模式识别是一门年青的学科。Gelfand、Press和Briggs等人都曾将此方法用于危险区的划分及研究地震与钱德勒颤动等的关系。有关模式识别在地震学中应用的概况,请参看文献[3]。 在“大震前地震活动的图象识别”一文中,我们将模式识别方法用于识别强震发生的时间,我们曾得到:“大震发生前的一定时间内,中等地震活动增至一定水平、相差半级 Pattern recognition is a young discipline. Gelfand, Press and Briggs et al. Have used this method for the demarcation of hazardous areas and the relationship between earthquakes and Chandler fibrillation. For an overview of the application of pattern recognition in seismology, see [3]. In the article “Image Recognition of Earthquakes Before Great Earthquakes,” we used a pattern recognition method to identify the occurrence of strong earthquakes. We have obtained that "moderate earthquakes have increased to a certain level , A difference of half