Web3.0技术可分为基础层技术、平台层技术、交互层技术。相较于Web2.0时代，Web3.0涉及细分技术类别更多、范围更广，其中区块链技术由于其去中心化的特征，成为Web3.0核心底层基础技术。
int SymmetricQuantizeWeight(const floatweight,const int size,int8_tquantizedWeight,float*scale,
const int channels,float weightClampValue){
/**对参数进行量化
*weight为乘上scale后的权重，
*quantizedWeight用于存放量化后的参数
*/
DCHECK((size%channels)==0)<<"weight size error!";
const int channelStride=size/channels;
const int quantizedMaxValue=weightClampValue;//127
for(int c=0;c<channels;++c){//对每个channel分别量化
const auto weightChannelStart=weight+c*channelStride;
auto quantizedWeightChannelStart=quantizedWeight+c*channelStride;
//获取该channel内最大最小值
auto minmaxValue=std::minmax_element(weightChannelStart,weightChannelStart+channelStride);
const float dataAbsMax=std::fmax(std::fabs(minmaxValue.first),std::fabs(minmaxValue.second));
float scaleDataToInt8=1.0f;
if(dataAbsMax==0){
scale[c]=0.0f;
}else{
//用于逆量化时对用的scale
scale[c]=dataAbsMax/quantizedMaxValue;
//映射到int8空间上的scale
scaleDataToInt8=quantizedMaxValue/dataAbsMax;
}
for(int i=0;i<channelStride;++i){
//将输入权重乘上scale映射到int8上之后，对不在[-127，127]区间的都截断设置为-127或者127.
const int32_t quantizedInt8Value=static_cast<int32_t>(roundf(weightChannelStart<i>*scaleDataToInt8));
quantizedWeightChannelStart<i>=
std::min(quantizedMaxValue,std::max(-quantizedMaxValue,quantizedInt8Value));
}功能及开发：yy625019
}
return 0;
}
