no code implementations • 7 Nov 2023 • Song Yaoxian, Sun Penglei, Liu Haoyu, Li Zhixu, Song Wei, Xiao Yanghua, Zhou Xiaofang
Currently, knowledge base for embodied tasks is missing and most existing work use general knowledge base or pre-trained models to enhance the intelligence of an agent.
no code implementations • 5 Oct 2023 • Song Wei, Xiangrui Kong, Alinson Santos Xavier, Shixiang Zhu, Yao Xie, Feng Qiu
Energy justice is a growing area of interest in interdisciplinary energy research.
no code implementations • 4 Sep 2023 • Song Wei, Andrea Coletta, Svitlana Vyetrenko, Tucker Balch
To adapt to any environment with interactive sequential decision making agents, INTAGS formulates the simulator as a stochastic policy in reinforcement learning.
no code implementations • 16 May 2023 • Song Wei, Hanyu Zhang, Ronald Moore, Rishikesan Kamaleswaran, Yao Xie
We present a Transfer Causal Learning (TCL) framework when target and source domains share the same covariate/feature spaces, aiming to improve causal effect estimation accuracy in limited data.
no code implementations • 26 Jan 2023 • Song Wei, Yao Xie
Structural learning, which aims to learn directed acyclic graphs (DAGs) from observational data, is foundational to causal reasoning and scientific discovery.
no code implementations • 26 Jan 2023 • Song Wei, Yao Xie, Christopher S. Josef, Rishikesan Kamaleswaran
We present a generalized linear structural causal model, coupled with a novel data-adaptive linear regularization, to recover causal directed acyclic graphs (DAGs) from time series.
1 code implementation • 28 Nov 2022 • Song Wei, Yao Xie
We present a computationally efficient online kernel Cumulative Sum (CUSUM) method for change-point detection that utilizes the maximum over a set of kernel statistics to account for the unknown change-point location.
no code implementations • 26 Oct 2022 • Song Wei, Chaofan Huang
We present a novel scheme to boost detection power for kernel maximum mean discrepancy based sequential change-point detection procedures.
1 code implementation • 9 Sep 2022 • Song Wei, Yao Xie, Christopher S. Josef, Rishikesan Kamaleswaran
Modern health care systems are conducting continuous, automated surveillance of the electronic medical record (EMR) to identify adverse events with increasing frequency; however, many events such as sepsis do not have elucidated prodromes (i. e., event chains) that can be used to identify and intercept the adverse event early in its course.
no code implementations • 4 Jun 2021 • Song Wei, Yao Xie, Christopher S. Josef, Rishikesan Kamaleswaran
We present a generalized linear structural causal model, coupled with a novel data-adaptive linear regularization, to recover causal directed acyclic graphs (DAGs) from time series.
no code implementations • 24 Feb 2021 • Tianyi Liu, Yan Li, Song Wei, Enlu Zhou, Tuo Zhao
Numerous empirical evidences have corroborated the importance of noise in nonconvex optimization problems.
no code implementations • 26 Jan 2021 • Song Wei, Yao Xie, Dobromir Rahnev
Sequential data with serial correlation and an unknown, unstructured, and dynamic background is ubiquitous in neuroscience, psychology, and econometrics.
Statistics Theory Methodology Statistics Theory
no code implementations • 16 Jun 2020 • Song Wei, Shixiang Zhu, Minghe Zhang, Yao Xie
Recently there have been many research efforts in developing generative models for self-exciting point processes, partly due to their broad applicability for real-world applications.