Computation of Five Types of Grey Relational Degree Models

Using MATLAB programming language, we have successfully implemented five different types of grey relational degree models: Deng's relational degree, absolute relational degree, slope relational degree, improved absolute relational degree, and T relational degree. The implementation includes key algorithms for each model, such as data normalization methods, difference sequence calculations, and coefficient determination functions. We have also developed two test data sequence generation functions that create synthetic datasets with controlled characteristics to evaluate model effectiveness and accuracy. Our research involved in-depth analysis of each model's computational methodology and underlying principles, with extensive experimentation demonstrating their practical validity and applicability in real-world scenarios. The MATLAB code incorporates efficient vectorization techniques and includes parameter validation functions to ensure robust operation. Future research will focus on optimizing and enhancing these models through algorithmic improvements and additional validation metrics to better address diverse practical problem requirements.