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Deep transfer learning (DTL) is a fundamental method in the field of Intelligent Fault Detection (IFD). It aims to mitigate the degradation of method performance that arises from the discrepancies in data distribution between training set…

机器学习 · 计算机科学 2024-02-21 Zhongzhi Li , Jingqi Tu , Jiacheng Zhu , Jianliang Ai , Yiqun Dong

Due to the popularity of the Internet and smart mobile devices, more and more financial transactions and activities have been digitalized. Compared to traditional financial fraud detection strategies using credit-related features, customers…

机器学习 · 计算机科学 2018-08-17 Ruinan Zhang , Fanglan Zheng , Wei Min

Reinforcement learning (RL) finetuning has become a key technique for enhancing the reasoning abilities of large language models (LLMs). However, its effectiveness critically depends on the selection of training data. Recent advances…

机器学习 · 计算机科学 2026-03-12 Yixiu Mao , Yun Qu , Qi Wang , Heming Zou , Xiangyang Ji

Reinforcement learning (RL) tackles sequential decision-making problems by creating agents that interacts with their environment. However, existing algorithms often view these problem as static, focusing on point estimates for model…

机器学习 · 统计学 2024-03-21 Frank Shih , Faming Liang

Generative models now produce images with such stunning realism that they can easily deceive the human eye. While this progress unlocks vast creative potential, it also presents significant risks, such as the spread of misinformation.…

计算机视觉与模式识别 · 计算机科学 2026-01-29 Yichi Zhang , Xiaogang Xu

Online decision tree learning algorithms typically examine all features of a new data point to update model parameters. We propose a novel alternative, Reinforcement Learning- based Decision Trees (RLDT), that uses Reinforcement Learning…

机器学习 · 计算机科学 2015-07-27 Abhinav Garlapati , Aditi Raghunathan , Vaishnavh Nagarajan , Balaraman Ravindran

Machine learning is essentially the sciences of playing with data. An adaptive data selection strategy, enabling to dynamically choose different data at various training stages, can reach a more effective model in a more efficient way. In…

机器学习 · 计算机科学 2017-03-01 Yang Fan , Fei Tian , Tao Qin , Jiang Bian , Tie-Yan Liu

Determinantal Point Processes (DPPs) are a family of probabilistic models that have a repulsive behavior, and lend themselves naturally to many tasks in machine learning where returning a diverse set of objects is important. While there are…

统计理论 · 数学 2017-03-03 John Urschel , Victor-Emmanuel Brunel , Ankur Moitra , Philippe Rigollet

Non-stationary environments are challenging for reinforcement learning algorithms. If the state transition and/or reward functions change based on latent factors, the agent is effectively tasked with optimizing a behavior that maximizes…

机器学习 · 计算机科学 2021-05-21 Lucas N. Alegre , Ana L. C. Bazzan , Bruno C. da Silva

Finance is a particularly challenging application area for deep learning models due to low noise-to-signal ratio, non-stationarity, and partial observability. Non-deliverable-forwards (NDF), a derivatives contract used in foreign exchange…

机器学习 · 计算机科学 2019-09-25 Michael Poli , Jinkyoo Park , Ilija Ilievski

Recently, we have struck the balance between the information freshness, in terms of age of information (AoI), experienced by users and energy consumed by sensors, by appropriately activating sensors to update their current status in caching…

机器学习 · 计算机科学 2021-04-15 Chao Xu , Yiping Xie , Xijun Wang , Howard H. Yang , Dusit Niyato , Tony Q. S. Quek

The objective of change-point detection is to discover abrupt property changes lying behind time-series data. In this paper, we present a novel statistical change-point detection algorithm based on non-parametric divergence estimation…

机器学习 · 统计学 2015-03-20 Song Liu , Makoto Yamada , Nigel Collier , Masashi Sugiyama

To overcome the curses of dimensionality and modeling of Dynamic Programming (DP) methods to solve Markov Decision Process (MDP) problems, Reinforcement Learning (RL) methods are adopted in practice. Contrary to traditional RL algorithms…

机器学习 · 计算机科学 2021-08-24 Arghyadip Roy , Vivek Borkar , Abhay Karandikar , Prasanna Chaporkar

This paper presents a fast and robust algorithm for trend filtering, a recently developed nonparametric regression tool. It has been shown that, for estimating functions whose derivatives are of bounded variation, trend filtering achieves…

机器学习 · 统计学 2015-09-01 Aaditya Ramdas , Ryan J. Tibshirani

Generative models have proven to be an outstanding tool for representing high-dimensional probability distributions and generating realistic-looking images. An essential characteristic of generative models is their ability to produce…

机器学习 · 计算机科学 2019-11-26 Mohamed Elfeki , Camille Couprie , Morgane Riviere , Mohamed Elhoseiny

Change detection has been a hotspot in remote sensing technology for a long time. With the increasing availability of multi-temporal remote sensing images, numerous change detection algorithms have been proposed. Among these methods, image…

计算机视觉与模式识别 · 计算机科学 2019-09-06 Bo Du , Lixiang Ru , Chen Wu , Liangpei Zhang

Tensor network (TN) techniques - often used in the context of quantum many-body physics - have shown promise as a tool for tackling machine learning (ML) problems. The application of TNs to ML, however, has mostly focused on supervised and…

统计力学 · 物理学 2020-02-14 Edward Gillman , Dominic C. Rose , Juan P. Garrahan

Point cloud segmentation is one of the most important tasks in computer vision with widespread scientific, industrial, and commercial applications. The research thereof has resulted in many breakthroughs in 3D object and scene…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Dening Lu , Jun Zhou , Kyle Yilin Gao , Dilong Li , Jing Du , Linlin Xu , Jonathan Li

Denoising Diffusion Probabilistic Models (DDPMs) have shown success in robust 3D object detection tasks. Existing methods often rely on the score matching from 3D boxes or pre-trained diffusion priors. However, they typically require…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Wentao Qu , Guofeng Mei , Jing Wang , Yujiao Wu , Xiaoshui Huang , Liang Xiao

Fast and scalable alignment of time series is a fundamental challenge in many domains. The standard solution, Dynamic Time Warping (DTW), struggles with poor scalability and sensitivity to noise. We introduce TimePoint, a self-supervised…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Ron Shapira Weber , Shahar Ben Ishay , Andrey Lavrinenko , Shahaf E. Finder , Oren Freifeld