activity
20222026
most citedDYNAMITE: Dynamic Interplay of Mini-Batch Size and Aggregation Frequency for Federated Learning with Static and Streaming Dataset

25 citations · 59 across the 33 of their papers we have counts for

collaborators

33 papers

cs.CL2026

Learning Latent Reasoning Traces for Scalar Reward Models End-to-End

Sanwoo Lee, Clive Bai, Hsiu-Yuan Huang +3

Reward models (RMs) are central to aligning large language models with human preferences via reinforcement learning. Although traditional scalar RMs enable efficient and probabilis…

cs.LG2026

TRACE: A Unified Rollout Budget Allocation Framework for Efficient Agentic Reinforcement Learning

Heming Zou, Qi Wang, Yun Qu +9

Reinforcement learning with verifiable rewards (RLVR) is a promising approach for enhancing reasoning and agentic behavior in large language models. However, rollout-intensive poli…

cs.LG2026

ADWIN: Adaptive Windows for Horizon-Aware On-Policy Distillation

Kun Liang, Chenming Tang, Clive Bai +3

On-policy distillation (OPD) transfers reasoning behavior by training a student on teacher feedback along student-generated trajectories, but standard full-rollout training ties ev…

cs.LG2026

RLVR Datasets and Where to Find Them: Tracing Data Lineage for Better Training Data

Hsiu-Yuan Huang, Weijie Liu, Chenming Tang +5

The proliferation of Reinforcement Learning from Verifiable Rewards (RLVR) datasets has exacerbated provenance collapse due to unclear lineage among existing datasets. To bridge th…

cs.CL2026

Learning to Foresee: Unveiling the Unlocking Efficiency of On-Policy Distillation

Yuchen Cai, Ding Cao, Liang Lin +9

On-policy distillation (OPD) has emerged as an efficient post-training paradigm for large language models. However, existing studies largely attribute this advantage to denser and…

cs.LG2026

Listwise Policy Optimization: Group-based RLVR as Target-Projection on the LLM Response Simplex

Yun Qu, Qi Wang, Yixiu Mao +11

Reinforcement learning with verifiable rewards (RLVR) has become a standard approach for large language models (LLMs) post-training to incentivize reasoning capacity. Among existin…

cs.LG2026

Democratizing Tool Learning with Environments Fully Simulated by a Free 8B Language Model

Chenming Tang, Hsiu-Yuan Huang, Weijie Liu +3

Reinforcement learning has become a prevalent paradigm for training tool calling agents, which typically requires online interactive environments. Existing approaches either rely o…

cs.CR2026

Misrouter: Exploiting Routing Mechanisms for Input-Only Attacks on Mixture-of-Experts LLMs

Zekun Fei, Zihao Wang, Weijie Liu +4

Mixture-of-Experts (MoE) architectures have emerged as a leading paradigm for scaling large language models through sparse, routing-based computation. However, this design introduc…

cs.LG2026

Learning beyond Teacher: Generalized On-Policy Distillation with Reward Extrapolation

Wenkai Yang, Weijie Liu, Ruobing Xie +3

On-policy distillation (OPD), which aligns the student with the teacher's logit distribution on student-generated trajectories, has demonstrated strong empirical gains in improving…

cs.CL2026

Composition-RL: Compose Your Verifiable Prompts for Reinforcement Learning of Large Language Models

Xin Xu, Clive Bai, Kai Yang +8

Large-scale verifiable prompts underpin the success of Reinforcement Learning with Verifiable Rewards (RLVR), but they contain many uninformative examples and are costly to expand…

cs.AI2026

Small Generalizable Prompt Predictive Models Can Steer Efficient RL Post-Training of Large Reasoning Models

Yun Qu, Qi Wang, Yixiu Mao +8

Reinforcement learning enhances the reasoning capabilities of large language models but often involves high computational costs due to rollout-intensive optimization. Online prompt…

cs.LG2026

ORBIT: On-policy Exploration-Exploitation for Controllable Multi-Budget Reasoning

