activity
20222026
most citedA Customized Text Sanitization Mechanism with Differential Privacy

30 citations · 101 across the 45 of their papers we have counts for

collaborators

47 papers

cs.IR2026

RALI@iKAT 2026: Retrieval-aware User Profile Denoising via Personalized Conversational Dense Retrieval

Yuchen Hui, Fengran Mo, Jia Ao Sun +3

Modern conversational information access systems continuously extract user information from conversations to build user profiles for personalized retrieval. As user profiles accumu…

cs.CL2026

Search-on-Graph-R1: Training Large Language Models to Search Knowledge Graphs with Reinforcement Learning

Jia Ao Sun, Hao Yu, Fengran Mo +4

Knowledge graph question answering (KGQA) requires navigating from topic entities to an answer several relations away. Recent methods prompt a frontier LLM to explore the graph thr…

cs.IR2026

Learning to Route Queries to Heads for Attention-based Re-ranking with Large Language Models

Yuxing Tian, Fengran Mo, Zhiqi Huang +2

Large Language Models (LLMs) have recently been explored as fine-grained zero-shot re-rankers by leveraging attention signals to estimate document relevance. However, existing meth…

cs.CL2026

ReAttn: Improving Attention-based Re-ranking via Attention Re-weighting

Yuxing Tian, Fengran Mo, Weixu Zhang +2

The strong capabilities of recent Large Language Models (LLMs) have made them highly effective for zero-shot re-ranking task. Attention-based re-ranking methods, which derive relev…

cs.LG2026

Learning Discriminative and Generalizable Anomaly Detector for Dynamic Graph with Limited Supervision

Yuxing Tian, Yiyan Qi, Fengran Mo +3

Dynamic graph anomaly detection is critical for many real-world applications but remains challenging due to the scarcity of labeled anomalies. Existing methods are either unsupervi…

cs.AI2026

Conv-FinRe: A Conversational and Longitudinal Benchmark for Utility-Grounded Financial Recommendation

Yan Wang, Yi Han, Lingfei Qian +11

Most recommendation benchmarks evaluate how well a model imitates user behavior. In financial advisory, however, observed actions can be noisy or short-sighted under market volatil…

cs.CL2026★ 1 cited

OpenDecoder: Open Large Language Model Decoding to Incorporate Document Quality in RAG

Fengran Mo, Zhan Su, Yuchen Hui +6

The development of large language models (LLMs) has achieved superior performance in a range of downstream tasks, including LLM-based retrieval-augmented generation (RAG). The qual…

cs.CL2026

Language-Coupled Reinforcement Learning for Multilingual Retrieval-Augmented Generation

Rui Qi, Fengran Mo, Yufeng Chen +6

Multilingual retrieval-augmented generation (MRAG) requires models to effectively acquire and integrate beneficial external knowledge from multilingual collections. However, most e…

cs.CL2026

When Helpers Become Hazards: A Benchmark for Analyzing Multimodal LLM-Powered Safety in Daily Life

Xinyue Lou, Jinan Xu, Jingyi Yin +8

As Multimodal Large Language Models (MLLMs) become an indispensable assistant in human life, the unsafe content generated by MLLMs poses a danger to human behavior, perpetually ove…

cs.CL2025

Measuring the Impact of Lexical Training Data Coverage on Hallucination Detection in Large Language Models

Shuo Zhang, Fabrizio Gotti, Fengran Mo +1

Hallucination in large language models (LLMs) is a fundamental challenge, particularly in open-domain question answering. Prior work attempts to detect hallucination with model-int…

cs.CE2025★ 1 cited

CSMD: Curated Multimodal Dataset for Chinese Stock Analysis

Yu Liu, Zhuoying Li, Ruifeng Yang +2

The stock market is a complex and dynamic system, where it is non-trivial for researchers and practitioners to uncover underlying patterns and forecast stock movements. The existin…

cs.IR2025

Parametric Retrieval-Augmented Generation using Latent Routing of LoRA Adapters

Zhan Su, Fengran Mo, Jinghan Zhang +3

Parametric Retrieval-Augmented Generation (PRAG) is a RAG approach that integrates external knowledge directly into model parameters using a LoRA adapter, aiming at reducing the in…

cs.CL2025

SoT: Structured-of-Thought Prompting Guides Multilingual Reasoning in Large Language Models

