CAST: Cross Attention based multimodal fusion of Structure and Text for materials property prediction

• URL: http://arxiv.org/abs/2502.06836v1
• Date: Thu, 06 Feb 2025 02:29:39 GMT
• Title: CAST: Cross Attention based multimodal fusion of Structure and Text for materials property prediction
• Authors: Jaewan Lee, Changyoung Park, Hongjun Yang, Sungbin Lim, Sehui Han,
• Abstract summary: Graph neural networks (GNNs) stand out due to their ability to represent crystal structures as graphs. These methods often lose critical global information, such as crystal systems and repetitive unit connectivity. We propose CAST, a cross-attention-based multimodal fusion model that integrates graph and text modalities to preserve essential material information.
• Score: 5.958532929795774
• License:
• Abstract: Recent advancements in AI have revolutionized property prediction in materials science and accelerating material discovery. Graph neural networks (GNNs) stand out due to their ability to represent crystal structures as graphs, effectively capturing local interactions and delivering superior predictions. However, these methods often lose critical global information, such as crystal systems and repetitive unit connectivity. To address this, we propose CAST, a cross-attention-based multimodal fusion model that integrates graph and text modalities to preserve essential material information. CAST combines node- and token-level features using cross-attention mechanisms, surpassing previous approaches reliant on material-level embeddings like graph mean-pooling or [CLS] tokens. A masked node prediction pretraining strategy further enhances atomic-level information integration. Our method achieved up to 22.9\% improvement in property prediction across four crystal properties including band gap compared to methods like CrysMMNet and MultiMat. Pretraining was key to aligning node and text embeddings, with attention maps confirming its effectiveness in capturing relationships between nodes and tokens. This study highlights the potential of multimodal learning in materials science, paving the way for more robust predictive models that incorporate both local and global information.

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