y0news
AnalyticsDigestsSourcesTopicsRSSAICrypto

#actor-critic News & Analysis

7 articles tagged with #actor-critic. AI-curated summaries with sentiment analysis and key takeaways from 50+ sources.

7 articles
AIBullisharXiv โ€“ CS AI ยท 2d ago7/10
๐Ÿง 

Bringing Value Models Back: Generative Critics for Value Modeling in LLM Reinforcement Learning

Researchers propose Generative Actor-Critic (GenAC), a new approach to value modeling in large language model reinforcement learning that uses chain-of-thought reasoning instead of one-shot scalar predictions. The method addresses a longstanding challenge in credit assignment by improving value approximation and downstream RL performance compared to existing value-based and value-free baselines.

AIBullisharXiv โ€“ CS AI ยท Mar 176/10
๐Ÿง 

XQC: Well-conditioned Optimization Accelerates Deep Reinforcement Learning

Researchers introduce XQC, a deep reinforcement learning algorithm that achieves state-of-the-art sample efficiency by optimizing the critic network's condition number through batch normalization, weight normalization, and distributional cross-entropy loss. The method outperforms existing approaches across 70 continuous control tasks while using fewer parameters.

AIBullisharXiv โ€“ CS AI ยท Mar 36/104
๐Ÿง 

FAuNO: Semi-Asynchronous Federated Reinforcement Learning Framework for Task Offloading in Edge Systems

Researchers have developed FAuNO, a new federated reinforcement learning framework that uses asynchronous processing to optimize task distribution in edge computing networks. The system employs an actor-critic architecture where local nodes learn specific dynamics while a central critic coordinates overall system performance, demonstrating superior results in reducing latency and task loss compared to existing methods.

AINeutralarXiv โ€“ CS AI ยท Mar 36/104
๐Ÿง 

Distributions as Actions: A Unified Framework for Diverse Action Spaces

Researchers introduce a new reinforcement learning framework called Distributions-as-Actions (DA) that treats parameterized action distributions as actions, making all action spaces continuous regardless of original type. The approach includes a new policy gradient estimator (DA-PG) with lower variance and a practical actor-critic algorithm (DA-AC) that shows competitive performance across discrete, continuous, and hybrid control tasks.

AIBullisharXiv โ€“ CS AI ยท Mar 27/1016
๐Ÿง 

SMAC: Score-Matched Actor-Critics for Robust Offline-to-Online Transfer

Researchers developed Score Matched Actor-Critic (SMAC), a new offline reinforcement learning method that enables smooth transition to online RL algorithms without performance drops. SMAC achieved successful transfer in all 6 D4RL tasks tested and reduced regret by 34-58% in 4 of 6 environments compared to best baselines.

AINeutralOpenAI News ยท Oct 184/105
๐Ÿง 

Asymmetric actor critic for image-based robot learning

The article appears to discuss asymmetric actor critic methods for image-based robot learning, focusing on reinforcement learning approaches for robotic systems. However, the article body is empty, preventing detailed analysis of the specific methodology or findings.

AINeutralHugging Face Blog ยท Jul 222/107
๐Ÿง 

Advantage Actor Critic (A2C)

The article appears to be incomplete or missing content, with only the title 'Advantage Actor Critic (A2C)' provided. A2C is a reinforcement learning algorithm that combines value-based and policy-based methods, commonly used in AI applications including trading and optimization.