Combination Prediction Method Based on GM (Grey Model) and LSTM (Long Short-Term Memory Network)
1. Basic Principles and Complementarity of GM and LSTM 1. Core Features of the GM Model Basic Principle: The original unordered sequence is transformed into a smooth sequence with exponential regularity through Accumulated Generating Operation (AGO), establishing a first-order differential equation (e.g., GM(1,1)) for prediction. Its mathematical form is: where X is the accumulated sequence, … Read more