activity
20232026
most citedAIE: Auction Information Enhanced Framework for CTR Prediction in Online Advertising

5 citations · 12 across the 25 of their papers we have counts for

collaborators

26 papers

cs.IR2026

MuonRec: Shifting the Optimizer Paradigm Beyond Adam in Scalable Generative Recommendation

Rong Shan, Aofan Yu, Bo Chen +7

Recommender systems (RecSys) are increasingly emphasizing scaling, leveraging larger architectures and more interaction data to improve personalization. Yet, despite the optimizer'…

cs.IR2025

MassTool: A Multi-Task Search-Based Tool Retrieval Framework for Large Language Models

Jianghao Lin, Xinyuan Wang, Xinyi Dai +5

Tool retrieval is a critical component in enabling large language models (LLMs) to interact effectively with external tools. It aims to precisely filter the massive tools into a sm…

cs.IR2025

Generative Representational Learning of Foundation Models for Recommendation

Zheli Zhou, Chenxu Zhu, Jianghao Lin +4

Developing a single foundation model with the capability to excel across diverse tasks has been a long-standing objective in the field of artificial intelligence. As the wave of ge…

cs.CL2025

Evolutionary Perspectives on the Evaluation of LLM-Based AI Agents: A Comprehensive Survey

Jiachen Zhu, Menghui Zhu, Renting Rui +9

The advent of large language models (LLMs), such as GPT, Gemini, and DeepSeek, has significantly advanced natural language processing, giving rise to sophisticated chatbots capable…

cs.IR2025

InfoDeepSeek: Benchmarking Agentic Information Seeking for Retrieval-Augmented Generation

Yunjia Xi, Jianghao Lin, Menghui Zhu +10

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by grounding responses with retrieved information. As an emerging paradigm, Agentic RAG further enhances…

cs.IR2025

LLM4Tag: Automatic Tagging System for Information Retrieval via Large Language Models

Ruiming Tang, Chenxu Zhu, Bo Chen +4

Tagging systems play an essential role in various information retrieval applications such as search engines and recommender systems. Recently, Large Language Models (LLMs) have bee…

cs.IR2025

Full-Stack Optimized Large Language Models for Lifelong Sequential Behavior Comprehension in Recommendation

Rong Shan, Jiachen Zhu, Jianghao Lin +5

In this paper, we address the lifelong sequential behavior incomprehension problem in large language models (LLMs) for recommendation, where LLMs struggle to extract useful informa…

cs.IR2024

An Automatic Graph Construction Framework based on Large Language Models for Recommendation

Rong Shan, Jianghao Lin, Chenxu Zhu +7

Graph neural networks (GNNs) have emerged as state-of-the-art methods to learn from graph-structured data for recommendation. However, most existing GNN-based recommendation method…

cs.IR2024

LIBER: Lifelong User Behavior Modeling Based on Large Language Models

Chenxu Zhu, Shigang Quan, Bo Chen +7

CTR prediction plays a vital role in recommender systems. Recently, large language models (LLMs) have been applied in recommender systems due to their emergence abilities. While le…

cs.IR2024

Beyond Positive History: Re-ranking with List-level Hybrid Feedback

Muyan Weng, Yunjia Xi, Weiwen Liu +5

As the last stage of recommender systems, re-ranking generates a re-ordered list that aligns with the user's preference. However, previous works generally focus on item-level posit…

cs.IR2024

Efficient and Deployable Knowledge Infusion for Open-World Recommendations via Large Language Models

Yunjia Xi, Weiwen Liu, Jianghao Lin +8

Recommender systems (RSs) play a pervasive role in today's online services, yet their closed-loop nature constrains their access to open-world knowledge. Recently, large language m…

cs.IR2024★ 5 cited

AIE: Auction Information Enhanced Framework for CTR Prediction in Online Advertising

