[HTML][HTML] Mean field analysis of neural networks: A central limit theorem

J Sirignano, K Spiliopoulos - Stochastic Processes and their Applications, 2020 - Elsevier
We rigorously prove a central limit theorem for neural network models with a single hidden
layer. The central limit theorem is proven in the asymptotic regime of simultaneously (A) …

Mean field analysis of neural networks: A law of large numbers

J Sirignano, K Spiliopoulos - SIAM Journal on Applied Mathematics, 2020 - SIAM
Machine learning, and in particular neural network models, have revolutionized fields such
as image, text, and speech recognition. Today, many important real-world applications in …

Counterparty contagion in context: Contributions to systemic risk

JC Staum - Available at SSRN 1963459, 2012 - papers.ssrn.com
This article surveys models of counterparty contagion and their application in systemic risk
management, emphasizing the network of counterparty relationships. It addresses how …

Particle systems with singular interaction through hitting times: application in systemic risk modeling

S Nadtochiy, M Shkolnikov - 2019 - projecteuclid.org
We propose an interacting particle system to model the evolution of a system of banks with
mutual exposures. In this model, a bank defaults when its normalized asset value hits a …

[HTML][HTML] Convergence, fluctuations and large deviations for finite state mean field games via the master equation

A Cecchin, G Pelino - Stochastic Processes and their Applications, 2019 - Elsevier
We show the convergence of finite state symmetric N-player differential games, where
players control their transition rates from state to state, to a limiting dynamics given by a finite …

[图书][B] Concentration risk in credit portfolios

E Lütkebohmert - 2008 - books.google.com
Modeling and management of credit risk are the main topics within banks and other lending
institutions. Historical experience shows that, in particular, concentration of risk in credit …

-player games and mean-field games with absorption

L Campi, M Fischer - 2018 - projecteuclid.org
We introduce a simple class of mean-field games with absorbing boundary over a finite time
horizon. In the corresponding N-player games, the evolution of players' states is described …

Default clustering in large portfolios: Typical events

K Giesecke, K Spiliopoulos, RB Sowers - 2013 - projecteuclid.org
We develop a dynamic point process model of correlated default timing in a portfolio of firms,
and analyze typical default profiles in the limit as the size of the pool grows. In our model, a …

A Comprehensive Survey on Enterprise Financial Risk Analysis from Big Data Perspective

Y Zhao, H Du, Q Li, F Zhuang, J Liu, G Kou - arXiv preprint arXiv …, 2022 - arxiv.org
Enterprise financial risk analysis aims at predicting the future financial risk of enterprises.
Due to its wide and significant application, enterprise financial risk analysis has always been …

Large portfolio asymptotics for loss from default

K Giesecke, K Spiliopoulos, RB Sowers… - Mathematical …, 2015 - Wiley Online Library
We prove a law of large numbers for the loss from default and use it for approximating the
distribution of the loss from default in large, potentially heterogeneous portfolios. The density …