activity
20232026
most citedCheatAgent: Attacking LLM-Empowered Recommender Systems via LLM Agent

19 citations · 55 across the 20 of their papers we have counts for

collaborators

22 papers

cs.CL2026

Evaluating LLMs on Conversational Text-to-SQL under Chain Ambiguity and Intent Drift

Yujia Liu, Jiayan Lin, Zijin Hong +6

Recent advances in large language models (LLMs) have established conversational text-to-SQL as a practical interface between users and databases, often involving multiple turns of…

cs.CL2026

Are These Modules Worth Their Cost? A Paradigm-Level Accuracy-Cost Analysis of In-context Learning Text-to-SQL

Jiayan Lin, Yujia Liu, Zijin Hong +6

Recent advances in in-context learning (ICL) text-to-SQL have substantially improved execution accuracy on public benchmarks by assembling increasingly elaborate pipelines around t…

cs.CL2026★ 1 cited

ErrorLLM: Modeling SQL Errors for Text-to-SQL Refinement

Zijin Hong, Hao Chen, Zheng Yuan +6

Despite the remarkable performance of large language models (LLMs) in text-to-SQL (SQL generation), correctly producing SQL queries remains challenging during initial generation. T…

cs.CV2026

The Semantic Lifecycle in Embodied AI: Acquisition, Representation and Storage via Foundation Models

Shuai Chen, Hao Chen, Yuanchen Bei +3

Semantic information in embodied AI is inherently multi-source and multi-stage, making it challenging to fully leverage for achieving stable perception-to-action loops in real-worl…

cs.IR2025

Macro Graph of Experts for Billion-Scale Multi-Task Recommendation

Hongyu Yao, Zijin Hong, Hao Chen +6

Graph-based multi-task learning at billion-scale presents a significant challenge, as different tasks correspond to distinct billion-scale graphs. Traditional multi-task learning m…

cs.IR2025

AliBoost: Ecological Boosting Framework in Alibaba Platform

Qijie Shen, Yuanchen Bei, Zihong Huang +8

Maintaining a healthy ecosystem in billion-scale online platforms is challenging, as users naturally gravitate toward popular items, leaving cold and less-explored items behind. Th…

cs.CR2025★ 19 cited

CheatAgent: Attacking LLM-Empowered Recommender Systems via LLM Agent

Liang-bo Ning, Shijie Wang, Wenqi Fan +4

Recently, Large Language Model (LLM)-empowered recommender systems (RecSys) have brought significant advances in personalized user experience and have attracted considerable attent…

cs.IR2025

FilterLLM: Text-To-Distribution LLM for Billion-Scale Cold-Start Recommendation

Ruochen Liu, Hao Chen, Yuanchen Bei +6

Large Language Model (LLM)-based cold-start recommendation systems continue to face significant computational challenges in billion-scale scenarios, as they follow a "Text-to-Judgm…

cs.CL2025

Knapsack Optimization-based Schema Linking for LLM-based Text-to-SQL Generation

Zheng Yuan, Hao Chen, Zijin Hong +4

Generating SQLs from user queries is a long-standing challenge, where the accuracy of initial schema linking significantly impacts subsequent SQL generation performance. However, c…

cs.IR2025★ 2 cited

Cold-Start Recommendation towards the Era of Large Language Models (LLMs): A Comprehensive Survey and Roadmap

Weizhi Zhang, Yuanchen Bei, Liangwei Yang +15

Cold-start problem is one of the long-standing challenges in recommender systems, focusing on accurately modeling new or interaction-limited users or items to provide better recomm…

cs.CL2025

Benchmarking LLMs' Mathematical Reasoning with Unseen Random Variables Questions

Zijin Hong, Hao Wu, Su Dong +8

Recent studies have raised significant concerns regarding the reliability of current mathematics benchmarks, highlighting issues such as simplistic design and potential data contam…

cs.IR2024

Graph Cross-Correlated Network for Recommendation

Hao Chen, Yuanchen Bei, Wenbing Huang +3

Collaborative filtering (CF) models have demonstrated remarkable performance in recommender systems, which represent users and items as embedding vectors. Recently, due to the powe…

cs.AI2024

CLR-Bench: Evaluating Large Language Models in College-level Reasoning

Junnan Dong, Zijin Hong, Yuanchen Bei +3

Large language models (LLMs) have demonstrated their remarkable performance across various language understanding tasks. While emerging benchmarks have been proposed to evaluate LL…

cs.IR2024

Graph Neural Patching for Cold-Start Recommendations

Hao Chen, Yu Yang, Yuanchen Bei +3

The cold start problem in recommender systems remains a critical challenge. Current solutions often train hybrid models on auxiliary data for both cold and warm users/items, potent…

cs.IR2024

Feedback Reciprocal Graph Collaborative Filtering

Weijun Chen, Yuanchen Bei, Qijie Shen +3

Collaborative filtering on user-item interaction graphs has achieved success in the industrial recommendation. However, recommending users' truly fascinated items poses a seesaw di…

cs.CL2024★ 17 cited

Next-Generation Database Interfaces: A Survey of LLM-based Text-to-SQL

Zijin Hong, Zheng Yuan, Qinggang Zhang +4

Generating accurate SQL from users' natural language questions (text-to-SQL) remains a long-standing challenge due to the complexities involved in user question understanding, data…

cs.DB2024★ 6 cited

Structure Guided Large Language Model for SQL Generation

Qinggang Zhang, Hao Chen, Junnan Dong +3

Recent advancements in large language models (LLMs) have shown promise in bridging the gap between natural language queries and database management systems, enabling users to inter…

cs.CL2024★ 2 cited

Knowledge-to-SQL: Enhancing SQL Generation with Data Expert LLM

Zijin Hong, Zheng Yuan, Hao Chen +3

Generating accurate SQL queries for user questions (text-to-SQL) has been a long-standing challenge since it requires a deep understanding of both the user's question and the corre…

cs.IR2024★ 6 cited

Large Language Model Simulator for Cold-Start Recommendation

Feiran Huang, Yuanchen Bei, Zhenghang Yang +6

Recommending cold items remains a significant challenge in billion-scale online recommendation systems. While warm items benefit from historical user behaviors, cold items rely sol…

cs.IR2024★ 1 cited

Multi-Behavior Collaborative Filtering with Partial Order Graph Convolutional Networks

Yijie Zhang, Yuanchen Bei, Hao Chen +6

Representing information of multiple behaviors in the single graph collaborative filtering (CF) vector has been a long-standing challenge. This is because different behaviors natur…

cs.IR2024★ 1 cited

Macro Graph Neural Networks for Online Billion-Scale Recommender Systems

Hao Chen, Yuanchen Bei, Qijie Shen +6

Predicting Click-Through Rate (CTR) in billion-scale recommender systems poses a long-standing challenge for Graph Neural Networks (GNNs) due to the overwhelming computational comp…

cs.IR2023

Alleviating Behavior Data Imbalance for Multi-Behavior Graph Collaborative Filtering

Yijie Zhang, Yuanchen Bei, Shiqi Yang +4

Graph collaborative filtering, which learns user and item representations through message propagation over the user-item interaction graph, has been shown to effectively enhance re…