Rui Qi, Zhibo Man, Yufeng Chen +3

Recent developments have enabled Large Language Models (LLMs) to engage in complex reasoning tasks through deep thinking. However, the capacity of reasoning has not been successful…

cs.CL2025

FinAuditing: A Financial Taxonomy-Structured Multi-Document Benchmark for Evaluating LLMs

Yan Wang, Keyi Wang, Shanshan Yang +12

Going beyond simple text processing, financial auditing requires detecting semantic, structural, and numerical inconsistencies across large-scale disclosures. As financial reports…

cs.CL2025★ 1 cited

Search-on-Graph: Iterative Informed Navigation for Large Language Model Reasoning on Knowledge Graphs

Jia Ao Sun, Hao Yu, Fabrizio Gotti +6

Large language models (LLMs) augmented with knowledge graphs (KGs) offer a promising approach for knowledge-intensive reasoning. Central to this approach is the selection of approp…

cs.IR2025

Boosting Data Utilization for Multilingual Dense Retrieval

Chao Huang, Fengran Mo, Yufeng Chen +5

Multilingual dense retrieval aims to retrieve relevant documents across different languages based on a unified retriever model. The challenge lies in aligning representations of di…

cs.IR2025

Adaptive Personalized Conversational Information Retrieval

Fengran Mo, Yuchen Hui, Yuxing Tian +5

Personalized conversational information retrieval (CIR) systems aim to satisfy users' complex information needs through multi-turn interactions by considering user profiles. Howeve…

cs.LG2025

Tensorized Clustered LoRA Merging for Multi-Task Interference

Zhan Su, Fengran Mo, Guojun Liang +4

Despite the success of the monolithic dense paradigm of large language models (LLMs), the LoRA adapters offer an efficient solution by fine-tuning small task-specific modules and m…

cs.IR2025

ConvMix: A Mixed-Criteria Data Augmentation Framework for Conversational Dense Retrieval

Fengran Mo, Jinghan Zhang, Yuchen Hui +4

Conversational search aims to satisfy users' complex information needs via multiple-turn interactions. The key challenge lies in revealing real users' search intent from the contex…

cs.CL2025

An Entity Linking Agent for Question Answering

Yajie Luo, Yihong Wu, Muzhi Li +5

Some Question Answering (QA) systems rely on knowledge bases (KBs) to provide accurate answers. Entity Linking (EL) plays a critical role in linking natural language mentions to KB…

cs.CL2025

Smooth Reading: Bridging the Gap of Recurrent LLM to Self-Attention LLM on Long-Context Tasks

Kai Liu, Zhan Su, Peijie Dong +4

Recently, recurrent large language models (Recurrent LLMs) with linear computational complexity have re-emerged as efficient alternatives to self-attention-based LLMs (Self-Attenti…

cs.IR2025

Conversational Search: From Fundamentals to Frontiers in the LLM Era

Fengran Mo, Chuan Meng, Mohammad Aliannejadi +1

Conversational search enables multi-turn interactions between users and systems to fulfill users' complex information needs. During this interaction, the system should understand t…

cs.CL2025★ 1 cited

FinTagging: Benchmarking LLMs for Extracting and Structuring Financial Information

Yan Wang, Lingfei Qian, Xueqing Peng +18

Accurate interpretation of numerical data in financial reports is critical for markets and regulators. Although XBRL (eXtensible Business Reporting Language) provides a standard fo…

cs.CL2025

Multilingual Collaborative Defense for Large Language Models

Hongliang Li, Jinan Xu, Gengping Cui +3

The robustness and security of large language models (LLMs) has become a prominent research area. One notable vulnerability is the ability to bypass LLM safeguards by translating h…