用决策树（ID3算法）进行关键字提取 根据词频特征对文章中的关键字时行识别-using decision tree (ID3 algorithm) for keyword extraction Frequency characteristics according to the article, keyword identification at the OK

读入一篇文章包括符号和英文，搜索词出现的位置并把关键字在同一地方显示。-Read an article, including symbols and English, the search term appears in the same location and the keywords it suggests.

一种自然语言处理的算法 用于情感分析 将一篇文章以关键字的角度来区别正面负面 已经添加了中文词典，可以对中文使用（请对语料先分词）-A natural language processing algorithm for sentiment analysis will be an article with keywords to distinguish between the positive and negative perspective has been added Chinese dict