Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for opinion mining based on reading comprehension

A reading comprehension and opinion mining technology, which is applied in the fields of digital data processing, natural language data processing, special data processing applications, etc., to achieve the effect of accurate opinion mining results.

Active Publication Date: 2022-07-19
NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the classification of emotion and stance in previous models is an independent process, but there is often an implicit synergistic relationship between emotion and stance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for opinion mining based on reading comprehension
  • Method and device for opinion mining based on reading comprehension
  • Method and device for opinion mining based on reading comprehension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, so that those skilled in the art can implement according to the description.

[0042] It should be understood that terms such as "having", "comprising" and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0043] Terminology Explanation:

[0044] Mask: word occlusion. Replace the specified word in the text with the generic masking label [MASK] defined in BERT.

[0045]BERT: A general-purpose NLP deep learning model proposed by goole that can be used for various NLP tasks after fine-tuning. See Jacob Devlin, Ming-Wei Chang, Kenton Lee, Kristina Toutanova: BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding. NAACL-HLT(1) 2019:4171-4186.

[0046] Embedding: Natural raw data is a low-dimensional manifold embedded in the high-dimensional spac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an opinion mining method based on reading comprehension. The emotional opinion knowledge base and the event opinion training text set are used to train the pre-training language model to obtain the emotional pre-training language model, and the emotional pre-training language model is embedded with the emotion and opinion information representing the input text; from the event text to be extracted extracting event opinion texts from ; inputting the event opinion texts into the emotion pre-training language model, and encoding the output content, extracting and classifying sentence features, and obtaining the sentiment and position of the viewpoints in the event texts to be extracted; and , an opinion mining device based on reading comprehension. The present invention has the advantage of making the opinion mining result more accurate.

Description

technical field [0001] The present invention relates to the field of natural language processing. More specifically, the present invention relates to a method and device for opinion mining based on reading comprehension. Background technique [0002] Opinion mining consists of two steps: Opinion Extraction (Identify) and Polarity Classification (Classify). The main method of existing opinion extraction research is the rule-based model. This kind of method designs special trigger words according to the text characteristics and actual needs of the event, and combines named entity recognition technology to identify key information such as people's names and organizations, and design opinions. Extraction rules extract expert opinion in events. However, this type of model needs to design extraction rules according to actual needs. It is an unsupervised model. It lacks the understanding of the semantic information of the overall event document, and cannot understand the directio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/35G06F40/289G06F40/30G06K9/62G06F40/216G06N5/02
CPCG06F16/35G06F40/289G06F40/30G06F40/216G06N5/022G06F18/22
Inventor 陈志鹏刘春阳张旭王鹏董善为李倩虞世城李建欣
Owner NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT