From A Gentle Introduction to Graph Neural Network (Basics, DeepWalk, and GraphSage) by 黃功詳 Steeve Huang

…h the original equation, it removes the concatenation operation at line 5 in the above pseudo code. This operation can be viewed as a “skip-connection”, which later in the paper proved to largely improve the performance of the model.

From A Gentle Introduction to Graph Neural Network (Basics, DeepWalk, and GraphSage) by 黃功詳 Steeve Huang

Compared with the original equation, it removes the concatenation operation at line 5 in the above pseudo code. This operation can be viewed as a “skip-connection”, which later in the paper proved to largely imp…