no code implementations • 10 Jan 2023 • Shengyu Zhu, Zehua Yu, Qinghua Guo, Jinshan Ding, Qiang Cheng, Tie Jun Cui
Achieving integrated sensing and communication (ISAC) via uplink transmission is challenging due to the unknown waveform and the coupling of communication and sensing echoes.
1 code implementation • 15 Oct 2022 • Wenqian Li, Yinchuan Li, Shengyu Zhu, Yunfeng Shao, Jianye Hao, Yan Pang
Causal discovery aims to uncover causal structure among a set of variables.
1 code implementation • 17 Jun 2022 • Xinwei Shen, Shengyu Zhu, Jiji Zhang, Shoubo Hu, Zhitang Chen
In this paper, we revisit the Greedy Equivalence Search (GES) algorithm, which is widely cited as a score-based algorithm for learning the MEC of the underlying causal structure.
no code implementations • CVPR 2022 • Ruoyu Wang, Mingyang Yi, Zhitang Chen, Shengyu Zhu
In this work, we obviate these assumptions and tackle the OOD problem without explicitly recovering the causal feature.
1 code implementation • 11 Mar 2022 • Yong Lin, Shengyu Zhu, Lu Tan, Peng Cui
When data are divided into distinct environments according to the heterogeneity, recent invariant learning methods have proposed to learn robust and invariant models based on this environment partition.
1 code implementation • 23 Feb 2022 • Yan Lyu, Sunhao Dai, Peng Wu, Quanyu Dai, yuhao deng, Wenjie Hu, Zhenhua Dong, Jun Xu, Shengyu Zhu, Xiao-Hua Zhou
To better support the studies of causal inference and further explanations in recommender systems, we propose a novel semi-synthetic data generation framework for recommender systems where causal graphical models with missingness are employed to describe the causal mechanism of practical recommendation scenarios.
no code implementations • 7 Feb 2022 • Junlong Lyu, Zhitang Chen, Chang Feng, Wenjing Cun, Shengyu Zhu, Yanhui Geng, Zhijie Xu, Yongwei Chen
Invertible neural networks based on Coupling Flows CFlows) have various applications such as image synthesis and data compression.
2 code implementations • 30 Nov 2021 • Keli Zhang, Shengyu Zhu, Marcus Kalander, Ignavier Ng, Junjian Ye, Zhitang Chen, Lujia Pan
$\texttt{gCastle}$ is an end-to-end Python toolbox for causal structure learning.
no code implementations • 29 Sep 2021 • Ruoyu Wang, Mingyang Yi, Shengyu Zhu, Zhitang Chen
In this work, we obviate these assumptions and tackle the OOD problem without explicitly recovering the causal feature.
1 code implementation • 14 May 2021 • Xiaoqiang Wang, Yali Du, Shengyu Zhu, Liangjun Ke, Zhitang Chen, Jianye Hao, Jun Wang
It is a long-standing question to discover causal relations among a set of variables in many empirical sciences.
no code implementations • 25 Feb 2021 • Zhuangyan Fang, Yue Liu, Zhi Geng, Shengyu Zhu, Yangbo He
We propose a local approach to identify whether a variable is a cause of a given target under the framework of causal graphical models of directed acyclic graphs (DAGs).
no code implementations • 10 Jun 2020 • Zhuangyan Fang, Shengyu Zhu, Jiji Zhang, Yue Liu, Zhitang Chen, Yangbo He
Despite several advances in recent years, learning causal structures represented by directed acyclic graphs (DAGs) remains a challenging task in high dimensional settings when the graphs to be learned are not sparse.
3 code implementations • 18 Nov 2019 • Ignavier Ng, Shengyu Zhu, Zhitang Chen, Zhuangyan Fang
Causal structure learning has been a challenging task in the past decades and several mainstream approaches such as constraint- and score-based methods have been studied with theoretical guarantees.
2 code implementations • 18 Oct 2019 • Ignavier Ng, Shengyu Zhu, Zhuangyan Fang, Haoyang Li, Zhitang Chen, Jun Wang
This paper studies the problem of learning causal structures from observational data.
no code implementations • 2 Sep 2019 • Zhitang Chen, Shengyu Zhu, Yue Liu, Tim Tse
We show our algorithm can be reduced to an eigen-decomposition task on a kernel matrix measuring intrinsic deviance/invariance.
no code implementations • 27 Aug 2019 • Shengyu Zhu, Biao Chen, Zhitang Chen, Pengfei Yang
With Sanov's theorem, we derive a sufficient condition for one-sample tests to achieve the optimal error exponent in the universal setting, i. e., for any distribution defining the alternative hypothesis.
1 code implementation • ICLR 2020 • Shengyu Zhu, Ignavier Ng, Zhitang Chen
The reward incorporates both the predefined score function and two penalty terms for enforcing acyclicity.
no code implementations • 23 Feb 2018 • Shengyu Zhu, Biao Chen, Zhitang Chen
Given two sets of independent samples from unknown distributions $P$ and $Q$, a two-sample test decides whether to reject the null hypothesis that $P=Q$.
no code implementations • 21 Feb 2018 • Shengyu Zhu, Biao Chen, Pengfei Yang, Zhitang Chen
We show that two classes of Maximum Mean Discrepancy (MMD) based tests attain this optimality on $\mathbb R^d$, while the quadratic-time Kernel Stein Discrepancy (KSD) based tests achieve the maximum exponential decay rate under a relaxed level constraint.