Hi all,
While waiting for the next OpenFHE release, I implemented some methods to perform inner product and vector-matrix multiplication using OpenFHE, such as column/row-based packing and alternate packing from POSEIDON (Sav et al.).
You can find the code/poc/draft here GitHub - FedericoMazzone/openfhe-ml
This is my first attempt at using OpenFHE (and actually C++), so be aware that the code is quite messy.