Edris Loftpouri, a recent graduate from Lehigh University’s Master of Financial Engineering program, dives into his research on Bayesian Neural Networks (BNNs). He discusses their innovative applications for macroeconomic forecasting and catastrophe modeling. Edris highlights how BNNs tackle the challenges of limited data and complex relationships, showcasing their advantages over traditional models. He also emphasizes the growing importance of catastrophe bonds in managing risks linked to climate change and natural disasters, stressing the need for advanced predictive techniques.
Bayesian Neural Networks uniquely address macroeconomic forecasting challenges by incorporating diverse activation functions to understand complex relationships in data.
The integration of synthetic data with real-world observations enhances model robustness, allowing for better understanding and application of economic relationships.
Deep dives
Challenges of Applying Neural Networks to Macroeconomic Data
Applying neural networks in macroeconomic analysis presents significant challenges due to the characteristics of macroeconomic data. This data often suffers from a small sample size, limiting the number of observations, and contains a wide array of variables such as inflation, unemployment, and GDP. Additionally, the temporal nature of such data can introduce issues like autocorrelation, complicating the ability to accurately capture relationships and non-linearities. The discussed research aims to address these challenges by utilizing Bayesian neural networks, which offer a flexible approach by incorporating a variety of activation functions to improve model performance.
Innovative Neural Network Approaches
The research highlights the use of shallow and deep neural networks with specific activation functions to better capture complex hierarchical and fine-grained relationships within macroeconomic data. A notable innovation is the application of a convex combination of activation functions, which contrasts with traditional methods that rely on a single or random activation function. This approach not only enhances adaptability but also mitigates seed dependence issues that can arise when different individuals train neural networks with varying results. By implementing these strategies, the research seeks to leverage the power of neural networks despite the inherent uncertainties in macroeconomic data.
Synthetic Data as a Training Tool
In an effort to enhance the robustness of their model, the researchers integrate synthetic data in addition to real-world data from sources like the FRED API. The synthetic data is generated through a nonlinear flip curve, allowing the model to be trained in a controlled environment where known relationships are established among variables such as inflation and unemployment. This dual approach enables the model to develop an understanding of these relationships before applying the insights to real data, thus reducing uncertainties during practical implementation. Overall, the study suggests that combining synthetic and real data can lead to more effective modeling of macroeconomic phenomena.
Edris Loftpouri MFE /24 discusses his interest on the implementation of Bayesian Neural Networks (BNNs) for macroeconomic forecasting. He also touches on Castastrophe Modeling
This project develops a Bayesian Neural Network (BNN) for macroeconomic forecasting, using stochastic volatility and Bayesian shrinkage priors to manage complex, high-dimensional data. With layer-specific and neuron-specific activation functions, the model captures both long-term dependencies and short-term nonlinear dynamics. Offering adaptive uncertainty quantification and robust volatility handling, it’s ideal for risk analysis, economic policy, and quantitative finance applications.
https://www.linkedin.com/in/edris-lotfpouri/
Get the Snipd podcast app
Unlock the knowledge in podcasts with the podcast player of the future.
AI-powered podcast player
Listen to all your favourite podcasts with AI-powered features
Discover highlights
Listen to the best highlights from the podcasts you love and dive into the full episode
Save any moment
Hear something you like? Tap your headphones to save it with AI-generated key takeaways
Share & Export
Send highlights to Twitter, WhatsApp or export them to Notion, Readwise & more
AI-powered podcast player
Listen to all your favourite podcasts with AI-powered features
Discover highlights
Listen to the best highlights from the podcasts you love and dive into the full episode