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Question about MDS code #14

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countywest opened this issue Jun 12, 2020 · 0 comments
Closed

Question about MDS code #14

countywest opened this issue Jun 12, 2020 · 0 comments

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@countywest
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Hello~ Thank you for sharing your nice work!
I have two questions about the MDS_cuda.cu file.

  1. In line 114, (float t = 5.0 * mean_mst_length[batch_index] * mean_mst_length[batch_index]; )
    I read your paper(arXiv ver.), and It seems that you used the mean_mst_length as parameter sigma(in the paper). But I can't understand why the coefficient is 5.0, not 2.0. Could you explain me about this?

  2. In line 130, (temp[k] += k < 8192 ? exp(-d / t) : exp(-d / t) * 2.0;)
    Could you explain me why this line is needed?
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@countywest