Yang Yang, Bo Chen, Chenxu Zhu +6

Click-Through Rate (CTR) prediction is a fundamental technique for online advertising recommendation and the complex online competitive auction process also brings many difficultie…

cs.IR2024★ 2 cited

Lifelong Personalized Low-Rank Adaptation of Large Language Models for Recommendation

Jiachen Zhu, Jianghao Lin, Xinyi Dai +6

We primarily focus on the field of large language models (LLMs) for recommendation, which has been actively explored recently and poses a significant challenge in effectively enhan…

cs.IR2024

Efficiency Unleashed: Inference Acceleration for LLM-based Recommender Systems with Speculative Decoding

Yunjia Xi, Hangyu Wang, Bo Chen +7

The past few years have witnessed a growing interest in LLM-based recommender systems (RSs), although their industrial deployment remains in a preliminary stage. Most existing depl…

cs.IR2024

All Roads Lead to Rome: Unveiling the Trajectory of Recommender Systems Across the LLM Era

Bo Chen, Xinyi Dai, Huifeng Guo +9

Recommender systems (RS) are vital for managing information overload and delivering personalized content, responding to users' diverse information needs. The emergence of large lan…

cs.IR2024

MemoCRS: Memory-enhanced Sequential Conversational Recommender Systems with Large Language Models

Yunjia Xi, Weiwen Liu, Jianghao Lin +4

Conversational recommender systems (CRSs) aim to capture user preferences and provide personalized recommendations through multi-round natural language dialogues. However, most exi…

cs.IR2024

ELCoRec: Enhance Language Understanding with Co-Propagation of Numerical and Categorical Features for Recommendation

Jizheng Chen, Kounianhua Du, Jianghao Lin +3

Large language models have been flourishing in the natural language processing (NLP) domain, and their potential for recommendation has been paid much attention to. Despite the int…

cs.IR2024

Large Language Models Make Sample-Efficient Recommender Systems

Jianghao Lin, Xinyi Dai, Rong Shan +4

Large language models (LLMs) have achieved remarkable progress in the field of natural language processing (NLP), demonstrating remarkable abilities in producing text that resemble…

cs.IR2024

DisCo: Towards Harmonious Disentanglement and Collaboration between Tabular and Semantic Space for Recommendation

Kounianhua Du, Jizheng Chen, Jianghao Lin +6

Recommender systems play important roles in various applications such as e-commerce, social media, etc. Conventional recommendation methods usually model the collaborative signals…

cs.IR2024★ 2 cited

LLM4Rerank: LLM-based Auto-Reranking Framework for Recommendations

Jingtong Gao, Bo Chen, Weiwen Liu +6

Reranking is a critical component in recommender systems, playing an essential role in refining the output of recommendation algorithms. Traditional reranking models have focused p…

cs.IR2024

FINED: Feed Instance-Wise Information Need with Essential and Disentangled Parametric Knowledge from the Past

Kounianhua Du, Jizheng Chen, Jianghao Lin +5

Recommender models play a vital role in various industrial scenarios, while often faced with the catastrophic forgetting problem caused by the fast shifting data distribution. To a…

cs.IR2024★ 2 cited

Retrieval-Oriented Knowledge for Click-Through Rate Prediction

Huanshuo Liu, Bo Chen, Menghui Zhu +5

Click-through rate (CTR) prediction is crucial for personalized online services. Sample-level retrieval-based models, such as RIM, have demonstrated remarkable performance. However…

cs.IR2024

Play to Your Strengths: Collaborative Intelligence of Conventional Recommender Models and Large Language Models

Yunjia Xi, Weiwen Liu, Jianghao Lin +5

The rise of large language models (LLMs) has opened new opportunities in Recommender Systems (RSs) by enhancing user behavior modeling and content understanding. However, current a…

cs.IR2024

Towards Efficient and Effective Unlearning of Large Language Models for Recommendation

Hangyu Wang, Jianghao Lin, Bo Chen +4

The significant advancements in large language models (LLMs) give rise to a promising research direction, i.e., leveraging LLMs as recommenders (LLMRec). The efficacy of LLMRec ari…