8OZBYOGLU G, EVREN O M. A new approach for the prediction of ash fusion temperatures : A case study using Turkish lignites[J] Fuel,2006,85(4) : 545 - 552.
9YIN Chun-gen, LUO Zhong-yang, NI Ming-jiang, et al. Predicting coal ash fusion temperature with a back-prop- agation neural network model[J]. Fuel, 1998,77 (15) : 1777 - 1782.
10VAPNIK V N. The nature of statiscal learning theory [M]. New York : Springer-Verlag, 1999 : 138 - 167.