1. Lee D-H, Seo D-Y, Kim N-H, Lee J-Y (1998) Discovery and application of user access patterns in the World Wide Web. In: Proceedings of the 4th world congress on expert systems, IEEE CS, vol 16, pp 321–327
2. Niblack W, Barber R, Equitz W, Flickner M, Glasman E, Petkovic D, Yanker P, Faloutsos C (1993) The QBIC project: querying images by content using color, texture, and shape. In: Proceedings of the SPIE storage and retrieval for image and video database, San Jose, vol 2, pp 173–187
3. Zhuang Yueting, Pan Yunhe, Wu Fei (2002) The online multimedia information analysis and retrieval. Tsinghua University press, Beijing
4. Yuan Fang, Liu Ming (2001) The content based image retrieval technology in the digital library. J Info 14:45–49
5. Wang Huifeng, Sun Zhengxing (2001) The semantic processing method in the content based image retrieval. China J Image Graph 10:7–9