activity
20232025
most citedDiscovering Communication Pattern Shifts in Large-Scale Labeled Networks using Encoder Embedding and Vertex Dynamics

11 citations · 24 across the 4 of their papers we have counts for

collaborators

6 papers

cs.IR2025

Optimizing open-domain question answering with graph-based retrieval augmented generation

Joyce Cahoon, Prerna Singh, Nick Litombe +6

In this work, we benchmark various graph-based retrieval-augmented generation (RAG) systems across a broad spectrum of query types, including OLTP-style (fact-based) and OLAP-style…

cs.SI2025★ 4 cited

Principal Graph Encoder Embedding and Principal Community Detection

Cencheng Shen, Yuexiao Dong, Carey E. Priebe +3

In this paper, we introduce the concept of principal communities and propose a principal graph encoder embedding method that concurrently detects these communities and achieves ver…

cs.SI2024★ 2 cited

Refined Graph Encoder Embedding via Self-Training and Latent Community Recovery

Cencheng Shen, Jonathan Larson, Ha Trinh +1

This paper introduces a refined graph encoder embedding method, enhancing the original graph encoder embedding through linear transformation, self-training, and hidden community re…

cs.CL2024

From Local to Global: A Graph RAG Approach to Query-Focused Summarization

Darren Edge, Ha Trinh, Newman Cheng +7

The use of retrieval-augmented generation (RAG) to retrieve relevant information from an external knowledge source enables large language models (LLMs) to answer questions over pri…

cs.SI2023★ 11 cited

Discovering Communication Pattern Shifts in Large-Scale Labeled Networks using Encoder Embedding and Vertex Dynamics

Cencheng Shen, Jonathan Larson, Ha Trinh +3

Analyzing large-scale time-series network data, such as social media and email communications, poses a significant challenge in understanding social dynamics, detecting anomalies,…

cs.SI2023★ 7 cited

Synergistic Graph Fusion via Encoder Embedding

Cencheng Shen, Carey E. Priebe, Jonathan Larson +1

In this paper, we introduce a method called graph fusion embedding, designed for multi-graph embedding with shared vertex sets. Under the framework of supervised learning, our meth…