no code implementations • 23 Apr 2024 • Zhuoyuan Wang, Haoming Jing, Christian Kurniawan, Albert Chern, Yorie Nakahira
When the target probability is defined using long-term trajectories, this technique can be used to design myopic conditions/controllers with assured long-term safe probability.
1 code implementation • 25 Mar 2024 • Hikaru Hoshino, Yorie Nakahira
Motivated by this, we study how to estimate the long-term safety probability of maximally safe actions without sufficient coverage of samples from risky states and long-term trajectories.
1 code implementation • 24 Mar 2024 • Oren Wright, Yorie Nakahira, José M. F. Moura
Uncertainty quantification of neural networks is critical to measuring the reliability and robustness of deep learning systems.
no code implementations • 18 Mar 2024 • Quan Khanh Luu, Xiyu Deng, Anh Van Ho, Yorie Nakahira
It is challenging for autonomous control systems to perform complex tasks in the presence of latent risks.
no code implementations • 9 Mar 2024 • Ritabrata Ray, Yorie Nakahira, Soummya Kar
In this paper, we study the problem of ensuring safety with a few shots of samples for partially unknown systems.
1 code implementation • 17 Dec 2023 • Zhuoyuan Wang, Reece Keller, Xiyu Deng, Kenta Hoshino, Takashi Tanaka, Yorie Nakahira
Optimal and safety-critical control are fundamental problems for stochastic systems, and are widely considered in real-world scenarios such as robotic manipulation and autonomous driving.
1 code implementation • 10 May 2023 • Zhuoyuan Wang, Yorie Nakahira
In this paper, we develop an efficient method to evaluate the probabilities of long-term risk and their gradients.
no code implementations • 26 Jul 2022 • Christian Kurniawan, Xiyu Deng, Adhiraj Chakraborty, Assane Gueye, Niangjun Chen, Yorie Nakahira
Although many methods in regular finance can estimate credit scores and default probabilities, these methods are not directly applicable to microfinance due to the following unique characteristics: a) under-explored (developing) areas such as rural Africa do not have sufficient prior loan data for microfinance institutions (MFIs) to establish a credit scoring system; b) microfinance applicants may have difficulty providing sufficient information for MFIs to accurately predict default probabilities; and c) many MFIs use group liability (instead of collateral) to secure repayment.