activity
20242026
most citedSocioVerse: A World Model for Social Simulation Powered by LLM Agents and A Pool of 10 Million Real-World Users

1 citations · 2 across the 12 of their papers we have counts for

collaborators

13 papers

cs.IR2026

IDProxy: CTR Prediction with Multimodal LLMs for Cold-Start Recommendation at Xiaohongshu

Yubin Zhang, Haiming Xu, Guillaume Salha-Galvan +6

Content-driven platforms such as Xiaohongshu often leverage click-through rate (CTR) prediction models for recommendation. However, these models depend heavily on item ID embedding…

cs.LG2026

SAGE: Sequence-level Adaptive Gradient Evolution for Generative Recommendation

Yu Xie, Xing Kai Ren, Ying Qi +1

Reinforcement learning-based preference optimization is increasingly used to align list-wise generative recommenders with complex, multi-objective user feedback, yet existing optim…

cs.IR2026

LASER: An Efficient Target-Aware Segmented Attention Framework for End-to-End Long Sequence Modeling

Tianhe Lin, Ziwei Xiong, Baoyuan Ou +8

Modeling ultra-long user behavior sequences is pivotal for capturing evolving and lifelong interests in modern recommendation systems. However, deploying such models in real-time i…

cs.IR2026

QP-OneModel: A Unified Generative LLM for Multi-Task Query Understanding in Xiaohongshu Search

Jianzhao Huang, Xiaorui Huang, Fei Zhao +9

Query Processing (QP) bridges user intent and content supply in large-scale Social Network Service (SNS) search engines. Traditional QP systems rely on pipelines of isolated discri…

cs.GT2026

Guiding the Recommender: Information-Aware Auto-Bidding for Content Promotion

Yumou Liu, Zhenzhe Zheng, Jiang Rong +3

Modern content platforms offer paid promotion to mitigate cold start by allocating exposure via auctions. Our empirical analysis reveals a counterintuitive flaw in this paradigm: w…

cs.CL2026

Benchmark^2: Systematic Evaluation of LLM Benchmarks

Qi Qian, Chengsong Huang, Jingwen Xu +13

The rapid proliferation of benchmarks for evaluating large language models (LLMs) has created an urgent need for systematic methods to assess benchmark quality itself. We propose B…

cs.LG2026

Robust Tool Use via Fission-GRPO: Learning to Recover from Execution Errors

Zhiwei Zhang, Fei Zhao, Rui Wang +6

Large language models (LLMs) can call tools effectively, yet they remain brittle in multi-turn execution: after a tool-call error, smaller models often fall into repetitive invalid…

cs.CV2025

ReMatch: Boosting Representation through Matching for Multimodal Retrieval

Qianying Liu, Xiao Liang, Zhiqiang Zhang +6

We present ReMatch, a framework that leverages the generative strength of MLLMs for multimodal retrieval. Previous approaches treated an MLLM as a simple encoder, ignoring its gene…

cs.IR2025

HyMiRec: A Hybrid Multi-interest Learning Framework for LLM-based Sequential Recommendation

Jingyi Zhou, Cheng Chen, Kai Zuo +5

Large language models (LLMs) have recently demonstrated strong potential for sequential recommendation. However, current LLM-based approaches face critical limitations in modeling…

cs.IR2025

Cross-Scenario Unified Modeling of User Interests at Billion Scale

Manjie Xu, Cheng Chen, Xin Jia +9

User interests on content platforms are inherently diverse, manifesting through complex behavioral patterns across heterogeneous scenarios such as search, feed browsing, and conten…

cs.AI2025

RecLLM-R1: A Two-Stage Training Paradigm with Reinforcement Learning and Chain-of-Thought v1

Yu Xie, Xingkai Ren, Ying Qi +2

Traditional recommendation systems often grapple with "filter bubbles", underutilization of external knowledge, and a disconnect between model optimization and business policy iter…

cs.CL2025★ 1 cited

SocioVerse: A World Model for Social Simulation Powered by LLM Agents and A Pool of 10 Million Real-World Users

Xinnong Zhang, Jiayu Lin, Xinyi Mou +18

Social simulation is transforming traditional social science research by modeling human behavior through interactions between virtual individuals and their environments. With recen…

cs.IR2024★ 1 cited

GPRec: Bi-level User Modeling for Deep Recommenders

Yejing Wang, Dong Xu, Xiangyu Zhao +7

GPRec explicitly categorizes users into groups in a learnable manner and aligns them with corresponding group embeddings. We design the dual group embedding space to offer a divers…