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Balanced representation learning methods have been applied successfully to counterfactual inference from observational data. However, approaches that account for survival outcomes are relatively limited. Survival data are frequently…

The fundamental problem in treatment effect estimation from observational data is confounder identification and balancing. Most of the previous methods realized confounder balancing by treating all observed pre-treatment variables as…

统计方法学 · 统计学 2021-10-13 Anpeng Wu , Kun Kuang , Junkun Yuan , Bo Li , Runze Wu , Qiang Zhu , Yueting Zhuang , Fei Wu

Vast quantities of person-generated health data (wearables) are collected but the process of annotating to feed to machine learning models is impractical. This paper discusses ways in which self-supervised approaches that use contrastive…

机器学习 · 计算机科学 2021-11-16 Kevalee Shah , Dimitris Spathis , Chi Ian Tang , Cecilia Mascolo

Treatment effects can be estimated from observational data as the difference in potential outcomes. In this paper, we address the challenge of estimating the potential outcome when treatment-dose levels can vary continuously over time.…

机器学习 · 统计学 2017-11-07 Hossein Soleimani , Adarsh Subbaswamy , Suchi Saria

Treatment effect estimation, which refers to the estimation of causal effects and aims to measure the strength of the causal relationship, is of great importance in many fields but is a challenging problem in practice. As present,…

机器学习 · 计算机科学 2021-07-20 Zhenyu Guo , Shuai Zheng , Zhizhe Liu , Kun Yan , Zhenfeng Zhu

In this work, we tackle the challenging problem of arbitrary image style transfer using a novel style feature representation learning method. A suitable style representation, as a key component in image stylization tasks, is essential to…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Yuxin Zhang , Fan Tang , Weiming Dong , Haibin Huang , Chongyang Ma , Tong-Yee Lee , Changsheng Xu

We introduce the Temporal Contrastive Transformer (TCT), a representation learning framework designed to capture contextual temporal dynamics in sequences of financial transactions. The model is trained using a self-supervised contrastive…

机器学习 · 计算机科学 2026-05-22 Danny Butvinik , Yonit Marcus , Nitzan Tal , Gabrielle Azoulay

Counterfactual reasoning is an important paradigm applicable in many fields, such as healthcare, economics, and education. In this work, we propose a novel method to address the issue of \textit{selection bias}. We learn two groups of…

机器学习 · 计算机科学 2019-12-20 Zichen Zhang , Qingfeng Lan , Lei Ding , Yue Wang , Negar Hassanpour , Russell Greiner

We study counterfactual regression, which aims to map input features to outcomes under hypothetical scenarios that differ from those observed in the data. This is particularly useful for decision-making when adapting to sudden shifts in…

统计方法学 · 统计学 2025-04-08 Kwangho Kim

Learning high-quality sentence representations benefits a wide range of natural language processing tasks. Though BERT-based pre-trained language models achieve high performance on many downstream tasks, the native derived sentence…

计算与语言 · 计算机科学 2021-05-26 Yuanmeng Yan , Rumei Li , Sirui Wang , Fuzheng Zhang , Wei Wu , Weiran Xu

Self-supervised learning has been shown to be very effective in learning useful representations, and yet much of the success is achieved in data types such as images, audio, and text. The success is mainly enabled by taking advantage of…

机器学习 · 计算机科学 2021-10-28 Talip Ucar , Ehsan Hajiramezanali , Lindsay Edwards

Deep convolutional neural networks have considerably improved state-of-the-art results for semantic segmentation. Nevertheless, even modern architectures lack the ability to generalize well to a test dataset that originates from a different…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Robert A. Marsden , Alexander Bartler , Mario Döbler , Bin Yang

Estimating the counterfactual outcome of treatment is essential for decision-making in public health and clinical science, among others. Often, treatments are administered in a sequential, time-varying manner, leading to an exponentially…

机器学习 · 统计学 2024-07-16 Shenghao Wu , Wenbin Zhou , Minshuo Chen , Shixiang Zhu

To extract robust deep representations from long sequential modeling of speech data, we propose a self-supervised learning approach, namely Contrastive Separative Coding (CSC). Our key finding is to learn such representations by separating…

音频与语音处理 · 电气工程与系统科学 2021-03-02 Jun Wang , Max W. Y. Lam , Dan Su , Dong Yu

Time series anomaly detection (TSAD) plays a vital role in many industrial applications. While contrastive learning has gained momentum in the time series domain for its prowess in extracting meaningful representations from unlabeled data,…

机器学习 · 计算机科学 2025-01-28 Katrina Chen , Mingbin Feng , Tony S. Wirjanto

Contrastive learning is a family of self-supervised methods where a model is trained to solve a classification task constructed from unlabeled data. It has recently emerged as one of the leading learning paradigms in the absence of labels…

机器学习 · 统计学 2021-03-05 Bingbin Liu , Pradeep Ravikumar , Andrej Risteski

As an exemplary self-supervised approach for representation learning, time-series contrastive learning has exhibited remarkable advancements in contemporary research. While recent contrastive learning strategies have focused on how to…

机器学习 · 计算机科学 2024-08-27 Xiyuan Jin , Jing Wang , Lei Liu , Youfang Lin

Contrastive learning has gained popularity and pushes state-of-the-art performance across numerous large-scale benchmarks. In contrastive learning, the contrastive loss function plays a pivotal role in discerning similarities between…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Haojin Deng , Yimin Yang

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

Counterfactually Augmented Data (CAD) involves creating new data samples by applying minimal yet sufficient modifications to flip the label of existing data samples to other classes. Training with CAD enhances model robustness against…

机器学习 · 计算机科学 2024-06-12 Xiaoqi Qiu , Yongjie Wang , Xu Guo , Zhiwei Zeng , Yue Yu , Yuhong Feng , Chunyan Miao