Method and device for generating collection of incorrectly-answered questions

A device for generating a collection of incorrectly-answered questions, characterized by comprising:

• a memory, storing an acquiring module, a first recognition module, a second recognition module, a second recognition module and a generating module;
• and
• a processor, coupled to the memory and configured to execute the acquiring module, the first recognition module, the second recognition module, the second recognition module and the generating module,
• wherein the acquiring module is used to acquire an image of a marked test paper;
• the first recognition module is used to recognize regions of respective questions in the marked test paper according to a pre-trained first region recognition model;
• the second recognition module is used to recognize a question whose marking result is incorrect in the marked test paper as an incorrectly-answered question according to a pre-trained incorrectly-answered question recognition model;
• and
• the generating module is used to store the region of the incorrectly-answered question in an incorrectly-answered question database to generate the collection of incorrectly-answered questions,
• wherein the second recognition module is used to:
• recognize marking symbols in the regions of respective questions according to the pre-trained incorrectly-answered question recognition model, and determine a question whose marking symbol is a preset symbol as the question whose marking result is incorrect,
• recognizing the marking symbols in the regions of respective questions comprises:
• performing binarization processing on images corresponding to the regions of respective questions, and recognizing the marking symbols in the regions of respective questions according to a pixel value range,
• the device further comprises:
• a second association module configured to store at least one of a test paper identifier (ID), a reason for being incorrect, and an assessment knowledge point corresponding to the incorrectly-answered question in the incorrectly-answered question database and associate at least one of the test paper ID, the reason for being incorrect, and the assessment knowledge point with the incorrectly-answered question,
• the reason for being incorrect is obtained through following process:
• determining the reason for being incorrect through recognizing a character in an answer region of the incorrectly-answered question and comparing a solving process listed in the answer region with a standard answer,
• the assessment knowledge point is obtained through following process:
• pre-classifying overall knowledge points according to a syllabus, and determining the corresponding assessment knowledge point through recognizing stem character content of the incorrectly-answered question, or
• searching a question corresponding to the incorrectly-answered question in a question bank and determining an assessment knowledge point category pre-labelled on the corresponding question is as an assessment knowledge point category of the incorrectly-answered question.