Comments (6)
zezhishao
commented on June 10, 2024
为什么是合并NC呢？
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kpmokpmo
commented on June 10, 2024
为什么是合并NC呢？
额也许是我对情景理解的不对。我以为N和C基本是同质的，都是channel或feature。比如有N个电表，每个电表有C个字段这样的，所以认为NC应该合并。很多时序问题直接设定的时候就是B,C,L，没有第四个维度。
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zezhishao
commented on June 10, 2024
STID主要关注多元时序，N这个维度需要保留以添加Spatial Identity。
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kpmokpmo
commented on June 10, 2024
space embedding本来也是（N,hidden_dim），和(N,C）是类似的吧，都是特征维度的。L应该是length即窗口长度吧，LC合并了，窗口长度变C倍有点诡异。我以为BLNC是指batch,length,node,channel per node的意思。。
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zezhishao
commented on June 10, 2024
LC合并到一起并不是为了增大时间窗口。
LC合并到一起，是因为STID只用了一个全连接层做了Encoding，投射到d维度。直接合并LC方便全连接层做计算。
同样，你也可以使用任意的其他网络，比如RNN/TCN把“Channel数为C的N个点"编码成d维的向量。这时候你就不能LC合并了。
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kpmokpmo
commented on June 10, 2024
嗯嗯，明白了，感谢指点：）
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Related Issues (18)
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