102.78958681141577]
We present SUNRISE, a simple unified ensemble method, which is compatible with various off-policy deep reinforcement learning algorithms.
SUNRISE integrates two key ingredients: (a) ensemble-based weighted Bellman backups, which re-weight target Q-values based on uncertainty estimates from a Q-ensemble, and (b) an inference method that selects actions using the highest upper-confidence bounds for efficient exploration.
arXiv Detail & Related papers (2020-07-09T17:08:44Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.