activity
20232026
most citedPolygonGNN: Representation Learning for Polygonal Geometries with Heterogeneous Visibility Graph

13 citations · 31 across the 17 of their papers we have counts for

collaborators

18 papers

cs.LG2026

Software World Models: From Consequence Prediction to Decision Value

Tongli Su, Yuntong Hu, Liang Zhao +3

A coding agent may safely modify one repository while silently breaking downstream services, libraries, or datastores that depend on it. Exhaustively running integration tests afte…

cs.CL2026

Towards Automatic Evolution Tree Generation from Citation Graphs

Zexing Zhao, Yuntong Hu, Liang Zhao

Surveys remain the primary way researchers grasp the lineage of methods within an AI subfield, but they scale poorly against the current rate of publication. Existing taxonomy-indu…

cs.IR2026

LARGER: Lexically Anchored Repository Graph Exploration and Retrieval

Yuntong Hu, Tongli Su, Liang Zhao +2

Repository-level coding agents must first localize the files and symbols relevant to a task; failures at this stage can cascade across downstream objectives ranging from patch gene…

cs.IR2026

RAG without Forgetting: Continual Query-Infused Key Memory

Yuntong Hu, Sha Li, Naren Ramakrishnan +1

Retrieval-augmented generation (RAG) systems commonly improve robustness via query-time adaptations such as query expansion and iterative retrieval. While effective, these approach…

cs.LG2025

Multimodal Representation Learning Conditioned on Semantic Relations

Yang Qiao, Yuntong Hu, Bowen Zhu +2

Multimodal representation learning has been largely driven by contrastive models such as CLIP, which learn a shared embedding space by aligning paired image-text samples. While eff…

cs.LG2025

Network Tomography with Path-Centric Graph Neural Network

Yuntong Hu, Junxiang Wang, Liang Zhao

Network tomography is a crucial problem in network monitoring, where the observable path performance metric values are used to infer the unobserved ones, making it essential for ta…

cs.IR2025

CG-RAG: Research Question Answering by Citation Graph Retrieval-Augmented LLMs

Yuntong Hu, Zhihan Lei, Zhongjie Dai +4

Research question answering requires accurate retrieval and contextual understanding of scientific literature. However, current Retrieval-Augmented Generation (RAG) methods often s…

cs.LG2024

Transferable Unsupervised Outlier Detection Framework for Human Semantic Trajectories

Zheng Zhang, Hossein Amiri, Dazhou Yu +3

Semantic trajectories, which enrich spatial-temporal data with textual information such as trip purposes or location activities, are key for identifying outlier behaviors critical…

cs.LG2024

GraphNarrator: Generating Textual Explanations for Graph Neural Networks

Bo Pan, Zhen Xiong, Guanchen Wu +3

Graph representation learning has garnered significant attention due to its broad applications in various domains, such as recommendation systems and social network analysis. Despi…

cs.CL2024

Taxonomy Tree Generation from Citation Graph

Yuntong Hu, Zhuofeng Li, Zheng Zhang +4

Constructing taxonomies from citation graphs is essential for organizing scientific knowledge, facilitating literature reviews, and identifying emerging research trends. However, m…

cs.CV2024★ 13 cited

PolygonGNN: Representation Learning for Polygonal Geometries with Heterogeneous Visibility Graph

Dazhou Yu, Yuntong Hu, Yun Li +1

Polygon representation learning is essential for diverse applications, encompassing tasks such as shape coding, building pattern classification, and geographic question answering.…

cs.CL2024★ 2 cited

TEG-DB: A Comprehensive Dataset and Benchmark of Textual-Edge Graphs

Zhuofeng Li, Zixing Gou, Xiangnan Zhang +6

Text-Attributed Graphs (TAGs) augment graph structures with natural language descriptions, facilitating detailed depictions of data and their interconnections across various real-w…

cs.LG2024

TAGA: Text-Attributed Graph Self-Supervised Learning by Synergizing Graph and Text Mutual Transformations

Zheng Zhang, Yuntong Hu, Bo Pan +2

Text-Attributed Graphs (TAGs) enhance graph structures with natural language descriptions, enabling detailed representation of data and their relationships across a broad spectrum…

cs.SI2024

Link Prediction on Textual Edge Graphs

Chen Ling, Zhuofeng Li, Yuntong Hu +5

Textual-edge Graphs (TEGs), characterized by rich text annotations on edges, are increasingly significant in network science due to their ability to capture rich contextual informa…

cs.LG2024★ 10 cited

GRAG: Graph Retrieval-Augmented Generation

Yuntong Hu, Zhihan Lei, Zheng Zhang +3

Naive Retrieval-Augmented Generation (RAG) focuses on individual documents during retrieval and, as a result, falls short in handling networked documents which are very popular in…

cs.CL2024★ 4 cited

ELAD: Explanation-Guided Large Language Models Active Distillation

Yifei Zhang, Bo Pan, Chen Ling +2

The deployment and application of Large Language Models (LLMs) is hindered by their memory inefficiency, computational demands, and the high costs of API inferences. Traditional di…

cs.CL2024

Distilling Large Language Models for Text-Attributed Graph Learning

Bo Pan, Zheng Zhang, Yifei Zhang +2

Text-Attributed Graphs (TAGs) are graphs of connected textual documents. Graph models can efficiently learn TAGs, but their training heavily relies on human-annotated labels, which…

cs.LG2023★ 2 cited

Beyond Text: A Deep Dive into Large Language Models' Ability on Understanding Graph Data

Yuntong Hu, Zheng Zhang, Liang Zhao

Large language models (LLMs) have achieved impressive performance on many natural language processing tasks. However, their capabilities on graph-structured data remain relatively…