Learning Structural Manipulability in Gate-Level Netlists Using Graph Neural Networks
- URL: http://arxiv.org/abs/2607.16245v1
- Date: Fri, 26 Jun 2026 12:30:31 GMT
- Title: Learning Structural Manipulability in Gate-Level Netlists Using Graph Neural Networks
- Abstract summary: Gate-level netlists exhibit intrinsic structural properties that influence signal propagation independently of functional simulation.<n>We define a topology-driven structural manipulability score that characterizes node-level structural flexibility using path participation, k-core embedding, symmetry, and centrality.
- Score: 5.487972363969534
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: Gate-level netlists exhibit intrinsic structural properties that influence signal propagation independently of functional simulation. We define a topology-driven structural manipulability score that characterizes node-level structural flexibility using path participation, k-core embedding, symmetry, and centrality. Modeling netlists as directed graphs, we formulate node-level regression to learn this topology-derived score using graph neural networks (GNNs). Experiments on ISCAS85 and EPFL benchmarks evaluate how effectively different GNN architectures approximate this metric across held-out circuits, with hierarchical models yielding the most consistent rankings. Component-level and ablation analyses examine the contribution of individual factors. As an illustrative case study, analysis of Trojan-injected circuits using TrustHub templates reveals statistically distinguishable structural patterns, indicating that topology-based scoring provides complementary structural insight.
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