这个矩阵的行表示调用函数的地址，列表示被调用的地址。

The rows of the matrix represent the call-from address, and the columns represent the call-to address.

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简单来说，可以将它看作是一个矩阵，其中一列包含内存地址，另一列包含源triplet(文件、代码行和列)。

In the simplest form, this can be looked at as a matrix with one column containing the memory addresses and another column containing the source triplet (file, line, and column).

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在分析基于特征矩阵的主存故障检测方法原理的基础上，介绍了检测地址位及数据位故障时特征矩阵存在的条件及其确定方法。

Analyzing principle of fault detection in main memory based on characteristic matrix, the paper introduces the condition and methods of detecting address bit and data bit.

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