{ "

Train a Graph Attention Network v2 (GATv2) on Cora dataset

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\u5728 Cora \u6570\u636e\u96c6\u4e0a\u8bad\u7ec3\u56fe\u6ce8\u610f\u529b\u7f51\u7edc v2 (Gatv2)

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Configurations

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Since the experiment is same as GAT experiment but with GATv2 model we extend the same configs and change the model.

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\u914d\u7f6e

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\u7531\u4e8e\u5b9e\u9a8c\u4e0e GAT \u5b9e\u9a8c\u76f8\u540c\uff0c\u4f46\u4f7f\u7528 G ATv2 \u6a21\u578b\uff0c\u6211\u4eec\u6269\u5c55\u4e86\u76f8\u540c\u7684\u914d\u7f6e\u5e76\u66f4\u6539\u4e86\u6a21\u578b\u3002

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Graph Attention Network v2 (GATv2)

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This graph attention network has two graph attention layers.

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Graph \u6ce8\u610f\u529b\u7f51\u7edc v2 (GATv2)

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\u8fd9\u4e2a\u56fe\u5f62\u5173\u6ce8\u7f51\u7edc\u6709\u4e24\u4e2a\u56fe\u5f62\u5173\u6ce8\u5c42\u3002

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Create GATv2 model

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\u521b\u5efa GATv2 \u6a21\u578b

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Activation function

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\u6fc0\u6d3b\u529f\u80fd

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Activation function after first graph attention layer

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\u7b2c\u4e00\u4e2a\u56fe\u5f62\u5173\u6ce8\u5c42\u4e4b\u540e\u7684\u6fc0\u6d3b\u529f\u80fd

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Adam optimizer

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Adam \u4f18\u5316\u5668

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Apply dropout to the input

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\u5c06\u4e22\u5931\u5e94\u7528\u4e8e\u8f93\u5165

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Calculate configurations.

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\u8ba1\u7b97\u914d\u7f6e\u3002

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Create an experiment

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\u521b\u5efa\u5b9e\u9a8c

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Create configurations

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\u521b\u5efa\u914d\u7f6e

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Dropout

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\u8f8d\u5b66

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Final graph attention layer where we average the heads

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\u6700\u540e\u4e00\u5f20\u56fe\u5173\u6ce8\u5c42\uff0c\u6211\u4eec\u5e73\u5747\u5934\u90e8

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First graph attention layer

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\u7b2c\u4e00\u4e2a\u56fe\u5f62\u5173\u6ce8\u5c42

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First graph attention layer where we concatenate the heads

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\u6211\u4eec\u8fde\u63a5\u5934\u90e8\u7684\u7b2c\u4e00\u4e2a\u56fe\u5f62\u6ce8\u610f\u5c42

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Output layer (without activation) for logits

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logits \u7684\u8f93\u51fa\u5c42\uff08\u672a\u6fc0\u6d3b\uff09

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Run the training

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\u8fd0\u884c\u8bad\u7ec3

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Set the model

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\u8bbe\u7f6e\u6a21\u578b

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Start and watch the experiment

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\u5f00\u59cb\u89c2\u770b\u5b9e\u9a8c

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Whether to share weights for source and target nodes of edges

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\u662f\u5426\u5171\u4eab\u8fb9\u7684\u6e90\u8282\u70b9\u548c\u76ee\u6807\u8282\u70b9\u7684\u6743\u91cd

\n", "\n": "\n", "\n": "\n", "This trains is a Graph Attention Network v2 (GATv2) on Cora dataset": "\u8fd9\u5217\u706b\u8f66\u662f Cora \u6570\u636e\u96c6\u4e0a\u7684 Graph \u6ce8\u610f\u529b\u7f51\u7edc v2 (GATv2)", "Train a Graph Attention Network v2 (GATv2) on Cora dataset": "\u5728 Cora \u6570\u636e\u96c6\u4e0a\u8bad\u7ec3\u56fe\u5f62\u6ce8\u610f\u529b\u7f51\u7edc v2 (GATv2)" }