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Home Backend Development PHP Tutorial How to implement test question marking and intelligent search functions in online answering

How to implement test question marking and intelligent search functions in online answering

Sep 26, 2023 am 09:57 AM
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How to implement test question marking and intelligent search functions in online answering

How to implement test question marking and intelligent search functions in online answering questions

In the field of modern education, with the rise of online learning, more and more students and Educational institutions choose to use online answering systems. However, how to quickly find specific questions and how to label and classify test questions is a common problem for students and teachers. In order to solve this problem, we can use test question marking and intelligent search functions to improve user experience.

Test question labeling refers to the process of classifying, categorizing, and labeling test questions. By labeling test questions with specific labels, retrieval and search can be made more convenient. The intelligent search function uses algorithms and technologies to perform semantic analysis and correlation calculations on test questions to provide more accurate search results.

Below we will introduce in detail how to implement question marking and intelligent search functions in online answering.

1. Implementation of test question marking function

The test question marking function is mainly divided into two methods: manual marking and automatic marking.

  1. Manual marking

Manual marking means that when teachers or administrators upload test questions, they manually select relevant tags to classify the test questions. This method requires teachers to have certain professional knowledge and experience and be able to correctly judge the category to which the test questions belong. For example, math questions can be labeled with "mathematics", "algebra", "geometry", etc., and Chinese questions can be labeled with "Chinese", "composition", "reading comprehension", etc.

The advantage of manual marking is that it can ensure the accuracy and comprehensiveness of labels, but the disadvantage is that it requires a lot of time and energy from teachers.

  1. Automatic marking

Automatic marking refers to automatically classifying and marking test questions through training models with the help of related technologies such as machine learning and natural language processing. This method can greatly reduce the burden on teachers and improve the efficiency of operations.

The key to automatic marking is to establish a training model for test question classification. First, a large amount of labeled test question data needs to be collected as a training set. Then, based on text information such as the question stem, options, and answers, a machine learning algorithm is used for training to build a model that can automatically determine the category of the test question.

In fact, we can use deep learning models such as convolutional neural networks (CNN) and recurrent neural networks (RNN) to iteratively train on the training set to obtain a model with higher accuracy. Then, this model is applied to the online question answering system, and the test question data is fed into the model for classification and automatic marking.

2. Implementation of the intelligent search function

The intelligent search function uses algorithms and technologies to perform semantic analysis and correlation calculations on test questions to provide more accurate search results.

  1. Semantic analysis

Semantic analysis refers to comparing and matching search terms with test question data, and judging whether they are relevant to the test question based on the meaning and relevance of the words. You can use the word vector model in natural language processing technology to convert text data into vector representations, and calculate the similarity between vectors to determine the semantic relevance of search terms and test questions.

  1. Relevance calculation

Relevance calculation refers to sorting and recommending search results based on the attributes and associated information of the test questions. Statistical methods based on TF-IDF (Term Frequency-Inverse Document Frequency) can be used to calculate the importance of search terms in test questions and the correlation between test questions and search terms. It can also be combined with machine learning sorting algorithms to make personalized recommendations based on user feedback and historical behavior.

To sum up, implementing test question marking and intelligent search functions in online answering can improve user experience and efficiency. Through manual marking and automatic marking, classification labels are added to the test questions to facilitate subsequent retrieval and classification. At the same time, more accurate and personalized search results can be provided through semantic analysis and correlation calculation methods. However, the specific implementation of these functions needs to be combined with specific technology and platform requirements, and requires further research and development and optimization.

*The code examples in this article are relatively complex and require a lot of technical support. There is currently no way to provide specific code examples. We hope that the above introduction can give readers a general understanding and inspire them to further explore related technologies and application methods.

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