Text classification is very effective in processing massive text data, which has very high utility value. It attracted much attention in this field, and became an important research area during the past few years. 文本分类是处理大量文本数据的一种非常有效的技术手段,具有很高的实用价值,引起了人们的普遍关注,成为了一项技术研究热点。