why use 1 bit to store 0

[DAVIDNEWGATE]

For example, for 4bit why don't we just use 15 to form quantized region, and another one such as 0000 to represent 0. Will unbalanced region influence INQ result?

[AojunZhou]

yes, for 4 bits, you can use 15 no-zero values + 0, unbalanced quantization doesn't influence INQ result, specifically, the INQ is very flexible，you can adjust bit-width according your task, for example , you can throw away 0，then, the 5 bits in INQ paper can be replaced by 4 bits.

[KangolHsu]

1. template double weightCluster(int weight,int M);
2. template double weightCluster_zero(float weight,int M);
   why this two method is all the same？
   the second one shoud contain 0？ @Zhouaojun