activity
20202026
most citedUltraGCN: Ultra Simplification of Graph Convolutional Networks for Recommendation

34 citations · 92 across the 30 of their papers we have counts for

collaborators

33 papers

cs.AI2026

RealWorldShop: Benchmarking and Improving Conversational Shopping Agents in Real-World E-commerce

Xinwei Yang, Kelong Mao, Yudong Guo +4

Large language models are reshaping ecommerce from static recommenders into interactive shopping assistants, yet real-world shopping requires session-level decision support: users…

cs.LG2026

Coding Agent Memory Post-training: Unlocking the Memory Potential of Pre-trained File Operations for Long-Horizon Tasks via Reinforcement Learning

Lirui Luo, Kelong Mao, Heming Xia +10

Language-model agents increasingly tackle long-horizon tasks whose interaction histories exceed the model's active context. Recent work has begun to use reinforcement learning to m…

cs.AI2026

Learning from Online User Feedback for Shopping Agents

Haobo Zhang, Kelong Mao, Sulong Xu +2

Large language model-based shopping agents are increasingly deployed in real-world e-commerce platforms, generating massive amounts of user interaction logs that provide valuable s…

cs.AI2026

ComBodied Agents: a New Paradigm of Human-Centric Agentic AI

Qianggang Ding, Xingyao Wang, Rui Feng +19

After an older adult misses a medication dose, a software agent can send another reminder and an embodied agent can bring the medication. Yet neither explains whether the person fo…

cs.AI2026

ComboShoppingBench: Evaluating LLM Agents for Budget-Constrained Basket Shopping with Coupons

Adrian Li, Kelong Mao, Yudong Guo +7

Real-world shopping often requires constructing a basket of complementary items rather than retrieving a single product. Such combo-shopping tasks arise in device setup, meal prepa…

cs.AI2026

SkillCoach: Self-Evolving Rubrics for Evaluating and Enhancing Agentic Skill-Use

Jiayin Zhu, Kelong Mao, Yudong Guo +4

Skills are becoming a reusable operational layer for LLM agents, encoding SOPs, domain rules, tool workflows, scripts, and validation routines. In realistic skill repositories, ove…

cs.IR2026

RecThinker: An Agentic Framework for Tool-Augmented Reasoning in Recommendation

Haobo Zhang, Yutao Zhu, Kelong Mao +2

Large Language Models (LLMs) have revolutionized recommendation agents by providing superior reasoning and flexible decision-making capabilities. However, existing methods mainly f…

cs.IR2026

ChatShopBuddy: Towards Reliable Conversational Shopping Agents via Reinforcement Learning

Yiruo Cheng, Kelong Mao, Tianhao Li +3

Conversational shopping agents represent a critical consumer-facing application of Large Language Model (LLM)-powered agents, yet how to effectively apply post-training Reinforceme…

cs.CL2025

UniGist: Towards General and Hardware-aligned Sequence-level Long Context Compression

Chenlong Deng, Zhisong Zhang, Kelong Mao +6

Large language models are increasingly capable of handling long-context inputs, but the memory overhead of key-value (KV) cache remains a major bottleneck for general-purpose deplo…

cs.CL2025

UniConv: Unifying Retrieval and Response Generation for Large Language Models in Conversations

Fengran Mo, Yifan Gao, Chuan Meng +9

The rapid advancement of conversational search systems revolutionizes how information is accessed by enabling the multi-turn interaction between the user and the system. Existing c…

cs.CL2024

A Silver Bullet or a Compromise for Full Attention? A Comprehensive Study of Gist Token-based Context Compression

