An IP address serves two principal functions: host or network interface identification and location addressing.
IP地址用于两个主要功能：主机或网络接口标识和位置寻址。
2
Through principal component analysis, we have synthesized numerous indexes, (eliminated) information overlapping of the sample, and reduced the input dimension of BP network.
通过主成分分析法将众多指标进行综合，消除样本间的信息重叠，降低BP网络的输入维数。
3
Principal Fission is defined as the reality of society based on computing network, which exists while the virtual society is, symbolized.