activity
20242026
collaborators

21 papers

cs.CL2026

Enhancing Social Intelligence in LLMs with Hierarchical Reasoning and Utterance-Level Goal Rewarding

Xiaofeng Wang, Kakam Chong, Shuai Xiao +9

Large language models (LLMs) excel in structured tasks but struggle with dynamic social interactions, where success requires long-term goal coordination and rapid adaptation. Curre…

cs.CL2026

MemoryDocDataSet: A Benchmark for Joint Conversational Memory and Long Document Reasoning

Qiyang Xie, Jialun Wu, Xinjie He +4

AI systems increasingly need to combine two demanding capabilities: navigating multi-session conversation history and performing deep reading comprehension within long documents. Y…

cs.AI2026

When Does Persona Prompting Actually Help? A Retrieval and Metric Analysis of Expert Role Injection in LLMs

Shuai Xiao, Su Liu, Weikai Zhou +4

Persona prompting is widely used to steer large language models, yet its practical value remains unclear. Prior work often evaluates persona prompting using aggregate scores, makin…

cs.CL2026

What Training Data Teaches RL Memory Agents: An Empirical Study of Curriculum Effects in Memory-Augmented QA

Xinjie He, Zhiyuan Lin, Su Liu +4

Reinforcement learning (RL) has emerged as a viable recipe for training LLM agents to reason over external memory banks in multi-session dialogue. Existing work trains exclusively…

cs.CV2026

Geometrically Constrained Stenosis Editing in Coronary Angiography via Entropic Optimal Transport

Jialin Li, Zhuo Zhang, Yue Cao +4

The scarcity of high-quality imaging data for coronary angiography (CAG) stenosis limits the clinical translation of automated stenosis detection. Synthetic stenosis data provides…

cs.CV2026

Improving Human Image Animation via Semantic Representation Alignment

Chang Liu, Mengting Chen, Yixuan Huang +5

The field of image-to-video generation has made remarkable progress. However, challenges such as human limb twisting and facial distortion persist, especially when generating long…

cs.LG2025

Explore More, Learn Better: Parallel MLLM Embeddings under Mutual Information Minimization

Zhicheng Wang, Chen Ju, Xu Chen +5

Embedding models are a cornerstone of modern AI. Driven by Multimodal Large Language Models (MLLMs), they have made great progress in architecture and data curation, while the holi…

cs.CV2025

Wave-Particle (Continuous-Discrete) Dualistic Visual Tokenization for Unified Understanding and Generation

Yizhu Chen, Chen Ju, Zhicheng Wang +5

The unification of understanding and generation within a single multi-modal large model (MLLM) remains one significant challenge, largely due to the dichotomy between continuous an…

cs.IR2025

Leveraging Scene Context with Dual Networks for Sequential User Behavior Modeling

Xu Chen, Yunmeng Shu, Yuangang Pan +6

Modeling sequential user behaviors for future behavior prediction is crucial in improving user's information retrieval experience. Recent studies highlight the importance of incorp…

cs.AI2025

Evaluating Multi-Turn Bargain Skills in LLM-Based Seller Agent

Issue Yishu Wang, Kakam Chong, Xiaofeng Wang +7

In online second-hand marketplaces, multi-turn bargaining is a crucial part of seller-buyer interactions. Large Language Models (LLMs) can act as seller agents, negotiating with bu…

cs.AI2025

MMKB-RAG: A Multi-Modal Knowledge-Based Retrieval-Augmented Generation Framework

Zihan Ling, Zhiyao Guo, Yixuan Huang +5

Recent advancements in large language models (LLMs) and multi-modal LLMs have been remarkable. However, these models still rely solely on their parametric knowledge, which limits t…

cs.GR2025

Beyond Static Scenes: Camera-controllable Background Generation for Human Motion

Mingshuai Yao, Mengting Chen, Qinye Zhou +9

In this paper, we investigate the generation of new video backgrounds given a human foreground video, a camera pose, and a reference scene image. This task presents three key chall…

cs.LG2025

Squeeze Out Tokens from Sample for Finer-Grained Data Governance

Weixiong Lin, Chen Ju, Haicheng Wang +8

Widely observed data scaling laws, in which error falls off as a power of the training size, demonstrate the diminishing returns of unselective data expansion. Hence, data governan…

cs.CV2025

Contrast-Unity for Partially-Supervised Temporal Sentence Grounding

Haicheng Wang, Chen Ju, Weixiong Lin +4

Temporal sentence grounding aims to detect event timestamps described by the natural language query from given untrimmed videos. The existing fully-supervised setting achieves grea…

cs.CV2024

Advancing Myopia To Holism: Fully Contrastive Language-Image Pre-training

Haicheng Wang, Chen Ju, Weixiong Lin +9

In rapidly evolving field of vision-language models (VLMs), contrastive language-image pre-training (CLIP) has made significant strides, becoming foundation for various downstream…

cs.IR2024

Counterfactual Learning-Driven Representation Disentanglement for Search-Enhanced Recommendation

Jiajun Cui, Xu Chen, Shuai Xiao +4

For recommender systems in internet platforms, search activities provide additional insights into user interest through query-click interactions with items, and are thus widely use…

cs.IR2024

Learning Multi-Branch Cooperation for Enhanced Click-Through Rate Prediction at Taobao

Xu Chen, Zida Cheng, Yuangang Pan +6

Existing click-through rate (CTR) prediction works have studied the role of feature interaction through a variety of techniques. Each interaction technique exhibits its own strengt…

cs.CV2024

Turbo: Informativity-Driven Acceleration Plug-In for Vision-Language Large Models

Chen Ju, Haicheng Wang, Haozhe Cheng +6

Vision-Language Large Models (VLMs) recently become primary backbone of AI, due to the impressive performance. However, their expensive computation costs, i.e., throughput and dela…

cs.CV2024

Tunnel Try-on: Excavating Spatial-temporal Tunnels for High-quality Virtual Try-on in Videos

Zhengze Xu, Mengting Chen, Zhao Wang +6

Video try-on is a challenging task and has not been well tackled in previous works. The main obstacle lies in preserving the details of the clothing and modeling the coherent motio…

cs.CV2024

Cell Variational Information Bottleneck Network

Zhonghua Zhai, Chen Ju, Jinsong Lan +1

In this work, we propose Cell Variational Information Bottleneck Network (cellVIB), a convolutional neural network using information bottleneck mechanism, which can be combined wit…

cs.CV2024

Wear-Any-Way: Manipulable Virtual Try-on via Sparse Correspondence Alignment

Mengting Chen, Xi Chen, Zhonghua Zhai +4

This paper introduces a novel framework for virtual try-on, termed Wear-Any-Way. Different from previous methods, Wear-Any-Way is a customizable solution. Besides generating high-f…