Chenlong Deng, Zhisong Zhang, Kelong Mao +4

In this work, we provide a thorough investigation of gist-based context compression methods to improve long-context processing in large language models. We focus on two key questio…

cs.IR2024★ 2 cited

CORAL: Benchmarking Multi-turn Conversational Retrieval-Augmentation Generation

Yiruo Cheng, Kelong Mao, Ziliang Zhao +6

Retrieval-Augmented Generation (RAG) has become a powerful paradigm for enhancing large language models (LLMs) through external knowledge retrieval. Despite its widespread attentio…

cs.CL2024★ 3 cited

A Survey of Conversational Search

Fengran Mo, Kelong Mao, Ziliang Zhao +7

As a cornerstone of modern information access, search engines have become indispensable in everyday life. With the rapid advancements in AI and natural language processing (NLP) te…

cs.CL2024★ 5 cited

MemoRAG: Boosting Long Context Processing with Global Memory-Enhanced Retrieval Augmentation

Hongjin Qian, Zheng Liu, Peitian Zhang +4

Processing long contexts presents a significant challenge for large language models (LLMs). While recent advancements allow LLMs to handle much longer contexts than before (e.g., 3…

cs.CL2024★ 2 cited

Enabling Discriminative Reasoning in LLMs for Legal Judgment Prediction

Chenlong Deng, Kelong Mao, Yuyao Zhang +1

Legal judgment prediction is essential for enhancing judicial efficiency. In this work, we identify that existing large language models (LLMs) underperform in this domain due to ch…

cs.IR2024★ 2 cited

Aligning Query Representation with Rewritten Query and Relevance Judgments in Conversational Search

Fengran Mo, Chen Qu, Kelong Mao +4

Conversational search supports multi-turn user-system interactions to solve complex information needs. Different from the traditional single-turn ad-hoc search, conversational sear…

cs.CL2024

YuLan: An Open-source Large Language Model

Yutao Zhu, Kun Zhou, Kelong Mao +35

Large language models (LLMs) have become the foundation of many applications, leveraging their extensive capabilities in processing and understanding natural language. While many o…

cs.IR2024★ 2 cited

Learning Interpretable Legal Case Retrieval via Knowledge-Guided Case Reformulation

Chenlong Deng, Kelong Mao, Zhicheng Dou

Legal case retrieval for sourcing similar cases is critical in upholding judicial fairness. Different from general web search, legal case retrieval involves processing lengthy, com…

cs.IR2024★ 1 cited

CHIQ: Contextual History Enhancement for Improving Query Rewriting in Conversational Search

Fengran Mo, Abbas Ghaddar, Kelong Mao +4

In this paper, we study how open-source large language models (LLMs) can be effectively deployed for improving query rewriting in conversational search, especially for ambiguous qu…

cs.CL2024★ 3 cited

Are Long-LLMs A Necessity For Long-Context Tasks?

Hongjin Qian, Zheng Liu, Peitian Zhang +4

The learning and deployment of long-LLMs remains a challenging problem despite recent progresses. In this work, we argue that the long-LLMs are not a necessity to solve long-contex…

cs.IR2024★ 1 cited

ChatRetriever: Adapting Large Language Models for Generalized and Robust Conversational Dense Retrieval

Kelong Mao, Chenlong Deng, Haonan Chen +4

Conversational search requires accurate interpretation of user intent from complex multi-turn contexts. This paper presents ChatRetriever, which inherits the strong generalization…

cs.IR2024★ 1 cited

ConvSDG: Session Data Generation for Conversational Search

Fengran Mo, Bole Yi, Kelong Mao +3

Conversational search provides a more convenient interface for users to search by allowing multi-turn interaction with the search engine. However, the effectiveness of the conversa…

cs.CL2024★ 1 cited

Grounding Language Model with Chunking-Free In-Context Retrieval

Hongjin Qian, Zheng Liu, Kelong Mao +2

This paper presents a novel Chunking-Free In-Context (CFIC) retrieval approach, specifically tailored for Retrieval-Augmented Generation (RAG) systems. Traditional RAG systems ofte…

cs.IR2024★ 1 cited

Interpreting Conversational Dense Retrieval by Rewriting-Enhanced Inversion of Session Embedding

Yiruo Cheng, Kelong Mao, Zhicheng Dou

Conversational dense retrieval has shown to be effective in conversational search. However, a major limitation of conversational dense retrieval is their lack of interpretability,…