Definition ∞ Graph Neural Networks (GNNs) are artificial intelligence models designed to process data structured as graphs. Unlike traditional neural networks, GNNs can learn representations of nodes and edges by considering their connections and attributes within a graph. This capability makes them particularly adept at tasks involving relationships, such as social network analysis or molecular structure prediction. In digital asset contexts, GNNs can be applied to detect fraudulent transactions or analyze blockchain network activity patterns.
Context ∞ The discussion surrounding Graph Neural Networks in crypto focuses on their utility for anomaly detection, identifying illicit activities, and optimizing routing in decentralized networks. A key debate involves overcoming the computational intensity of processing large-scale blockchain graphs and ensuring data privacy. Future developments will likely include more efficient GNN architectures and their broader application in decentralized finance for risk assessment and market surveillance.