将抽取的字符串保存为特殊的XML文档。

Store extracted strings in a special XML document.

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该字符串操作还从元素的“ start ”和“ end ”属性抽取活动开始和结束时间。

The string operations also extract event start and end times from the "start" and "end" attributes of the element.

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首先对图纸的光栅图像进行字符分离，利用均匀网格方法抽取字符特征，用BP神经网络进行训练和识别。

After characters are divided from the raster image, the features of characters are extracted by symmetrical grids and then are inputted into BP neural network for further analysis.

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