Search Results for author: Zhongchang Sun

Found 7 papers, 0 papers with code

Constrained Reinforcement Learning Under Model Mismatch

no code implementations2 May 2024 Zhongchang Sun, Sihong He, Fei Miao, Shaofeng Zou

Existing studies on constrained reinforcement learning (RL) may obtain a well-performing policy in the training environment.

Neural Stochastic Differential Equations with Change Points: A Generative Adversarial Approach

no code implementations20 Dec 2023 Zhongchang Sun, Yousef El-Laham, Svitlana Vyetrenko

Given a time series dataset, the proposed method jointly learns the unknown change points and the parameters of distinct neural SDE models corresponding to each change point.

Change Point Detection Time Series

Quickest Change Detection in Autoregressive Models

no code implementations13 Oct 2023 Zhongchang Sun, Shaofeng Zou

The data-driven setting where the disturbance signal parameters are unknown is further investigated, and an online and computationally efficient gradient ascent CuSum algorithm is designed.

Change Detection

Quickest Anomaly Detection in Sensor Networks With Unlabeled Samples

no code implementations4 Sep 2022 Zhongchang Sun, Shaofeng Zou

The goal of the fusion center is to detect the anomaly with minimal detection delay subject to false alarm constraints.

Anomaly Detection

Kernel Robust Hypothesis Testing

no code implementations23 Mar 2022 Zhongchang Sun, Shaofeng Zou

For the Bayesian setting where the goal is to minimize the worst-case error probability, an optimal test is firstly obtained when the alphabet is finite.

Quickest Change Detection in Anonymous Heterogeneous Sensor Networks

no code implementations26 Feb 2022 Zhongchang Sun, Shaofeng Zou, Ruizhi Zhang, Qunwei Li

The problem of quickest change detection (QCD) in anonymous heterogeneous sensor networks is studied.

Change Detection

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