Automatic labeling method and device for mathematic question knowledge points

A technology of knowledge points and mathematics, applied in the field of teaching, can solve problems such as the inability to automatically mark knowledge points in test questions, achieve the effect of eliminating manual marking work, realizing intelligence, and improving work efficiency and accuracy

Inactive Publication Date: 2018-06-19
谢德刚
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method and device for automatically labeling knowledge points of math test questions based on dee...

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  • Automatic labeling method and device for mathematic question knowledge points
  • Automatic labeling method and device for mathematic question knowledge points
  • Automatic labeling method and device for mathematic question knowledge points

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Embodiment 1

[0026] Example as figure 1 As shown, an automatic labeling method for mathematical knowledge points based on deep learning includes the following steps:

[0027] S1: Prepare a training sample set with knowledge points marked, and preprocess the mathematical text;

[0028] S2: Prepare the corpus in the field of mathematics, train the word vectors in the field of mathematics according to the character level and word level respectively, and save the result as a dictionary form of {word / character: word vector}, which will be used for future training of the neural network model; S3: Build two layers of TextCNN Neural network model, input the labeled training sample set, and train the model.

[0029] The specific work includes model framework design. The present invention uses a two-layer TextCNN network with a structure of word embedding-convolution-pooling-convolution-pooling-dropout. Among them, multiple convolution kernels with different fields of view are designed to collect ...

Embodiment 2

[0038] An automatic labeling method for mathematical knowledge points based on deep learning, including:

[0039] S1: Mathematics text preprocessing, respectively standardize, word segmentation and stop word processing;

[0040] S2: Prepare the corpus in the field of mathematics, and train word vectors in the field of mathematics according to the character level and word level respectively;

[0041] S3: Build a two-layer TextCNN neural network model, input a labeled training sample set, and train the model;

[0042] The step S1 specifically includes the following steps:

[0043] S11: Standardize the mathematical text, mainly for text normalization and synonym replacement. For example: "image" is replaced with "image", "°|circ|degree" is replaced with "degree", " / / |parallel" is replaced with "parallel", etc. To remove stop words is to remove high-frequency and meaningless words, such as "的", ",", "!", "\" and so on.

[0044] S12: Use tf-idf to filter keywords for each type ...

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Abstract

Disclosed is an automatic labeling method for mathematic question knowledge points. The labeling method is based on a depth learning model. The labeling method comprises the steps of S1, preprocessinga mathematic question text, wherein standardization, word segmentation and stop word removal processing are performed separately; S2, preparing a mathematic field corpus, and training a mathematic field word vector according to the character level and the word level; S3, setting up a two-layer Text CNN neural network model, inputting a mathematic question training sampling set with labels, and training the neural network model. The knowledge points of mathematic question in a novel question bank can be automatically labeled by means of the model.

Description

technical field [0001] The invention belongs to the field of teaching technology, in particular to a method and device for automatically marking knowledge points of mathematics test questions. Background technique [0002] With the continuous development of artificial intelligence technology, deep learning is increasingly being used in speech recognition, image recognition, natural language processing and other aspects. The concept of deep learning originated from the research of artificial neural networks, and the multi-layer perceptron with multiple hidden layers is a deep learning structure. The deep learning framework can learn the underlying data feature representation, so as to find the intrinsic relationship between the feature data and the target data. In the field of Internet education, the establishment and maintenance of online question bank is the "cornerstone". In the process of entering the new question catalog into the question bank, it relies on manual entr...

Claims

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Application Information

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IPC IPC(8): G06F17/27G06F17/30
CPCG06F16/35G06F40/242G06F40/289
Inventor 谢德刚姚志峰
Owner 谢德刚
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