activity
20232026
most citedSIGformer: Sign-aware Graph Transformer for Recommendation

34 citations · 95 across the 24 of their papers we have counts for

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12 papers · 1 filter

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

Making Collaborative Signals Count: Graph-Aware Large Language Models for Sequential Recommendation

Fenglin Yan, Bohao Wang, Jian Zhang +5

Large language models (LLMs) have been widely adopted as backbones for recommender systems. However, their language-centric pretraining makes it difficult to capture collaborative…

cs.IR2026

SmartGR: Hierarchy and Beam-Aware Knowledge Distillation for Generative Recommendation

Ziheng Zhang, Yu Cui, Bohao Wang +6

Generative recommendation (GR) has emerged as a promising paradigm for recommender systems. Scaling up GR models can improve recommendation performance, but it also substantially i…

cs.IR2026

LBR: Towards Mitigating Length Bias in Large Language Models for Recommendation

Hongchen Li, Bohao Wang, Jingbang Chen +5

Large language models (LLMs) have recently emerged as powerful backbones for recommender systems by reformulating recommendation as a token-level generation task. Despite their pro…

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

BEAR: Towards Beam-Search-Aware Optimization for Recommendation with Large Language Models

Weiqin Yang, Bohao Wang, Zhenxiang Xu +5

Recent years have seen a rapid surge in research leveraging Large Language Models (LLMs) for recommendation. These methods typically employ supervised fine-tuning (SFT) to adapt LL…

cs.IR2025

Does LLM Focus on the Right Words? Mitigating Context Bias in LLM-based Recommenders

Bohao Wang, Jiawei Chen, Feng Liu +5

Large language models (LLMs), owing to their extensive open-domain knowledge and semantic reasoning capabilities, have been increasingly integrated into recommender systems (RS). H…

cs.IR2025

MSL: Not All Tokens Are What You Need for Tuning LLM as a Recommender

Bohao Wang, Feng Liu, Jiawei Chen +7

Large language models (LLMs), known for their comprehension capabilities and extensive knowledge, have been increasingly applied to recommendation systems (RS). Given the fundament…

cs.IR2024

LLM4DSR: Leveraging Large Language Model for Denoising Sequential Recommendation

Bohao Wang, Feng Liu, Changwang Zhang +8

Sequential Recommenders generate recommendations based on users' historical interaction sequences. However, in practice, these collected sequences are often contaminated by noisy i…

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…

cs.IR2024★ 26 cited

Distillation Matters: Empowering Sequential Recommenders to Match the Performance of Large Language Model

Yu Cui, Feng Liu, Pengbo Wang +5

Owing to their powerful semantic reasoning capabilities, Large Language Models (LLMs) have been effectively utilized as recommenders, achieving impressive performance. However, the…

cs.IR2024

Distributionally Robust Graph-based Recommendation System

Bohao Wang, Jiawei Chen, Changdong Li +6

With the capacity to capture high-order collaborative signals, Graph Neural Networks (GNNs) have emerged as powerful methods in Recommender Systems (RS). However, their efficacy of…