jstmn / ikflow Goto Github PK
View Code? Open in Web Editor NEWOpen source implementation to the paper "IKFlow: Generating Diverse Inverse Kinematics Solutions"
Home Page: https://sites.google.com/view/ikflow/home
License: Other
Open source implementation to the paper "IKFlow: Generating Diverse Inverse Kinematics Solutions"
Home Page: https://sites.google.com/view/ikflow/home
License: Other
Thank you for your excellent work. If I want to train my own robot, what do I need to prepare
I have a question about the negative logarithmic likelihood function during code training. I found that the negative logarithmic likelihood function I was training had negative values.
Is this caused by my lack of normalization in processing the dataset? I did not modify the code for ikflow.
And when I looked at the code, I found that the
neg_log_likeli is defined by this code:
output, jac = self.nn_model.forward(x, c=conditional, jac=True)
zz = torch.sum(output**2, dim=1)
neg_log_likeli = 0.5 * zz - jac
loss = torch.mean(neg_log_likeli)
I didn't see the logarithmic operation for zz and jac here when watching Graph INN, nor did I see the softmax layer in the final output of the model. I have been troubled here for a long time, and I really hope to receive your explanation and assistance from the author.
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