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相关论文: Learning Preference-Based Objectives from Clinical…

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Recurrent neural networks (RNNs) are commonly applied to clinical time-series data with the goal of learning patient risk stratification models. Their effectiveness is due, in part, to their use of parameter sharing over time (i.e., cells…

机器学习 · 计算机科学 2020-01-03 Jeeheh Oh , Jiaxuan Wang , Shengpu Tang , Michael Sjoding , Jenna Wiens

Capturing the dynamics in user preference is crucial to better predict user future behaviors because user preferences often drift over time. Many existing recommendation algorithms -- including both shallow and deep ones -- often model such…

信息检索 · 计算机科学 2022-04-05 Chao Chen , Dongsheng Li , Junchi Yan , Xiaokang Yang

In many clinical trials, individuals in different subgroups have experience differential treatment effects. This leads to individualized differences in treatment benefit. In this article, we introduce the general concept of predictive…

统计方法学 · 统计学 2018-07-11 Debashis Ghosh , Youngjoo Cho

Objective: To automatically create large labeled training datasets and reduce the efforts of feature engineering for training accurate machine learning models for clinical information extraction. Materials and Methods: We propose a distant…

We study the problem of learning to choose from m discrete treatment options (e.g., news item or medical drug) the one with best causal effect for a particular instance (e.g., user or patient) where the training data consists of passive…

机器学习 · 统计学 2017-08-02 Nathan Kallus

In machine learning for sequential decision-making, an algorithmic agent learns to interact with an environment while receiving feedback in the form of a reward signal. However, in many unstructured real-world settings, such a reward signal…

机器学习 · 计算机科学 2023-07-25 Ellen Novoseller , Vinicius G. Goecks , David Watkins , Josh Miller , Nicholas Waytowich

Neural processes (NPs) learn stochastic processes and predict the distribution of target output adaptively conditioned on a context set of observed input-output pairs. Furthermore, Attentive Neural Process (ANP) improved the prediction…

机器学习 · 计算机科学 2019-10-22 Shenghao Qin , Jiacheng Zhu , Jimmy Qin , Wenshuo Wang , Ding Zhao

Interpreting critical variables involved in complex biological processes related to survival time can help understand prediction from survival models, evaluate treatment efficacy, and develop new therapies for patients. Currently, the…

机器学习 · 计算机科学 2022-10-03 Xinxing Wu , Chong Peng , Richard Charnigo , Qiang Cheng

Driving behavior modeling is of great importance for designing safe, smart, and personalized autonomous driving systems. In this paper, an internal reward function-based driving model that emulates the human's decision-making mechanism is…

机器人学 · 计算机科学 2021-07-21 Zhiyu Huang , Jingda Wu , Chen Lv

Supervised learning, more specifically Convolutional Neural Networks (CNN), has surpassed human ability in some visual recognition tasks such as detection of traffic signs, faces and handwritten numbers. On the other hand, even…

机器人学 · 计算机科学 2018-09-18 Hai Nguyen , Hung Manh La , Matthew Deans

Reward functions are difficult to design and often hard to align with human intent. Preference-based Reinforcement Learning (RL) algorithms address these problems by learning reward functions from human feedback. However, the majority of…

机器学习 · 计算机科学 2023-11-28 Joey Hejna , Dorsa Sadigh

In recent years, data-driven reinforcement learning (RL), also known as offline RL, have gained significant attention. However, the role of data sampling techniques in offline RL has been overlooked despite its potential to enhance online…

机器学习 · 计算机科学 2025-03-24 Jinyi Liu , Yi Ma , Jianye Hao , Yujing Hu , Yan Zheng , Tangjie Lv , Changjie Fan

Stabilized dynamic treatment regimes are sequential decision rules for individual patients that not only adaptive throughout the disease progression but also remain consistent over time in format. The estimation of stabilized dynamic…

统计方法学 · 统计学 2019-03-05 Ying-Qi Zhao , Ruoqing Zhu , Guanhua Chen , Yingye Zheng

Reward design remains a significant bottleneck in applying reinforcement learning (RL) to real-world problems. A popular alternative is reward learning, where reward functions are inferred from human feedback rather than manually specified.…

机器学习 · 计算机科学 2026-01-16 Chaitanya Kharyal , Calarina Muslimani , Matthew E. Taylor

In online continual learning, a neural network incrementally learns from a non-i.i.d. data stream. Nearly all online continual learning methods employ experience replay to simultaneously prevent catastrophic forgetting and underfitting on…

机器学习 · 计算机科学 2024-07-22 Jason Yoo , Yunpeng Liu , Frank Wood , Geoff Pleiss

For effective real-world deployment, robots should adapt to human preferences, such as balancing distance, time, and safety in delivery routing. Active preference learning (APL) learns human reward functions by presenting trajectories for…

机器人学 · 计算机科学 2025-07-09 Yi-Shiuan Tung , Bradley Hayes , Alessandro Roncone

Preference-based reinforcement learning is an effective way to handle tasks where rewards are hard to specify but can be exceedingly inefficient as preference learning is often tabula rasa. We demonstrate that Large Language Models (LLMs)…

人工智能 · 计算机科学 2025-04-04 Chao Yu , Qixin Tan , Hong Lu , Jiaxuan Gao , Xinting Yang , Yu Wang , Yi Wu , Eugene Vinitsky

Medical question answering requires advanced reasoning that integrates domain knowledge with logical inference. However, existing large language models (LLMs) often generate reasoning chains that lack factual accuracy and clinical…

计算与语言 · 计算机科学 2025-12-09 Chia-Hsuan Hsu , Jun-En Ding , Hsin-Ling Hsu , Chih-Ho Hsu , Li-Hung Yao , Chun-Chieh Liao , Feng Liu , Fang-Ming Hung

Casting session-based or sequential recommendation as reinforcement learning (RL) through reward signals is a promising research direction towards recommender systems (RS) that maximize cumulative profits. However, the direct use of RL…

机器学习 · 计算机科学 2021-11-08 Xin Xin , Alexandros Karatzoglou , Ioannis Arapakis , Joemon M. Jose

Sum-product networks (SPNs) have recently emerged as a novel deep learning architecture enabling highly efficient probabilistic inference. Since their introduction, SPNs have been applied to a wide range of data modalities and extended to…

机器学习 · 计算机科学 2022-11-15 Adam Dejl , Harsh Deep , Jonathan Fei , Ardavan Saeedi , Li-wei H. Lehman