Event type recognition method and device

A technology of event type and identification method, which is applied in the field of event type identification method and device, and can solve problems such as difficult to obtain results

Active Publication Date: 2016-11-09
NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT
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Obviously, it is difficult to obtain a satisfacto

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  • Event type recognition method and device
  • Event type recognition method and device

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[0022] In order to solve the problem caused by data imbalance in the event detection task in the prior art, the present invention provides an event type identification method and device. The following describes the present invention in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and do not limit the present invention.

[0023] According to the method embodiment of the present invention, an event type identification method is provided, figure 1 It is a flowchart of the event type identification method of the method embodiment of the present invention, such as figure 1 As shown, the event type identification method according to the method embodiment of the present invention includes the following processing:

[0024] Step 101: Perform word vector model training on all texts in the training sample set after word segmentation and mark par...

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Abstract

The invention discloses an event type recognition method and device. The method comprises the following steps that word segmentation is performed on all texts in a training set, a word vector space model is trained after word class treatment is extracted, text characteristics are extracted, and texts are shown as characteristic vectors; even type clustering is performed on the training set, and a neutral network model with type cluster regularization items is trained; test samples are also analyzed, word class treatment is extracted, and the trained word vector model is trained for obtaining character representations; by means of the neutral network model with the type cluster normalization items, event type recognition is performed. By means of the technical scheme, problems brought by annotation data imbalance are relieved by means of type sharing information in the same group.

Description

technical field [0001] The invention relates to the field of computer natural language processing, in particular to an event type identification method and device. Background technique [0002] With the advent of the era of big data, especially the promotion of mobile applications such as Weibo, WeChat, and shopping, the number of texts has exploded. How to mine valuable information from texts has become an important research topic at present. Information extraction is to identify and extract information that people are interested in from a large number of unstructured texts, laying the foundation for further topic detection and tracking, information retrieval, knowledge question answering and other applications. For example, extract topics that users care about from website browsing records, and extract major events such as explosions and terrorist attacks from news reports. TDT (Topic Detection and Tracking), a well-known American institution, has set up a special researc...

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Application Information

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IPC IPC(8): G06F17/30G06F17/27
CPCG06F16/35G06F16/36G06F40/253G06F40/284
Inventor 佟玲玲杜翠兰钮艳刘洋段东圣鲁睿程光项菲柳毅
Owner NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT
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