Furthermore, for part of speech tagging usually causes semantic loses, semantic tagging is suggested to be the method for medical information extraction.
并且，针对词性标注容易引起语义缺失的问题，提出了以语义标注作为医案信息抽取规则的方案。
It can provide effective supports for some applications such as semantic Web and information extraction.
对于在其上的语义网、信息抽取等应用提供了有效支持。
Some feature extraction methods for web filtering exist problems, semantic information is added, the TFIDF formula is improved and then a method of feature extraction is proposed.
针对网页过滤技术中的特征选择方法存在的问题，加入语义信息，改进TFIDF公式，提出了一种比较适合网页过滤的特征选择方法。
Some feature extraction methods for web filtering exist problems, semantic information is added, the TFIDF formula is improved and then a method of feature extraction is proposed.
针对网页过滤技术中的特征选择方法存在的问题，加入语义信息，改进TFIDF公式，提出了一种比较适合网页过滤的特征选择方法。
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