collaborators

12 papers

cs.AI2026

Dr. Free: You Don't Need Difficulty Rewards for Self-Evolving Search Agents

Zhipeng Qian, Zihan Liang, Yufei Ma +10

A central limitation of current data-free self-evolution methods for training search agents is their reliance on difficulty-based proposer rewards. These methods reward a proposer…

cs.IR2026

OneRetrieval: Unifying Multi-Branch E-commerce Retrieval with an Editable Generative Model

Xuxin Zhang, Ben Chen, Yue Lv +13

Industrial e-commerce search serves hundreds of millions of items through a multi-branch retrieval stage fused by hand-tuned merging without joint optimization. Generative retrieva…

cs.AI2026

Search-E1: Self-Distillation Drives Self-Evolution in Search-Augmented Reasoning

Zihan Liang, Yufei Ma, Ben Chen +4

Post-training has become the dominant recipe for turning a language model into a competent search-augmented reasoning agent. A line of recent work pushes its performance further by…

cs.AI2026

SVFSearch: A Multimodal Knowledge-Intensive Benchmark for Short-Video Frame Search in the Gaming Vertical Domain

Lingtao Mao, Huangyu Dai, Xinyu Sun +4

Multimodal large language models are increasingly used as agent backbones that understand multimodal inputs, plan retrieval actions, invoke external tools, and reason over retrieve…

cs.IR2026

TIGER-FG: Text-Guided Implicit Fine-Grained Grounding for E-commerce Retrieval

Xinyu Sun, Huangyu Dai, Lingtao Mao +5

E-commerce image search often takes a cropped image as the query, while each candidate is represented by full item images and structured text. This image-to-multimodal retrieval se…

cs.AI2026

SD-Search: On-Policy Hindsight Self-Distillation for Search-Augmented Reasoning

Yufei Ma, Zihan Liang, Ben Chen +6

Search-augmented reasoning agents interleave internal reasoning with calls to an external retriever, and their performance relies on the quality of each issued query. However, unde…

cs.AI2026

IG-Search: Step-Level Information Gain Rewards for Search-Augmented Reasoning

Zihan Liang, Yufei Ma, Ben Chen +6

Reinforcement learning has emerged as an effective paradigm for training large language models to perform search-augmented reasoning. However, existing approaches rely on trajector…

cs.IR2026

OneSearch-V2: The Latent Reasoning Enhanced Self-distillation Generative Search Framework

Ben Chen, Siyuan Wang, Yufei Ma +20

Generative Retrieval (GR) has emerged as a promising paradigm for modern search systems. Compared to multi-stage cascaded architecture, it offers advantages such as end-to-end join…

cs.CV2025

UniDGF: A Unified Detection-to-Generation Framework for Hierarchical Object Visual Recognition

Xinyu Nan, Lingtao Mao, Huangyu Dai +8

Achieving visual semantic understanding requires a unified framework that simultaneously handles object detection, category prediction, and attribute recognition. However, current…

cs.CV2025

OneVision: An End-to-End Generative Framework for Multi-view E-commerce Vision Search

Zexin Zheng, Huangyu Dai, Lingtao Mao +8

Traditional vision search, similar to search and recommendation systems, follows the multi-stage cascading architecture (MCA) paradigm to balance efficiency and conversion. Specifi…

cs.IR2025

InfoGain-RAG: Boosting Retrieval-Augmented Generation via Document Information Gain-based Reranking and Filtering

Zihan Wang, Zihan Liang, Zhou Shao +7

Retrieval-Augmented Generation (RAG) has emerged as a promising approach to address key limitations of Large Language Models (LLMs), such as hallucination, outdated knowledge, and…

cs.SD2025

H-PRM: A Pluggable Hotword Pre-Retrieval Module for Various Speech Recognition Systems

Huangyu Dai, Lingtao Mao, Ben Chen +5

Hotword customization is crucial in ASR to enhance the accuracy of domain-specific terms. It has been primarily driven by the advancements in traditional models and Audio large lan…