Automatic extraction method of conversation text topic
A text and topic technology, which is applied in the field of automatic topic extraction of dialogue texts, can solve problems such as large spoken vocabulary, chaotic organizational structure, and field limitations, and achieve high-accuracy results
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[0025] The embodiment of the present invention focuses on the dialogue text in the form of an online chat dialogue, and summarizes its three salient features that are different from written language texts: the dialogue text contains a large number of question-answer sentence patterns, the boundaries between dialogues on different topics are blurred, and the theme Intertwined and disorganized. In view of these three characteristics, the embodiment of the present invention performs a series of data preprocessing such as word segmentation and part-of-speech tagging on the dialogue text, and then finds all question-answer pairs from the dialogue text, and combines the question sentences and corresponding answer sentences into The same sentence; then the dialogue text is subject-segmented, and adjacent dialogue sentences belonging to different topics are divided into different language chunks; finally, clustering is performed on adjacent chunk groups belonging to different themes, a...
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