Hi there, I wanted to ask: is there a way

Question

Hi there, I wanted to ask: is there a way

to include an adjacency matrix as a feature in CatBoost? I want to use CatBoost rather than a graph neural network as I would also like to include categorical features however I am not sure how to do this.

#english #programming

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30.12.2021

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zeld

Ivan Lyzhin
Hi! I see 2 possible ways: 1) If you have a dense ...

Interesting and good to know!

0

30.12.2021

Isaac Автор вопроса

Ivan Lyzhin
Hi! I see 2 possible ways: 1) If you have a dense ...

Hi Ivan, Thanks for your reply. The order of my nodes is important as they represent a specific connection so I came up with this python solution based on option (1): v = np.tril_indices(adj.shape[0]) trilAdj = adj[v] This gives an Nx1 vector that I could then feed into CatBoost. Is this a good solution?

0

31.12.2021

Ivan Lyzhin · Accepted Answer

Ivan Lyzhin

Hi! I see 2 possible ways: 1) If you have a dense graph than for each of N vertices add N binary features. 2) If you have a sparse graph than for each vertex add a single “text” feature with space-separated adjacency list.

0

30.12.2021

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Hi there, I wanted to ask: is there a way

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