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AI Grading Development Process and Considerations

Artificial Intelligence
August 16, 20245 mins

Do you know AI grading uses ML and computer algorithms to evaluate student scores? But, you might not know that AI grading systems immediately provide feedback and personalized recommendations to students and teachers. Read this article to know how the backend of an AI Grading system works to analyze data from multiple sources and deliver accurate output. 

The use of artificial intelligence has brought about dramatic changes in many fields across various sectors. Education is one of the sectors in which AI has shown the most interesting changes. AI in education has, without doubt, been one of the most exclusive AI EdTech applications. The introduction of this technological advancement ensures quicker evaluation, faster feedback for students, and the same criteria grading. The AI in grading process included a detailed technical process which can be further subdivided into several steps. The process is visualized in the form of a flowchart and we will explain it here. Implementation grading with AI development includes these 3 core stages:

  1. Content Preparation for Test/Exam Paper
  2. Assignment Creation
  3. Assignment Delivery and Post-assessment

Being one of the Top AI development companies in the USA, we will explain to you each AI in grading development stages in detail.

The Development Process of AI Grading System

AI Base Grading System Development Process works

Content Preparation for Exam Paper

The AI grading process starts with a detailed content preparation process for the exam which involves content chunking and generation of embedding. This helps to create the database for an efficient grading process.

1. Content Chunking

  • Initially, the course content needs to be divided into tiny parts that are much simpler to work with. These are often called chunks. This can be achieved by the usage of various methods like sliding windows or sentence-based chunking.
  • The correct platform will work efficiently with different kinds of content like text, images, and multimedia.

2. Embedding Generation

  • Next, each piece of text is made into an embedding. An embedding is a version of the text that AI can understand by using numbers.
  • One of the best ways to create embeddings is by employing the services of a pre-trained language model e.g. text-embedding-3-small, instructor-large. Another possibility would be to build a special model.
  • The embeddings that are produced are then preserved in the database. This type of database can be a vector database, such as MongoDB , PineCone, and Milvus.

Exam Assignment Creation

The process of exam paper creation involves a step-wise approach in terms of retrieval of content and generation of questions and answers based on that. Let us find out the detailed process behind question paper creation:

3. Content Retrieval

  • When a user (i.e. instructor) asks the system a question, a search algorithm pulls out the required content chunks from the integrated database.
  • It draws this information based on similarity metrics, such as cosine similarity. This metric provides the measurement of how close the instructor query is in comparison with the stored content embeddings. 

4. Generation of Assessment Question

  • The given content chunks will be helpful to ask questions. The whole procedure is about the application of a Large Language Model (LLM) API. As shown in the flowchart, in this case, OpenAI's GPT-4o will be used to come up with questions.
  • LLM receives guidance from the prompt to its query thinking according to the material. The platform can include various types of questions, such as multiple-choice, true/false type, and open-ended questions.

5. Answer Generation

  • The LLM is extremely flexible in responding to the queries of its instructors and it follows the best tactics to produce all the appropriate solutions. In the example of open questions, the model uses a unique way where it adopts internal logic to display multiple solutions thereby ensuring quality and good inputs for evaluation.

Assignment Delivery and Post-Assessment 

One of the most important aspects of the AI-based grading process is the efficient delivery of the assignment and evaluation of the answers. This will also involve getting proper feedback based on the evaluation.

6. Assignment Interface

  • To better user interaction, a perfectly user-friendly User Interface(UI) with questions to be presented to the user (i.e. student) and the users’ answers to be collected is designed.
  • This interface must be programmed appropriately to handle different assessment methods in terms of asking different types of questions and giving various types of answers.

7. Evaluation of Answer

  • For closed-ended questions, it will be easier for the system to find out the correct answer from the database. It should be capable of comparing the student’s answers with the right answer.
  • The LLM which checks the student’s answer by comparing it with the model answers through semantic similarity metrics will approach open-ended questions differently. This means that different but right having the same meaning answers will still be graded.
  • A grading system is in place to provide grades based on the quality of the answers.

8. Feedback Generation

Post the assessment the system will display clear, and detailed feedback to the student that helps them in identifying areas for improvement and deepen their understanding of the subject matter.

Additional Considerations of AI-Based Grading

  1. Performance Optimization
    The system should produce faster grading with maximum accuracy. This is necessary when handling and processing great amounts of data that will be used by a lot of people.
  2. Error Handling
    The development of a proper error-handling system is an unimportant part of the development process. Accordingly, the system must be able to identify the wrong inputs, API errors, and similar issues.
  3. Scalability
    The system should be built to cope with more load content and a greater number of users without the trouble of performance loss.
  4. Security
    The security of the system is very important, as it can prove the system's reliability and boost user confidence. This can be achieved by encrypting user data and carefully protecting API keys.
  5. Ethical Considerations
    It is essential to ensure that the AI model is completely ethical in its use of data and free from all kinds of biases.

Conclusion

he implementation of AI grading in e-learning goes through a set of sequential, well-defined steps, starting from the submission of the necessary course content up to the delivery of the grades to the students. This process involves emerging technologies like artificial intelligence and embedding techniques that make grading fast, easy, and uniform. AI grading systems have the capability of improving the current educational evaluation scenarios in e-learning through their constant upgrades and enhancements, which in turn will ensure that learning experiences are made more unique and efficient.

Looking for AI experts to develop a robust grading system? Codiste, an AI development company in USA, have AI experts with expertise in AI technologies like pattern recognition, NLP, adaptive learning, and more. Knowledge of these technologies help us to develop efficient automated grading systems for educators and institutions. Contact Us!

Nishant Bijani
Nishant Bijani
CTO & Co-Founder | Codiste
Nishant is a dynamic individual, passionate about engineering and a keen observer of the latest technology trends. With an innovative mindset and a commitment to staying up-to-date with advancements, he tackles complex challenges and shares valuable insights, making a positive impact in the ever-evolving world of advanced technology.
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