Hyperparameter | Symbol | Value |
---|---|---|
Floating point precision | \(b\) | \(32\) bits |
Number of sEMG channels | \(I\) | \(8\) |
Number of decodable DoFs | \(J\) | \(2\) |
Envelope extraction filter length | \(W\) | \(0.5\) s |
Size of first encoder layer | \({2}^{K}\) | \(128\) |
Encoder network depth | \(N\) | \(5\) |
Code size | \({2}^{K-N+1}\) | \(8\) |
Decoders hidden layer size | \({2}^{S}\) | \(32\) |
Contractive loss weigh | \({\alpha }_{c}\) | \({10}^{-2}\) |
Adam hyperparameters | \(\upeta\) | \({10}^{-4}\) |
\({\beta }_{1}\) | \(0.9\) | |
\({\beta }_{2}\) | \(0.999\) | |
Corruptive noise variance | \({\sigma }^{2}\) | \({10}^{-1}\) |
Weight decay | \(\lambda\) | \({10}^{-6}\) |
Minibatch size | \(B\) | \({2}^{12}\) |
Validation set percentage | \(P\) | \(10\%\) |
Validation lookback | \(V\) | \(300\) |
Maximum number of iterations | \(M\) | \(5000\) |