activity
20232026
most citedConnecting the Dots: What Graph-Based Text Representations Work Best for Text Classification Using Graph Neural Networks?

6 citations · 6 across the 5 of their papers we have counts for

collaborators

5 papers

cs.CL2026

From Global to Local: Learning Context-Aware Graph Representations for Document Classification and Summarization

Ruangrin Ldallitsakool, Margarita Bugueño, Gerard de Melo

Recent NLP systems commonly represent documents as linear token sequences. Although this captures sequential order, it can hinder modeling long-range dependencies and global docume…

cs.CL2025

ReFACT: A Benchmark for Scientific Confabulation Detection with Positional Error Annotations

Yindong Wang, Martin Preiß, Margarita Bugueño +4

The mechanisms underlying scientific confabulation in Large Language Models (LLMs) remain poorly understood. We introduce ReFACT (Reddit False And Correct Texts), a benchmark of 1,…

cs.CL2025

Rethinking Graph-Based Document Classification: Learning Data-Driven Structures Beyond Heuristic Approaches

Margarita Bugueño, Gerard de Melo

In document classification, graph-based models effectively capture document structure, overcoming sequence length limitations and enhancing contextual understanding. However, most…

cs.CL2024

GraphLSS: Integrating Lexical, Structural, and Semantic Features for Long Document Extractive Summarization

Margarita Bugueño, Hazem Abou Hamdan, Gerard de Melo

Heterogeneous graph neural networks have recently gained attention for long document summarization, modeling the extraction as a node classification task. Although effective, these…

cs.CL2023★ 6 cited

Connecting the Dots: What Graph-Based Text Representations Work Best for Text Classification Using Graph Neural Networks?

Margarita Bugueño, Gerard de Melo

Given the success of Graph Neural Networks (GNNs) for structure-aware machine learning, many studies have explored their use for text classification, but mostly in specific domains…