This paper brings forward an information retrieval method based on path learning that is used in a price information extracting system.
本文提出了一种基于路径学习的信息自动抽取方法，并采用该方法编制了一个商品价格信息自动抽取系统。
Finally, the improved path based dynamic software watermarking algorithm is validated. Verification consists of watermarking embedding and watermarking retrieval.
实现了对基于路径的防篡改动态水印算法的验证，主要对水印嵌入和水印提取两个部分进行了测试。
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