Key;
Laboratory;
of;
Networking;
and;
Switching;
Technology,;
Beijing;
University;
of;
Posts;
and;
Telecommunications,;
Beijing;
100876,;
China;
of;
Information;
Science;
and;
Engineering,;
Northeastern;
University,;
Shenyang;
110819,;
China;
流量矩阵; 通信网络; 近似算法; 输出数据; 多层感知器; 骨干网络; 建模能力; 约束关系;