Search Results for author: Weishen Pan

Found 12 papers, 4 papers with code

Local Discovery by Partitioning: Polynomial-Time Causal Discovery Around Exposure-Outcome Pairs

no code implementations25 Oct 2023 Jacqueline Maasch, Weishen Pan, Shantanu Gupta, Volodymyr Kuleshov, Kyra Gan, Fei Wang

Causal discovery is crucial for causal inference in observational studies: it can enable the identification of valid adjustment sets (VAS) for unbiased effect estimation.

Causal Discovery Causal Inference +1

Bipartite Ranking Fairness through a Model Agnostic Ordering Adjustment

1 code implementation27 Jul 2023 Sen Cui, Weishen Pan, ChangShui Zhang, Fei Wang

xOrder consistently achieves a better balance between the algorithm utility and ranking fairness on a variety of datasets with different metrics.

Fairness

InfoDiffusion: Representation Learning Using Information Maximizing Diffusion Models

no code implementations14 Jun 2023 Yingheng Wang, Yair Schiff, Aaron Gokaslan, Weishen Pan, Fei Wang, Christopher De Sa, Volodymyr Kuleshov

While diffusion models excel at generating high-quality samples, their latent variables typically lack semantic meaning and are not suitable for representation learning.

Representation Learning

Patchwork Learning: A Paradigm Towards Integrative Analysis across Diverse Biomedical Data Sources

no code implementations10 May 2023 Suraj Rajendran, Weishen Pan, Mert R. Sabuncu, Yong Chen, Jiayu Zhou, Fei Wang

By offering a more comprehensive approach to healthcare data integration, patchwork learning has the potential to revolutionize the clinical applicability of ML models.

Data Integration

Correcting the User Feedback-Loop Bias for Recommendation Systems

no code implementations13 Sep 2021 Weishen Pan, Sen Cui, Hongyi Wen, Kun Chen, ChangShui Zhang, Fei Wang

We empirically validated the existence of such user feedback-loop bias in real world recommendation systems and compared the performance of our method with the baseline models that are either without de-biasing or with propensity scores estimated by other methods.

Recommendation Systems Selection bias

Addressing Algorithmic Disparity and Performance Inconsistency in Federated Learning

1 code implementation NeurIPS 2021 Sen Cui, Weishen Pan, Jian Liang, ChangShui Zhang, Fei Wang

In this paper, we propose an FL framework to jointly consider performance consistency and algorithmic fairness across different local clients (data sources).

Fairness Federated Learning

Collaboration Equilibrium in Federated Learning

1 code implementation18 Aug 2021 Sen Cui, Jian Liang, Weishen Pan, Kun Chen, ChangShui Zhang, Fei Wang

Federated learning (FL) refers to the paradigm of learning models over a collaborative research network involving multiple clients without sacrificing privacy.

Federated Learning

Explaining Algorithmic Fairness Through Fairness-Aware Causal Path Decomposition

no code implementations11 Aug 2021 Weishen Pan, Sen Cui, Jiang Bian, ChangShui Zhang, Fei Wang

Algorithmic fairness has aroused considerable interests in data mining and machine learning communities recently.

Attribute Fairness +1

The Definitions of Interpretability and Learning of Interpretable Models

no code implementations29 May 2021 Weishen Pan, ChangShui Zhang

As machine learning algorithms getting adopted in an ever-increasing number of applications, interpretation has emerged as a crucial desideratum.

Decision Making

Unsupervised Disentanglement Learning by intervention

no code implementations1 Jan 2021 Weishen Pan, Sen Cui, ChangShui Zhang

In this paper, we focus on the unsupervised learning of disentanglement in a general setting which the generative factors may be correlated.

Disentanglement Translation

Towards Model-Agnostic Post-Hoc Adjustment for Balancing Ranking Fairness and Algorithm Utility

1 code implementation15 Jun 2020 Sen Cui, Weishen Pan, Chang-Shui Zhang, Fei Wang

Bipartite ranking, which aims to learn a scoring function that ranks positive individuals higher than negative ones from labeled data, is widely adopted in various applications where sample prioritization is needed.

Fairness

Weakly- and Semi-Supervised Object Detection with Expectation-Maximization Algorithm

no code implementations28 Feb 2017 Ziang Yan, Jian Liang, Weishen Pan, Jin Li, Chang-Shui Zhang

Object detection when provided image-level labels instead of instance-level labels (i. e., bounding boxes) during training is an important problem in computer vision, since large scale image datasets with instance-level labels are extremely costly to obtain.

object-detection Object Detection +1

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