Kun Liang, Clive Bai, Xin Xu +5

Recent Large Reasoning Models (LRMs) achieve strong performance by leveraging long-form Chain-of-Thought (CoT) reasoning, but uniformly applying overlong reasoning at inference tim…

cs.IR2025

VI-MMRec: Similarity-Aware Training Cost-free Virtual User-Item Interactions for Multimodal Recommendation

Jinfeng Xu, Zheyu Chen, Shuo Yang +6

Although existing multimodal recommendation models have shown promising performance, their effectiveness continues to be limited by the pervasive data sparsity problem. This proble…

cs.LG2025

EntroPIC: Towards Stable Long-Term Training of LLMs via Entropy Stabilization with Proportional-Integral Control

Kai Yang, Xin Xu, Yangkun Chen +5

Long-term training of large language models (LLMs) requires maintaining stable exploration to prevent the model from collapsing into sub-optimal behaviors. Entropy is crucial in th…

cs.CL2025

LaSeR: Reinforcement Learning with Last-Token Self-Rewarding

Wenkai Yang, Weijie Liu, Ruobing Xie +4

Reinforcement Learning with Verifiable Rewards (RLVR) has recently emerged as a core paradigm for enhancing the reasoning capabilities of Large Language Models (LLMs). To address t…

cs.LG2025

Think Outside the Policy: In-Context Steered Policy Optimization

Hsiu-Yuan Huang, Chenming Tang, Weijie Liu +3

Existing Reinforcement Learning from Verifiable Rewards (RLVR) methods, such as Group Relative Policy Optimization (GRPO), have achieved remarkable progress in improving the reason…

cs.LG2025

Do Not Step Into the Same River Twice: Learning to Reason from Trial and Error

Chenming Tang, Hsiu-Yuan Huang, Weijie Liu +3

Reinforcement learning with verifiable rewards (RLVR) has significantly boosted the reasoning capability of language models (LMs). However, existing RLVR approaches train LMs based…

cs.IR2025

Transform Before You Query: A Privacy-Preserving Approach for Vector Retrieval with Embedding Space Alignment

Ruiqi He, Zekun Fei, Jiaqi Li +5

Vector Database (VDB) can efficiently index and search high-dimensional vector embeddings from unstructured data, crucially enabling fast semantic similarity search essential for m…

cs.CL2025

Hunyuan-TurboS: Advancing Large Language Models through Mamba-Transformer Synergy and Adaptive Chain-of-Thought

Tencent Hunyuan Team, Ao Liu, Botong Zhou +248

As Large Language Models (LLMs) rapidly advance, we introduce Hunyuan-TurboS, a novel large hybrid Transformer-Mamba Mixture of Experts (MoE) model. It synergistically combines Mam…

cs.LG2025

TACO: Tackling Over-correction in Federated Learning with Tailored Adaptive Correction

Weijie Liu, Ziwei Zhan, Carlee Joe-Wong +5

Non-independent and identically distributed (Non-IID) data across edge clients have long posed significant challenges to federated learning (FL) training in edge computing environm…

cs.LG2024★ 4 cited

FedMoE-DA: Federated Mixture of Experts via Domain Aware Fine-grained Aggregation

Ziwei Zhan, Wenkuan Zhao, Yuanqing Li +6

Federated learning (FL) is a collaborative machine learning approach that enables multiple clients to train models without sharing their private data. With the rise of deep learnin…

cs.LG2024★ 3 cited

FedReMa: Improving Personalized Federated Learning via Leveraging the Most Relevant Clients

Han Liang, Ziwei Zhan, Weijie Liu +3

Federated Learning (FL) is a distributed machine learning paradigm that achieves a globally robust model through decentralized computation and periodic model synthesis, primarily f…

cs.DC2024

Pro-Prophet: A Systematic Load Balancing Method for Efficient Parallel Training of Large-scale MoE Models

Wei Wang, Zhiquan Lai, Shengwei Li +5

The size of deep learning models has been increasing to enhance model quality. The linear increase in training computation budget with model size means that training an extremely l…

cs.CL2024

MemLong: Memory-Augmented Retrieval for Long Text Modeling

Weijie Liu, Zecheng Tang, Juntao Li +2

Recent advancements in Large Language Models (LLMs) have yielded remarkable success across diverse fields. However, handling long contexts remains a significant challenge for LLMs…