出处
《通讯和计算机（中英文版）》
2005年第5期1-5,共5页
Journal of Communication and Computer
基金
Acknowledgements： This work is supported by Youth Foundation of Jilin University （No. 419070100102）, NSFC of China Major Research Program 60496321, Basic Theory and Core Techniques of Non Canonical Knowledge
National Natural Science Foundation of China under Grant No. 60373098 and No. 60173006, the National High-Tech Research and Development Plan of China under Grant No.2003AA118020, the Major Program of Science and Technology Development Plan of Jilin Province under Grant No. 20020303, the Science and Technology Development Plan of Jilin Province under Grant No. 20030523.
