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Off-policy reinforcement learning enables near-optimal policy from suboptimal experience, thereby provisions opportunity for artificial intelligence applications in healthcare. Previous works have mainly framed patient-clinician…

人工智能 · 计算机科学 2018-06-05 Luchen Li , Matthieu Komorowski , Aldo A. Faisal

Objective: Epilepsy is a chronic neurological disorder characterized by the occurrence of spontaneous seizures, which affects about one percent of the world's population. Most of the current seizure detection approaches strongly rely on…

信号处理 · 电气工程与系统科学 2020-02-04 Xiang Zhang , Lina Yao , Manqing Dong , Zhe Liu , Yu Zhang , Yong Li

In many stochastic service systems, decision-makers find themselves making a sequence of decisions, with the number of decisions being unpredictable. To enhance these decisions, it is crucial to uncover the causal impact these decisions…

统计方法学 · 统计学 2023-07-18 Juan C. David Gomez , Amy L. Cochran , Gabriel Zayas-Caban

Off-policy learning, referring to the procedure of policy optimization with access only to logged feedback data, has shown importance in various real-world applications, such as search engines, recommender systems, and etc. While the…

机器学习 · 计算机科学 2023-09-28 Xiaoying Zhang , Junpu Chen , Hongning Wang , Hong Xie , Yang Liu , John C. S. Lui , Hang Li

People's goal-directed behaviors are influenced by their cognitive biases, and autonomous systems that interact with people should be aware of this. For example, people's attention to objects in their environment will be biased in a way…

Precision medicine leverages patient heterogeneity to estimate individualized treatment regimens, formalized, data-driven approaches designed to match patients with optimal treatments. In the presence of competing events, where multiple…

统计方法学 · 统计学 2024-11-14 Christina W. Zhou , Nikki L. B. Freeman , Katharine L. McGinigle , Michael R. Kosorok

Sepsis requires urgent diagnosis, but research is predominantly focused on Western datasets. In this study, we perform a comparative analysis of two ensemble learning methods, LightGBM and XGBoost, using the public eICU-CRD dataset and a…

机器学习 · 计算机科学 2023-11-09 Surajsinh Parmar , Tao Shan , San Lee , Yonghwan Kim , Jang Yong Kim

Conventional treatment policies map patient covariates to a single recommended intervention in order to maximize expected clinical outcomes. Although a rich body of causal inference methods has been developed to estimate such policies,…

机器学习 · 计算机科学 2026-05-20 Laura Fuentes-Vicente , Mathieu Even , Gaëlle Dormion , Antoine Chambaz , Uri Shalit , Julie Josse

Opioids are the preferred medications for the treatment of pain in the intensive care unit. While undertreatment leads to unrelieved pain and poor clinical outcomes, excessive use of opioids puts patients at risk of experiencing multiple…

机器学习 · 计算机科学 2019-04-26 Daniel Lopez-Martinez , Patrick Eschenfeldt , Sassan Ostvar , Myles Ingram , Chin Hur , Rosalind Picard

We propose a novel approach for inferring the individualized causal effects of a treatment (intervention) from observational data. Our approach conceptualizes causal inference as a multitask learning problem; we model a subject's potential…

机器学习 · 计算机科学 2017-06-20 Ahmed M. Alaa , Michael Weisz , Mihaela van der Schaar

Importance sampling (IS) is often used to perform off-policy policy evaluation but is prone to several issues, especially when the behavior policy is unknown and must be estimated from data. Significant differences between the target and…

机器学习 · 计算机科学 2021-11-23 Anton Matsson , Fredrik D. Johansson

Contrastive learning has proven effective in training sequential recommendation models by incorporating self-supervised signals from augmented views. Most existing methods generate multiple views from the same interaction sequence through…

信息检索 · 计算机科学 2025-04-24 Yuanpeng Qu , Hajime Nobuhara

We design and implement a temporal convolutional network model to predict sepsis onset. Our model is trained on data extracted from MIMIC III database, based on a retrospective analysis of patients admitted to intensive care unit who did…

机器学习 · 计算机科学 2022-06-01 Xing Wang , Yuntian He

Intent inferral, the process by which a robotic device predicts a user's intent from biosignals, offers an effective and intuitive way to control wearable robots. Classical intent inferral methods treat biosignal inputs as unidirectional…

Counterfactual thinking describes a psychological phenomenon that people re-infer the possible results with different solutions about things that have already happened. It helps people to gain more experience from mistakes and thus to…

机器学习 · 计算机科学 2019-08-19 Yue Wang , Yao Wan , Chenwei Zhang , Lixin Cui , Lu Bai , Philip S. Yu

Sepsis is the leading cause of in-hospital mortality in the USA. Early sepsis onset prediction and diagnosis could significantly improve the survival of sepsis patients. Existing predictive models are usually trained on high-quality data…

机器学习 · 计算机科学 2024-07-25 Changchang Yin , Pin-Yu Chen , Bingsheng Yao , Dakuo Wang , Jeffrey Caterino , Ping Zhang

Dynamic treatment regimes formalize precision medicine as a sequence of decision rules, one for each stage of clinical intervention, that map current patient information to a recommended intervention. Optimal regimes are typically defined…

统计方法学 · 统计学 2024-07-09 Kyle Duke , Eric B. Laber , Marie Davidian , Michael Newcomb , Brian Mustanksi

Sepsis is a life-threatening disease and one of the major causes of death in hospitals. Imaging of microcirculatory dysfunction is a promising approach for automated diagnosis of sepsis. We report a machine learning classifier capable of…

计算机视觉与模式识别 · 计算机科学 2019-02-21 Perikumar Javia , Aman Rana , Nathan Shapiro , Pratik Shah

Medical automatic diagnosis aims to imitate human doctors in real-world diagnostic processes and to achieve accurate diagnoses by interacting with the patients. The task is formulated as a sequential decision-making problem with a series of…

机器学习 · 计算机科学 2022-06-07 Hongyi Yuan , Sheng Yu

Clinical machine learning deployment across institutions faces significant challenges when patient populations and clinical practices differ substantially. We present a systematic framework for cross-institutional knowledge transfer in…

机器学习 · 计算机科学 2025-01-28 Yuxuan Liu , Jinpei Han , Padmanabhan Ramnarayan , A. Aldo Faisal