Methods and systems for intelligent question recognition and correction

An intelligent identification and question technology, applied in the field of artificial intelligence, can solve the problem that the position and specific content of the answer cannot be automatically identified, missed, and low efficiency, so as to improve the efficiency of homework correction and expand the scope of application.

Active Publication Date: 2018-12-04
HANGZHOU DANA TECH INC
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing automatic marking system, most of the marking is completed by computer, which is mainly for marking objective questions (such as multiple choice questions). The processing method is to read the data on the chart card and compare it with the standard answer Yes, although this method effectively improves the review speed, it requires students to use 2B pencils to answer objective questions when answering, which is not only inconvenient, but also prone to mistakes, omissions, etc.
In addition, the printed test paper

Method used

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  • Methods and systems for intelligent question recognition and correction
  • Methods and systems for intelligent question recognition and correction

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Embodiment Construction

[0081] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0082] figure 1 Shows the flow of an embodiment of the subject intelligent identification method of the present invention, please refer to figure 1 , the following is a detailed description of each step of the method for intelligent topic identification in this embodiment.

[0083] Step S1: Based on the image of the test paper and the pre-trained first model, identify the area of ​​each question on the test paper. The first model is a model based on a neural network.

[0084] The first model is obtained through the image 3 The steps shown are trained. See also image 3 , the process of how to train the first model is detailed below.

[...

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Abstract

The invention discloses methods and systems for intelligent question recognition and correction. Through artificial intelligence, stems and answer contents of various types of questions in a test paper can be automatically recognized and the answer contents are corrected automatically. In the technical scheme, a neural network model (such as a CNN model) is trained to be a model for question typerecognition based on a large number of test paper samples in advance; the model which is formed through training is used to detect the position of each question in the paper, the type corresponding tothe question and different components (the stem, the answer and a picture) in the question; the printed character information of the stem and the written character information of an answer part are then recognized based on the recognition model; and finally, based on recognized character information, automatic correction is carried out.

Description

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Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/34G06N3/04G06N3/08G06Q50/20
CPCG06N3/08G06Q50/20G06V30/40G06V30/153G06N3/045G09B7/02
Inventor 何涛罗欢陈明权
Owner HANGZHOU DANA TECH INC
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