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- W4294618611 abstract "Learning representation for graph classification turns a variable-size graph into a fixed-size vector (or matrix). Such a representation works nicely with algebraic manipulations. Here we introduce a simple method to augment an attributed graph with a virtual node that is bidirectionally connected to all existing nodes. The virtual node represents the latent aspects of the graph, which are not immediately available from the attributes and local connectivity structures. The expanded graph is then put through any node representation method. The representation of the virtual node is then the representation of the entire graph. In this paper, we use the recently introduced Column Network for the expanded graph, resulting in a new end-to-end graph classification model dubbed Virtual Column Network (VCN). The model is validated on two tasks: (i) predicting bio-activity of chemical compounds, and (ii) finding software vulnerability from source code. Results demonstrate that VCN is competitive against well-established rivals." @default.
- W4294618611 created "2022-09-05" @default.
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- W4294618611 date "2017-08-14" @default.
- W4294618611 modified "2023-09-26" @default.
- W4294618611 title "Graph Classification via Deep Learning with Virtual Nodes" @default.
- W4294618611 doi "https://doi.org/10.48550/arxiv.1708.04357" @default.
- W4294618611 hasPublicationYear "2017" @default.
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