activity
20242026
most citedSIGformer: Sign-aware Graph Transformer for Recommendation

34 citations · 38 across the 11 of their papers we have counts for

collaborators

11 papers

cs.CL2026

Predict, Don't Iterate: Efficient Adaptive-Length Infilling for Diffusion Language Models

Haobo Xu, Sirui Chen, Yuanchen Bei +5

Diffusion language models (DLMs) have emerged as a promising alternative to the auto-regressive paradigm. With bidirectional attention and any-order generation, DLMs naturally fit…

cs.IR2026

Astar: Learning to Propose Evolution Directions for Self-Evolving Industrial AI Systems

Jinxin Hu, Hao Deng, Haibo Xing +12

Modern AI systems advance through continuous iteration: a loop of proposing evolution directions, implementing code, training, and evaluation. While the latter three stages are inc…

cs.IR2026

Trustworthy Recommendation in the Era of Large Language Models: Opportunities and Challenges

Bohao Wang, Yu Cui, Zhenxiang Xu +13

The field of recommender systems (RS) is currently undergoing two profound paradigm shifts. From the perspective of objectives, the goal has shifted beyond mere recommendation accu…

cs.IR2026

Trie-Aware Transformers for Generative Recommendation

Zhenxiang Xu, Jiawei Chen, Sirui Chen +5

Generative recommendation (GR) aligns with advances in generative AI by casting next-item prediction as token-level generation rather than score-based ranking. Most GR methods adop…

cs.LG2026

Influence-Preserving Proxies for Gradient-Based Data Selection in LLM Fine-tuning

Sirui Chen, Yunzhe Qi, Mengting Ai +4

Supervised fine-tuning (SFT) relies critically on selecting training data that most benefits a model's downstream performance. Gradient-based data selection methods such as TracIn…

cs.IR2026

TopKGAT: A Top-K Objective-Driven Architecture for Recommendation

Sirui Chen, Jiawei Chen, Canghong Jin +4

Recommendation systems (RS) aim to retrieve the top-K items most relevant to users, with metrics such as Precision@K and Recall@K commonly used to assess effectiveness. The archite…

cs.DC2025

Mesh-Attention: A New Communication-Efficient Distributed Attention with Improved Data Locality

Sirui Chen, Jingji Chen, Siqi Zhu +3

Distributed attention is essential for scaling large language models (LLMs) to long contexts, yet existing methods either have limited parallelism or incur high communication costs…

cs.CL2025

Arrows of Math Reasoning Data Synthesis for Large Language Models: Diversity, Complexity and Correctness

Sirui Chen, Changxin Tian, Binbin Hu +4

Enhancing the mathematical reasoning of large language models (LLMs) demands high-quality training data, yet conventional methods face critical challenges in scalability, cost, and…

cs.LG2025

OpenGT: A Comprehensive Benchmark For Graph Transformers

Jiachen Tang, Zhonghao Wang, Sirui Chen +3

Graph Transformers (GTs) have recently demonstrated remarkable performance across diverse domains. By leveraging attention mechanisms, GTs are capable of modeling long-range depend…

cs.IR2025★ 4 cited

Rankformer: A Graph Transformer for Recommendation based on Ranking Objective

Sirui Chen, Shen Han, Jiawei Chen +6

Recommender Systems (RS) aim to generate personalized ranked lists for each user and are evaluated using ranking metrics. Although personalized ranking is a fundamental aspect of R…

cs.IR2024★ 34 cited

SIGformer: Sign-aware Graph Transformer for Recommendation

Sirui Chen, Jiawei Chen, Sheng Zhou +5

In recommender systems, most graph-based methods focus on positive user feedback, while overlooking the valuable negative feedback. Integrating both positive and negative feedback…