ZikangZhou / QCNet

[CVPR 2023] Query-Centric Trajectory Prediction
https://openaccess.thecvf.com/content/CVPR2023/papers/Zhou_Query-Centric_Trajectory_Prediction_CVPR_2023_paper.pdf
Apache License 2.0
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Question on attention pooling in Scene element embedding #46

Open cyty98 opened 3 months ago

cyty98 commented 3 months ago

In the "Scene Element Embedding" section of your paper, it is mentioned that attention-based pooling is used to convert point-level embeddings to polygon-level. In your implementation within the qcnet_map_encoder.py, it appears that attention pooling based on a graph neural network is employed. How does this differ from the traditional multi-head attention pooling layer? Where did you get the inspiration for this approach? I look forward to your response.