A temporal graph is an undirected graph where each edge is associated with a timestamp representing the interaction time. As a fundamental problem in graph analysis, community search (CS) in temporal graphs has received tremendous research attention. Existing CS works on temporal graphs typically focus on identifying...
Yue Zhang, Ying-Li Zhou, Fang-Yuan Zhang et al.· Proceedings of the ACM on Ma...· 0 citations
This tutorial outlines the core pipeline stages of graph-based RAG and analyze them from a data management perspective, including graph modeling, graph repair, index construction and maintenance, and retrieval, rather than treating graph-based RAG solely as an LLM application.
Angela Bonifati, Yixiang Fang, Sibo Wang et al.· Proceedings of the VLDB Endo...· 0 citations
A novel community model, called temporal durable community (TDC), which is the temporal k -core with the longest duration in the temporal graph, is introduced, and two index structures that can quickly determine the duration of a given temporal k -core are developed, followed by query algorithms.
Ying-Li Zhou, Yi-Ge Jiang, Yixiang Fang et al.· Proceedings of the VLDB Endo...· 0 citations
PreGress is proposed, the first ranking-native pre-training and prompting framework for supporting a wide range of node ranking tasks, and designs lightweight, task-specific prompt modules that adapt a frozen ranking backbone to downstream tasks without full retraining.
Lujie Ban, Jiasheng Shi, Yingli Zhou et al.· 0 citations
This work presents DocMaster, a hierarchical structure-aware document analysis system that parses documents into hierarchical document trees preserving original layouts and constructs a structure-aware semantic index that enables accurate document filtering and in-depth analysis.
Ziqi Chen, Yingli Zhou, Fangyuan Zhang et al.· 0 citations
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