Abstract: Keywords serving a dense summary of documents, are widely used in search engine and library to do information retrieval, content classification, speech recognition and automated text summarization. However, massive documents are lack of keywords, and the rapid generation of the large amount of content every day makes the human annotation really time-consuming. Lots of researches show that network-based approaches have remarkable performance for extracting text keywords. Traditionally, words are connected based upon their occurrence in documents...
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Topics: 
Information retrieval
Natural language processing
Artificial intelligence