Search Results for author: Jin Tian

Found 20 papers, 2 papers with code

Improving Adversarial Training using Vulnerability-Aware Perturbation Budget

no code implementations6 Mar 2024 Olukorede Fakorede, Modeste Atsague, Jin Tian

Adversarial Training (AT) effectively improves the robustness of Deep Neural Networks (DNNs) to adversarial attacks.

Vulnerability-Aware Instance Reweighting For Adversarial Training

no code implementations14 Jul 2023 Olukorede Fakorede, Ashutosh Kumar Nirala, Modeste Atsague, Jin Tian

Adversarial Training (AT) has been found to substantially improve the robustness of deep learning classifiers against adversarial attacks.

Neuro-Symbolic Execution of Generic Source Code

no code implementations23 Mar 2023 Yaojie Hu, Jin Tian

NI is the first neural model capable of executing Py150 dataset programs, including library functions without concrete inputs, and it can be trained with flexible code understanding objectives.

Variable misuse

Improving Adversarial Robustness with Hypersphere Embedding and Angular-based Regularizations

no code implementations15 Mar 2023 Olukorede Fakorede, Ashutosh Nirala, Modeste Atsague, Jin Tian

In this paper, we propose integrating HE into AT with regularization terms that exploit the rich angular information available in the HE framework.

Adversarial Robustness

Finding and Listing Front-door Adjustment Sets

2 code implementations11 Oct 2022 Hyunchai Jeong, Jin Tian, Elias Bareinboim

Identifying the effects of new interventions from data is a significant challenge found across a wide range of the empirical sciences.

Causal Effect Identification in Cluster DAGs

no code implementations22 Feb 2022 Tara V. Anand, Adèle H. Ribeiro, Jin Tian, Elias Bareinboim

Finally, we show that C-DAGs are valid for performing counterfactual inferences about clusters of variables.

counterfactual valid

Double Machine Learning Density Estimation for Local Treatment Effects with Instruments

no code implementations NeurIPS 2021 Yonghan Jung, Jin Tian, Elias Bareinboim

We study the problem of estimating the density of the causal effect of a binary treatment on a continuous outcome given a binary instrumental variable in the presence of covariates.

BIG-bench Machine Learning Density Estimation

Partial Counterfactual Identification from Observational and Experimental Data

no code implementations12 Oct 2021 Junzhe Zhang, Jin Tian, Elias Bareinboim

This paper investigates the problem of bounding counterfactual queries from an arbitrary collection of observational and experimental distributions and qualitative knowledge about the underlying data-generating model represented in the form of a causal diagram.

counterfactual

Beyond Discriminant Patterns: On the Robustness of Decision Rule Ensembles

no code implementations21 Sep 2021 Xin Du, Subramanian Ramamoorthy, Wouter Duivesteijn, Jin Tian, Mykola Pechenizkiy

Specifically, we propose to leverage causal knowledge by regarding the distributional shifts in subpopulations and deployment environments as the results of interventions on the underlying system.

Partial Identification of Counterfactual Distributions

no code implementations NeurIPS 2021 Junzhe Zhang, Elias Bareinboim, Jin Tian

We show that all counterfactual distributions (over finite observed variables) in an arbitrary causal diagram could be generated by a special family of structural causal models (SCMs), compatible with the same causal diagram, where unobserved (exogenous) variables are discrete, taking values in a finite domain.

counterfactual

Data Poisoning Attacks and Defenses to Crowdsourcing Systems

no code implementations18 Feb 2021 Minghong Fang, Minghao Sun, Qi Li, Neil Zhenqiang Gong, Jin Tian, Jia Liu

Our empirical results show that the proposed defenses can substantially reduce the estimation errors of the data poisoning attacks.

Data Poisoning

Learning Causal Effects via Weighted Empirical Risk Minimization

no code implementations NeurIPS 2020 Yonghan Jung, Jin Tian, Elias Bareinboim

In this paper, we develop a learning framework that marries two families of methods, benefiting from the generality of the causal identification theory and the effectiveness of the estimators produced based on the principle of ERM.

Causal Identification Causal Inference

Supervised Whole DAG Causal Discovery

1 code implementation8 Jun 2020 Hebi Li, Qi Xiao, Jin Tian

We propose a novel approach of modeling the whole DAG structure discovery as a supervised learning.

Causal Discovery

Adjustment Criteria for Recovering Causal Effects from Missing Data

no code implementations2 Jul 2019 Mojdeh Saadati, Jin Tian

In this paper, we introduce a covariate adjustment formulation for controlling confounding bias in the presence of missing-not-at-random data and develop a necessary and sufficient condition for recovering causal effects using the adjustment.

Causal Inference Selection bias +1

Recoverability of Joint Distribution from Missing Data

no code implementations15 Nov 2016 Jin Tian

A probabilistic query may not be estimable from observed data corrupted by missing values if the data are not missing at random (MAR).

Structure Learning in Bayesian Networks of Moderate Size by Efficient Sampling

no code implementations19 Jan 2015 Ru He, Jin Tian, Huaiqing Wu

We study the Bayesian model averaging approach to learning Bayesian network structures (DAGs) from data.

A Parallel Algorithm for Exact Bayesian Structure Discovery in Bayesian Networks

no code implementations7 Aug 2014 Yetian Chen, Jin Tian, Olga Nikolova, Srinivas Aluru

Using dynamic programming (DP), the fastest known sequential algorithm computes the exact posterior probabilities of structural features in $O(2(d+1)n2^n)$ time and space, if the number of nodes (variables) in the Bayesian network is $n$ and the in-degree (the number of parents) per node is bounded by a constant $d$.

Playing the Game of 2048

Graphical Models for Inference with Missing Data

no code implementations NeurIPS 2013 Karthika Mohan, Judea Pearl, Jin Tian

We address the problem of deciding whether there exists a consistent estimator of a given relation Q, when data are missing not at random.

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