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Emergency topic detection system and method

A topic detection and topic technology, applied in the field of data processing, can solve problems such as huge workload and inability to process text data in real time

Inactive Publication Date: 2020-03-27
成都迪普曼林信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The detection of sudden topics can be done manually, but on the one hand, the workload is too large, and on the other hand, new text data cannot be processed in real time

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Embodiment Construction

[0017] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0018] A sudden topic detection method, comprising:

[0019] Text data input: read text data files that need to be detected for burst topics.

[0020] Text data preprocessing, including word segmentation and removal of stop words; if it is an English document, there is no word segmentation step; word2vector vector method is used for word embedding. Directly calculate the vector of the document after removing the stop words. The specific method is that the document vector is superimposed by the sentence vector and then averaged, and the sentence vector is superimposed by the word vector and then averaged.

[0021] Burst topic detection calculation and analysis, using the LAD model algorithm for topic detection; using the Kleinber...

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Abstract

The invention discloses an emergency topic detection system and method. The emergency topic detection method comprises the steps of text data input, text data preprocessing, topic detection, topic sudden evaluation and emergency topic detection result output. According to the emergency topic detection method, the emergency topics can be detected from news reports or social media text information input in batches, and the burstiness degree of the emergency topics is evaluated, and when an event occurs, suddenly bursts and declines can be observed, and Chinese and English documents are supported.

Description

technical field [0001] The invention belongs to the field of data processing, and in particular relates to a sudden topic detection system and method. Background technique [0002] Today's computer and network technologies are developing very rapidly. There are a lot of text data on the Internet, such as blog posts on Weibo, articles on various news websites, etc. There may be some unexpected topics in these text data. Burst topics spread very quickly on the Internet and can have a huge influence, so it is very important to detect burst topics. The detection of sudden topics can be done manually, but on the one hand, the workload is too large, and on the other hand, new text data cannot be processed in real time. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies of the prior art, to propose a sudden topic detection system and method, which can detect sudden topics from batch-input news reports or social media text infor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/9536G06F16/33
CPCG06F16/3344G06F16/9536
Inventor 陈泽勇张治同姚松张莉
Owner 成都迪普曼林信息技术有限公司