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- W2251586989 abstract "In this paper, we propose a method to raise the accuracy of text classification based on latent topics, reconsidering the techniques necessary for good classification – for example, to decide important sentences in a document, the sentences with important words are usually regarded as important sentences. In this case, tf.idf is often used to decide important words. On the other hand, we apply the PageRank algorithm to rank important words in each document. Furthermore, before clustering documents, we refine the target documents by representing them as a collection of important sentences in each document. We then classify the documents based on latent information in the documents. As a clustering method, we employ the k-means algorithm and investigate how our proposed method works for good clustering. We conduct experiments with Reuters-21578 corpus under various conditions of important sentence extraction, using latent and surface information for clustering, and have confirmed that our proposed method provides better result among various conditions for clustering." @default.
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- W2251586989 date "2013-08-01" @default.
- W2251586989 modified "2023-09-25" @default.
- W2251586989 title "Text Classification based on the Latent Topics of Important Sentences extracted by the PageRank Algorithm" @default.
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