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Quantifying Tail Risks in Credit Assets: A Deep Parametric Architecture Combining LSTM and Heavy-Tailed Distributions
Conference paper   Peer reviewed

Quantifying Tail Risks in Credit Assets: A Deep Parametric Architecture Combining LSTM and Heavy-Tailed Distributions

Hao Jin, Jingdong Huang, Xinyi Zhang, Sajid Anwar, Hammad Siddiqi and Wen Shi
Proceedings of the 2026 International Conference on Computational Intelligence and Machine Learning (CIML), pp.455-459
International Conference on Computational Intelligence and Machine Learning (CIML), 2026 (Hangzhou, China, 27-Mar-2026–29-Mar-2026)
Institute of Electrical and Electronics Engineers
2026

Abstract

Finance services Architecture Computer architecture Deep Parametric Model Expected Shortfall Heavy-tailed Distributions Long short term memory LSTM-t Machine learning Measurement Modeling Printing Reactive power Tail Testing Value at Risk
The integration of computational intelligence and machine learning provides a robust paradigm for navigating complex, real-world challenges like extreme market volatility. While executive management relies on a single, decisive metric: Value at Risk and Expected Shortfall to dictate risk exposure, traditional Gaussian models frequently miscalculate these boundaries. To resolve this, we propose a Deep Parametric Risk Architecture. We systematically extend Value at Risk and Expected Shortfall computation into non-Gaussian environments by integrating a Long Short-Term Memory network with four distinct heavy-tailed mathematical engines: Student's t, Cauchy, Rayleigh, and Lévy distributions. Utilizing dynamic temporal feature extraction, the neural network continuously calibrates distribution parameters to capture non-linear volatility clustering. Comprehensive backtesting demonstrates that static Gaussian baselines systematically underestimate risk, resulting in severe limit breaches. Conversely, unconstrained heavy-tailed models mathematically eliminate violations but induce excessive capital requirements. The constrained Long Short-Term Memory network with Student's t architecture achieves an optimal regulatory balance, yielding a precise violation rate of 0.39% and satisfying the Kupiec Proportion of Failures test (p-value = 0.1087). Ultimately, to satisfy strict regulatory reporting mandates against pure black-box models, this research fuses deep learning with statistical mechanics into a hybrid system, advancing computational intelligence in robust institutional risk management.

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