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1. CN109871532 - Text topic extraction method and device and storage medium

Office
China
Application Number 201910008265.9
Application Date 04.01.2019
Publication Number 109871532
Publication Date 11.06.2019
Publication Kind A
IPC
G06F 17/27
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
20Handling natural language data
27Automatic analysis, e.g. parsing, orthograph correction
G06F 17/16
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
10Complex mathematical operations
16Matrix or vector computation
G06N 3/04
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
NCOMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
3Computer systems based on biological models
02using neural network models
04Architecture, e.g. interconnection topology
CPC
G06F 16/34
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
30of unstructured textual data
34Browsing; Visualisation therefor
G06F 17/16
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
10Complex mathematical operations
16Matrix or vector computation ; , e.g. matrix-matrix or matrix-vector multiplication, matrix factorization
G06N 3/04
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
NCOMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
3Computer systems based on biological models
02using neural network models
04Architectures, e.g. interconnection topology
Applicants PING AN TECHNOLOGY (SHENZHEN) CO., LTD.
平安科技(深圳)有限公司
Inventors JIN GE
金戈
XU LIANG
徐亮
XIAO JING
肖京
Agents 北京鸿元知识产权代理有限公司 11327
北京鸿元知识产权代理有限公司 11327
Title
(EN) Text topic extraction method and device and storage medium
(ZH) 文本主题提取方法、装置及存储介质
Abstract
(EN)
The invention belongs to the technical field of artificial intelligence, and discloses a text topic extraction method, which comprises the following steps of: constructing a text topic extraction model; Training a text topic extraction model; obtaining a text word vector corresponding to the text sample; inputting the text word vectors into a trained text topic extraction model; outputting text topics, wherein the text topic extraction model comprises a convolutional neural network and an attention mechanism; the attention mechanism comprises a position attention mechanism and a channel attention mechanism; and the position attention mechanism and the channel attention mechanism are established in parallel and are both connected with an activation layer of the convolutional neural network,a position attention weight and a channel attention weight are respectively applied, and an output result of the position attention mechanism and an output result of the channel attention mechanism are both input into a full connection layer of the convolutional neural network. The invention further discloses an electronic device and a storage medium. According to the method, the operation efficiency of the text topic extraction model is improved, and the text topic extraction precision is improved.

(ZH)
本发明属于人工智能技术领域,公开了一种文本主题提取方法,包括:构建文本主题提取模型;训练文本主题提取模型;获取文本样本对应的文本词向量;将文本词向量输入经过训练的文本主题提取模型;输出文本主题,其中,文本主题提取模型包括卷积神经网络和注意力机制,注意力机制包括位置注意力机制和通道注意力机制,位置注意力机制和通道注意力机制并行建立,均与卷积神经网络的激活层连接,分别施加位置注意力权重和通道注意力权重,将位置注意力机制的输出结果和通道注意力机制的输出结果均输入卷积神经网路的全连接层。本发明还公开了一种电子装置和存储介质。本发明提高了文本主题提取模型运算效率,提高了文本主题提取的精度。

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