[2] Gupta L, Ma S. Gesture-based interaction and communication: automated classification of hand gesture contours[J]. IEEE Trans on Systems, Man and Cybernetics, Part C: Applications and Reviews, 2001, 31(1):114-120.

[3] Atid S, Wu H, Alistair S. Hand gesture recognition for human computer interaction[N]. ERCIM NEWS, European Research Consortium for Informatics and Mathematics, 2001, (46).

[4] Burges C J C. A tutorial on support vector machines for pattern recognition[J]. Knowledge Discovery and Data Mining, 1998, 2(2):121-167.

[5] Platt J, Cristianini N, Shawe T J. Large margin DAGs for multiclass classification[J]. Advances in Neural Information Processing Systems, 2000, 12:547-553.

[6] Suykens J A K, Vandewalle J. Least squares support vector machine classifiers[J]. Neural Processing Letters, 1999, 9(3): 293-300.

[7] Liu Jiang-hua, Cheng Jun-shi, Chen Jia-pin. Incremental and decremental LS_SVM for function estimation[A]. 8th International Conference on Neural Information Processing(ICONIP2001)[C]. 2001, 3. 1372-1375.

[8] Golub G H, Van L C F. Matrix Computations[M]. Baltimore MD: Johs Hopkins University Press, 1989.

[10] Hsu C W, Lin C J. A comparison on methods for multi-class support vector machines[R]. Taipei: National Taiwan University, 2001.