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The learning engine in GraphScope (aka. GIE) has a simiary programming interface and functionlity with euler. They both support graph neural network training, e.g., GraphSAGE, GCN, GAT, etc. However there are many differences under the hood. 1. The programming model is different. Euler provides a message-passing style API to define new graph models, while GIE provides a sampling API first, and abstracts a batch of seed nodes or edges(named ‘ego’) and their receptive fields (multi-hops neighbors) as a "EgoGraph", which can be turned into a "EgoTensor" as features. 2. Euler implements operation on graphs as tensorflow ops, while GIE takes a more flexible design and doesn't couple with a specific machine learning framework. Upon the sampling interface, developer could build their GNN models using either tensorflow, pytorch or any other machine learning framework, and even for non-GNN tasks. 3. Most importantly, euler is just for graph learning. In graphscope, the learning engine could co-work with the analytical engine and with the interactive query. In real world cases usually so complicated and the problem is not just a GNN training task, and different dedicated systems may involve for different kinds of workload, that means users need to move and transform data back and forth between systems. In GraphScope, engines for different proposals share the same graph, and, live in the same jupyter notebook to delivery the ability of one-stop large-scale graph computation. That is more user-friendly for data scientists. |