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Rough Set Approach (RSA) has been introduced to deal with multiple attributes reduction and multiple rules extraction for knowledge discovery, where assignments of objects may be inconsistent with respect to consistent principle. In this paper, a novel RSA is proposed to discover classification rules through a process of knowledge induction which selects decision rules with hierarchical design features...
Heliostat is a sun-tracking device in the solar power tower system and there are mainly two modes for heliostat to track the sun: azimuth-elevation mode and spinning-elevation mode. The heliostat tracking in the former mode has commonly been developed and applied. In this paper, the novel heliostat structure in the latter mode is presented. Furthermore, the static and dynamic performance of the heliostat...
With development of global market competition and knowledge economy, great challenges have been brought into pricing management. It is important for the enterprise to adapt the pricing strategy and the fast feedback. The purpose of this paper is to research the need of the pricing management system in special steel company and establish software to fulfil their needs. Detailed information has been...
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