The RSA-768 (270 decimal digits) was factored by Kleinjung et al. on December 12, 2009, while the RSA-704 (212 decimal digits) was factored by Bai et al. on July 2, 2012. The RSA-200 (663 bits) was factored by Bahr et...
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The RSA-768 (270 decimal digits) was factored by Kleinjung et al. on December 12, 2009, while the RSA-704 (212 decimal digits) was factored by Bai et al. on July 2, 2012. The RSA-200 (663 bits) was factored by Bahr et al. on May 9, 2005, while he RSA-210 (696 bits) was factored by Propper on September 26, 2013. In this paper the author will discuss an estimation method to approach the lower/upper bound of (n) to the RSA parameters. Our contribution may help researchers lock the (n) and the challenge RSA shortly.
A multi-objective heuristic searching approach (MoHSA) for nonlinear system modeling is presented. Based on the evolution computing and the optimal searching strategy, the computing model is able to find candidate reg...
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A multi-objective heuristic searching approach (MoHSA) for nonlinear system modeling is presented. Based on the evolution computing and the optimal searching strategy, the computing model is able to find candidate regions and further to search global solutions in the regions. HSA is one of the adaptive optimal search algorithms and the heuristic information is used to form the next optinal searching directions and steps. It has the characters of less computing time and fast searching speed. This is very helpful in nonlinear system dynamic modeling. It is generally applied in real-time identification of many dynamic control process systems. Several nonlinear functions are used to test in MoHSA. The results show the ability of MoHSA model and the features of simplicity and flexibility. Finally, a real-time control system is discussed.
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