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paperclassification-'s Introduction

paperclassification-

Unsupervised classification by the topics of papers

20180412 工程创建:

下载的论文已经有300多篇了,大部分都没有分类,现在已经忘了都是关于什么内容的了,找起来也很麻烦。于是打算根据论文题目做一个粗略的分类。

可能会涉及到的处理:

翻译(多数论文是英文名字,个别中文名字的翻译成英文)

纠错(论文名字中有单词拼写错误)

分类(具体用哪种分类方法还没想出来)

20180508 算法改进:

   最初版本使用bag-of-words方法作为特征,又改为使用tf-idf特征,效果有提高,但是会出现很多文章聚集在其中一类的情况,需要再进一步细分。

   在得到tf-idf之后,再做SVD分解(Latent Semantic Indexing,LSI,参考论文《Latent Semantic Indexing: An overview》),效果又有提高。

20180514 算法尝试:

 把文本里的words的vectors取均值作为文本的vector,再做聚类,分类的效果不好,可能是因为文本的vector距离近的,不代表文本的topic相近,所以通常是在监督学习的情况下使用这种方法。

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