← heapsort-ai

Graph Neural Networks

30 items

RESEARCHarXiv CS.AI·5/7/2026

Actionable Real-Time Modeling of Surgical Team Dynamics via Time-Expanded Interaction Graphs

This paper proposes a real-time actionable approach for modeling surgical team dynamics using time-expanded interaction graphs. The model enables efficient inference with a static graph neural network, predicting procedural efficiency and supporting counterfactual analysis to identify changes in communication structure.

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RESEARCHarXiv CS.LG·28d ago

Path-Based Gradient Boosting for Graph-Level Prediction

We propose PathBoost, a gradient tree boosting method for graph-level classification and regression, which learns discriminative path-based features directly from the input graph structure. This method introduces adaptations for binary classification, incorporates multiple node and edge attributes, and automatically selects anchor nodes, outperforming or matching graph neural networks and graph kernel approaches on several benchmark datasets.

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RESEARCHarXiv CS.LG·22d ago

Mask-Morph Graph U-Net: A Generalisable Mesh-Based Surrogate for Crashworthiness Field Prediction under Large Geometric Variation

This paper introduces Mask-Morph Graph U-Net (MMGUNet), a practical approach addressing the limitation of hierarchical Graph U-Net architectures in crash simulations. It aims to improve generalisability by retaining fixed coarse graph connectivity while improving spatial correspondence, offering a faster alternative to computationally expensive finite element methods.

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RESEARCHarXiv CS.LG·22d ago

Logical Grammar Induction via Graph Kolmogorov Complexity: A Neuro-Symbolic Framework for Self-Healing Clinical Data Integrity

This paper introduces Logic-GNN, a neuro-symbolic framework that leverages Temporal Graph Neural Networks and Graph Kolmogorov Complexity to detect data entry errors in clinical records. It identifies anomalies as "grammatical violations" in a latent logical grammar of medical interactions, achieving an F1-score of 0.94 on a large clinical dataset.

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RESEARCHarXiv CS.LG·27d ago

Structural Interpretations of Protein Language Model Representations via Differentiable Graph Partitioning

This research proposes a framework to interpret protein language model representations by projecting them onto protein contact graphs and applying SoftBlobGIN, a Graph Isomorphism Network. This method performs structure-aware message passing to learn functional substructures, achieving 92.8% accuracy in enzyme classification and providing auditable structural explanations.

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RESEARCHarXiv CS.LG·4/6/2026

Homophily-aware Supervised Contrastive Counterfactual Augmented Fair Graph Neural Network

Este trabalho propõe um novo modelo para treinar Redes Neurais Gráficas (GNNs) sensíveis à justiça, aprimorando o framework CAF. A abordagem utiliza uma estratégia de treinamento em duas fases, editando o grafo para ajustar a homofilia e integrando perdas contrastivas e ambientais modificadas para melhorar a predição e a justiça.

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