Journal of Applied Sciences ›› 2021, Vol. 39 ›› Issue (3): 443-442.doi: 10.3969/j.issn.0255-8297.2021.03.010

• Signal and Information Processing • Previous Articles     Next Articles

News Summarization Extracting Method Based on Improved MMR Algorithm

CHENG Kun, LI Chuanyi, JIA Xinxin, GE Jidong, LUO Bin   

  1. Software Institute, Nanjing University, Nanjing 210093, Jiangsu, China
  • Received:2020-10-26 Online:2021-05-30 Published:2021-06-08

Abstract: This paper proposes a news extraction method based on maximal marginal relevance (MMR) and a news extraction method based on support vector machine and maximal marginal relevance (SVM-MMR). The first method improves the traditional MMR news extraction method, and the second one uses the improved MMR news extraction method to make a second choice of the SVM classification results. Compared with the traditional MMR news extraction method, the average precision of MMR-based and SVMMMR-based news extraction methods are improved by 0.148 and 0.204, respectively. And the extraction efficiency of the MMR-based method is about 3 times of that of the SVMMMR method. The augmented MMR algorithm is more suitable for application scenarios that require high summarization efficiency, especially for long text summarization, while the SVM-MMR method is more suitable for generating a more comprehensive summary of the text content.

Key words: news extraction, extractive summarization, redundant processing, support vector machine (SVM), maximal marginal relevance (MMR)

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