There are 2 repositories under signed-network topic.
A PyTorch implementation of "Signed Graph Convolutional Network" (ICDM 2018).
The algorithm based on the UBQP model (Aref et al. 2018) for computing the exact value of frustration index (also called line index of balance)
The algorithms for multilevel evaluation of balance in signed directed networks
The algorithm based on the XOR model (Aref et al. 2019) for computing the exact value of frustration index (also called line index of balance)