Chinese author identification method based on double-layer classification model, and device for realizing Chinese author identification method

Abstract

The invention relates to a Chinese author identification method based on a double-layer classification model and a device for realizing the Chinese author identification method, belonging to the field of information security. Aiming at the problem of low identification accuracy caused by excessive authors, an author grouping layer is added in an author identification model; each author is represented into an author vector; authors are grouped by a clustering algorithm; a second layer is an author identification layer; a dependence relationship, a function word, a punctuation mark and a word class mark are extracted from the second layer to use as characteristics; and author identification is carried out in the group. According to the method or the device, the problem that the identification accuracy is lowered because of excessive authors can be effectively solved. Meanwhile, with a proposed characteristic dimensionality reduction and optimization method based on a main ingredient analysis method, the problem that the identification accuracy is affected by noise comprised by a high-dimensionality characteristic vector is solved. The Chinese author identification method can be applied to the author textual research field of a literature and also can be applied to the field of information security, such as copyright protection.

Description

technical field [0001] The invention relates to the field of Chinese natural language processing and the field of Chinese author identification, in particular to a Chinese author identification method and device based on a two-layer classification model. Background technique [0002] In recent years, the wind of plagiarism and plagiarism has intensified in academic fields such as literary creation and thesis writing. For example, there were several cases of plagiarism in papers of National Social Science Fund projects in Shanghai; post-80s writer Guo Jingming's "How Many Flowers Fall in Dreams" was suspected of plagiarism; Sang Yuzhu, executive vice chairman of the Photographers Association of Jilin Federation of Literary and Art Circles, was suspected of plagiarizing and using other people's works; Wang Hui, a professor of the Chinese Department of Tsinghua University and former editor-in-chief of "Reading" magazine, wrote his doctoral thesis "Resisting Despair" more than 2...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at discovering new effective features for Chinese; solving the problem that the noise contained in the high-dimensional feature vector causes the recognition accuracy to decline; and when the number of authors is relatively large (greater than 20), the recognition accuracy is low. question

Images