activity
20242026
most citedThe Heterophilic Graph Learning Handbook: Benchmarks, Models, Theoretical Analysis, Applications and Challenges

3 citations · 4 across the 14 of their papers we have counts for

collaborators

17 papers

cs.MA2026

XferAgent: Cross-Agent Experience Transfer for Self-Improving LLM Agents

Weihao Li, Jun Bai, Shijie Chen +3

Large language model (LLM) agents can reuse experience from prior task executions to improve performance on subsequent tasks. Although existing methods enable cross-agent experienc…

cs.CL2026

SMI: Ontology-Grounded Semantic IDs for Hierarchy-Aware Medical Concept Representation

Ziyang Song, Lia Shen, Yixuan Li +6

Biomedical language models (LMs) provide strong representations for clinical tasks, but they often fail to capture the hierarchical structure among medical concepts. This limitatio…

cs.LG2026

JARQ: Joint Alternating Refinement for Quantization

Xinyu Wang, Sicheng Lyu, Xiao-Wen Chang

Group-wise post-training quantizers for large language models round weights onto a grid that is not refit to the resulting integer codes. We show that this leaves accuracy on the t…

cs.CL2026

Patients-like-me: A Variational LM--GNN Framework for Explainable Clinical Prediction

Xinyu Wang, Yixuan Li, Hanwei Wu +4

Language models (LMs) offer strong textual representations for electronic health records (EHRs), but they encode patient sequences in isolation and provide limited explainability.…

cs.CL2026

MATCH: Modulating Attention via In-Context Retrieval for Long-Context Transformers

Linrui Ma, Chun Hei Lo, Xinyu Wang +12

The quadratic computational cost of traditional attention mechanisms poses a major bottleneck to the scalability and practical deployment of large language models (LLMs), particula…

cs.CL2026

TARQ: Tail-Aware Reconstruction Quantization for Rare-Word Robust Automatic Speech Recognition

Xinyu Wang, Ziyu Zhao, Ke Bai +4

Data-aware post-training quantization (PTQ) minimizes a per-token reconstruction loss on a small calibration corpus, implicitly weighting positions by their empirical frequency. Fo…

cs.CV2026

HoloQ-VLA: Uniform W4A4 Quantization of Vision-Language-Action Models

Xinyu Wang, Mingze Li, Sicheng Lyu +6

Vision-Language-Action (VLA) models unify perception, reasoning, and control in a single policy, but their multi-billion-parameter backbones and diffusion-based action heads make o…

cs.AI2026

TABQAWORLD: Optimizing Multimodal Reasoning for Multi-Turn Table Question Answering

Tung Sum Thomas Kwok, Xinyu Wang, Xiaofeng Lin +7

Multimodal reasoning has emerged as a powerful framework for enhancing reasoning capabilities of reasoning models. While multi-turn table reasoning methods have improved reasoning…

cs.LG2026

Co-Evolution of Policy and Internal Reward for Language Agents

Xinyu Wang, Hanwei Wu, Jingwei Song +8

Large language model (LLM) agents learn by interacting with environments, but long-horizon training remains fundamentally bottlenecked by sparse and delayed rewards. Existing metho…

cs.LG2026

OJBKQ: Objective-Joint Babai-Klein Quantization

Xinyu Wang, Ziyu Zhao, Peng Lu +2

Post-training quantization (PTQ) is widely used to compress large language models without retraining. However, many existing weight-only methods rely on heuristic objectives and gr…

cs.CL2026★ 1 cited

InfMem: Learning System-2 Memory Control for Long-Context Agent

Xinyu Wang, Mingze Li, Peng Lu +6

Reasoning over ultra-long documents requires synthesizing sparse evidence scattered across distant segments under strict memory constraints. While streaming agents enable scalable…

cs.LG2026

Beyond Hard Writes and Rigid Preservation: Soft Recursive Least-Squares for Lifelong LLM Editing

Xinyu Wang, Sicheng Lyu, Yu Gu +4

Model editing updates a pre-trained LLM with new facts or rules without retraining while preserving unrelated behavior. In real deployment, edits arrive as long streams, creating a…

cs.CL2025

EvoEdit: Evolving Null-space Alignment for Robust and Efficient Knowledge Editing

Sicheng Lyu, Yu Gu, Xinyu Wang +5

Large language models (LLMs) require continual updates to rectify outdated or erroneous knowledge. Model editing has emerged as a compelling paradigm for introducing targeted modif…

cs.CL2025

PoTPTQ: A Two-step Power-of-Two Post-training for LLMs

Xinyu Wang, Vahid Partovi Nia, Peng Lu +4

Large Language Models (LLMs) have demonstrated remarkable performance across various natural language processing (NLP) tasks. However, their deployment is challenging due to the su…

cs.CL2025

Resona: Improving Context Copying in Linear Recurrence Models with Retrieval

Xinyu Wang, Linrui Ma, Jerry Huang +5

Recent shifts in the space of large language model (LLM) research have shown an increasing focus on novel architectures to compete with prototypical Transformer-based models that h…

cs.LG2024

Revealing the Pitfalls and Re-Evaluating the Advancement of Heterophilic Graph Learning

Sitao Luan, Qincheng Lu, Chenqing Hua +3

Over the past decade, Graph Neural Networks (GNNs) have achieved great success on machine learning tasks with relational data. However, recent studies have found that heterophily c…

cs.LG2024★ 3 cited

The Heterophilic Graph Learning Handbook: Benchmarks, Models, Theoretical Analysis, Applications and Challenges

Sitao Luan, Chenqing Hua, Qincheng Lu +11

Homophily principle, \ie{} nodes with the same labels or similar attributes are more likely to be connected, has been commonly believed to be the main reason for the superiority of…