LibCity / Bigscity-LibCity

LibCity: An Open Library for Urban Spatial-temporal Data Mining
https://libcity.ai/
Apache License 2.0
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Question about dataset #409

Closed khchul closed 1 month ago

khchul commented 2 months ago

Hello, thank you for your great work! I've been trying to study in this field and I have some question about the dataset.

In raw data, the cost between the nodes vary from datasets, e.g. PeMSD4: 200~800, PeMSD3: 0.2~7. and I think this is due to different data sources.

However when constructing the graph, I believe the edge weights need to have an uniform format regardless of the data. For example, PeMSD4 and PeMSD3 need to have edge weights in range 0~1. If this is correct, can you explain how the normalization is applied and if not, can you tell me why?

Thank you !