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Many existing pre-computed radiance transfer (PRT) approaches for all-frequency lighting store the information of a 3D object in the pre-vertex manner. To preserve the fidelity of high frequency effects, the 3D object must be tessellated densely. Otherwise, rendering artifacts due to interpolation may appear. This paper presents an all-frequency lighting algorithm for direct illumination based on...
We adopt the classical Fama and French (1992) [E.F. Fama, K.R. French, The Cross-Section of Expected Stock Returns, The Journal of Finance, 47 (1992) 427 -- 465.] approach to investigate the effect of Beta, size, leverage, book value to market value (B/P), and earnings to price (E/P) ratio on the average monthly returns in the China Stock Market (CSM) from July 1998 to June 2011. The phenomenon of...
In China stock market, more than 95% are non-professional investors. Due to the lack of professional skill and the complexity of financial indicators and the varying investment environment, non-professional investors are in great need of a data mining-based intelligent stock trading decision-support system. Considering the existence of concept drift phenomenon, this study proposes an adaptive learning...
The rapid growth of C-C e-commerce in China attracts more and more people entering the market. In order to achieve a desired credit level and create enough transactions in a short time, many sellers choose to manipulate their reputation. This paper analyses the three methods of credit hypes exist in China: low value transaction, colluding transaction, manipulating in agreement with professional manipulator...
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