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Dynamic Trading Strategies for Volatile Assets: A Hybrid GM-LSTM Model with Finite State Machine Optimization
Proceedings of 2025 2nd International Conference on Machine Learning and Intelligent Computing, PMLR 278:632-643, 2025.
Abstract
This study addresses the challenge of predicting investments in highly volatile assets, such as gold and ancient coins, by proposing a hybrid forecasting strategy that integrates the Grey Model (GM), Long Short-Term Memory (LSTM), and Gated Recurrent Unit (GRU). A finite automaton-based trading decision model is developed to enable rapid decision-making in dynamic market environments. Traditional methods often struggle to adapt to the unpredictability of such assets, prompting the need for advanced predictive frameworks. The methodology encompasses data preprocessing, model training, and validation, with a focus on optimizing short- and long-term forecasts. Experimental results demonstrate that the hybrid GM-LSTM strategy significantly enhances prediction accuracy: GM excels in short-term forecasting (first 200 days) due to its efficiency with limited data, while LSTM outperforms in long-term scenarios by capturing complex temporal dependencies. A dynamic weight adjustment mechanism, incorporating profit (PI) and risk indices (RI), balances returns and risks. Sensitivity analysis reveals the model’s robustness under varying transaction costs (0.1%–10%), maintaining profitability even at higher cost levels. Key performance metrics—annualized return, Sharpe ratio, and maximum drawdown—validate the strategy’s superiority over benchmarks like buy-and-hold. The state machine-driven trading model, evaluated through Value at Risk (VaR) and sliding window protocols, ensures adaptability across market conditions. This work provides traders with a data-driven decision-making tool, optimizing investment strategies while mitigating risks in volatile markets.