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《Journal of Xiamen University(Natural Science)》 2009-03
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Knowledge Support Algorithm of Earthquake Forecast Based on Two Direction Singular Rough Sets

CHEN Xiu-qiong1,QIU Jin-ming1,SHI Kai-quan2(1.Department of Mathematics and Computer,Sanming College,Sanming 365004,China;2.School of Mathematics and System Science,Shangdong University,Jinan 250100,China)  
By using the characteristic of elements transferred in S-rough sets theory and the differences between regions as well as pre-earthquakes of earthquake precursory anomalies,a knowledge support algorithm of earthquake precursory anomalies based on two direction S-rough sets was proposed.Firstly,the observed set X of precursory anomaly observation items in the boundary of some active tectonic-block was given.The R-equivalence class on it was classed.Next,the lower approximation and the upper approximation of set X was solved,where X denotes the set of precursory anomaly observation items which often emerge in this block.Finally,two direction S-set of X was solved.The lower approximation and upper approximation of two direction S-set of X was established and the main precursory anomalies from intricate earthquake precursor in given area was gained.The algorithm is helpful for seismologists to diminish the research scale of precursory anomalies.However,the application of the algorithm must collect lots of complete data of Earthquake′s precursory anomaly in the boundary of different active tectonic-blocks.
【Fund】: 福建省自然科学基金(S0650031);; 福建省教育厅项目(JA05326);; 三明学院重点学科项目(ZDXK0604)资助
【CateGory Index】: P315.7
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