信息增益在地震趋势估计中的应用
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摘要
从熵中信息增益的定义出发,将地震中的能量和频度作为一个整体考虑,研究了全球1900—1992年M≥6.0地震的信息增益。结果表明,强震前有信息增益减小的特点。通过对地震趋势的研究发现,全球范围内近期发生M≥8.5地震的可能性较小。信息增益方法的引入,为利用中小地震进行地震跟踪预报提供了一个新途径。
Considering two seismic parameters, energy and frequency of an earthquake as a whole from the definition of Information gain in entropy, we study information gain of earthquakes with M≥6. 0 from the world earthquake catalogue during 1900-1992.The result shows that the information gain decreases before strong earthquake. Our study of recent seismic tendency of large earthquakes shows that the probability of earthquake with M≥8.5 is low during the near future in the world. The information gain technique provides a new approach to tracing and predicting earthquakes from data of moderate and small earthquakes.
引文
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