Depending on your data you might also get better results by applying a random rotation to your vector before quantization. https://ieeexplore.ieee.org/abstract

Depending on your data you might also get better results by applying a random rotation to your vector before quantization. https://ieeexplore.ieee.org/abstract/document/6296665/ https://ieeexplore.ieee.org/abstract/document/6296665/ (https://refbase.cvc.uab.cat/files/GLG2012b.pdf https://refbase.cvc.uab.cat/files/GLG2012b.pdf)