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From the 1 of 5 linked papers with an AI index.

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5 papers

cs.IR2026

KAMR: Grounding Generation via Knowledge-Aligned Multi-hop Retrieval

Xiaochen Wang, Yuan Zhong, Haoyu Wang +2

The paper presents KAMR, a knowledge‑aligned multi‑hop retriever that first identifies anchor graph triplets strongly tied to a query and then locally expands to connected evidence…

cs.AI2026

MKG-RAG-Bench: Benchmarking Retrieval in Multimodal Knowledge Graph-Augmented Generation

Xiaochen Wang, Bao Hoang, Han Liu +2

Retrieval-augmented generation (RAG) over knowledge graphs has emerged as a promising approach for grounding large language models, yet existing benchmarks largely overlook the cha…

cs.IR2025

GPR: Empowering Generation with Graph-Pretrained Retriever

Xiaochen Wang, Zongyu Wu, Yuan Zhong +3

Graph retrieval-augmented generation (GRAG) places high demands on graph-specific retrievers. However, existing retrievers often rely on language models pretrained on plain text, l…

cs.AI2025

MEDMKG: Benchmarking Medical Knowledge Exploitation with Multimodal Knowledge Graph

Xiaochen Wang, Yuan Zhong, Lingwei Zhang +3

Medical deep learning models depend heavily on domain-specific knowledge to perform well on knowledge-intensive clinical tasks. Prior work has primarily leveraged unimodal knowledg…

cs.LG2025

FEDKIM: Adaptive Federated Knowledge Injection into Medical Foundation Models

Xiaochen Wang, Jiaqi Wang, Houping Xiao +2

Foundation models have demonstrated remarkable capabilities in handling diverse modalities and tasks, outperforming conventional artificial intelligence (AI) approaches that are hi…