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- W4308288307 abstract "While Graph Neural Networks (GNNs) have recently become the de facto standard for modeling relational data, they impose a strong assumption on the availability of the node or edge features of the graph. In many real-world applications, however, features are only partially available; for example, in social networks, age and gender are available only for a small subset of users. We present a general approach for handling missing features in graph machine learning applications that is based on minimization of the Dirichlet energy and leads to a diffusion-type differential equation on the graph. The discretization of this equation produces a simple, fast and scalable algorithm which we call Feature Propagation. We experimentally show that the proposed approach outperforms previous methods on seven common node-classification benchmarks and can withstand surprisingly high rates of missing features: on average we observe only around 4% relative accuracy drop when 99% of the features are missing. Moreover, it takes only 10 seconds to run on a graph with $sim$2.5M nodes and $sim$123M edges on a single GPU." @default.
- W4308288307 created "2022-11-10" @default.
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- W4308288307 date "2021-11-23" @default.
- W4308288307 modified "2023-10-16" @default.
- W4308288307 title "On the Unreasonable Effectiveness of Feature propagation in Learning on Graphs with Missing Node Features" @default.
- W4308288307 doi "https://doi.org/10.48550/arxiv.2111.12128" @default.
- W4308288307 hasPublicationYear "2021" @default.
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